369 results on '"KJ Wu"'
Search Results
2. Quality of guidelines for infection management in sepsis: a critical appraisal using the AGREE II instrument.
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Yang GX, Que T, Wang YF, Liu XB, Dou SQ, Pu SL, Wang X, Wu KJ, Wang Y, Wang Q, and Liu WJ
- Subjects
- Humans, Evidence-Based Medicine standards, Evidence-Based Medicine methods, Sepsis therapy, Practice Guidelines as Topic standards
- Abstract
Objectives: The aim of this study was to systematically assess the methodological quality of current sepsis infection management guidelines and identify gaps in knowledge that limit evidence-based practice., Methods: A systematic search was conducted to obtain guidelines for the management of sepsis infections (2012-2021), and three reviewers independently assessed the quality of eligible guidelines using Appraisal of Guidelines for Research and Evaluation (AGREE II) tool. The intraclass correlation coefficients (ICCs) were used to measure the agreement between reviewers. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach was used to analyze the strength of recommendation and level of evidence of the guideline, and the number of recommendations, strength of recommendation, and level of evidence were determined., Results: Eleven guidelines for the management of sepsis infection were identified. An overall high agreement among the evaluators for each domain was observed (ICC ranged from 0.850 to 0.959). The overall scores of the included guidelines were all over 60% (range, 62.3-89.90%), which were worthy of recommendation for clinical use; among them, 4 guidelines had an overall score of over 80%, which were high-quality guideline articles. In terms of the quality domains of the guidelines, the scope and purpose domain and the clarity of expression domain had the highest average scores, which were 93.6% (range, 79.6-98.1%) and 91.4% (range, 64.8-98.1%), respectively, while the applicability domain had the lowest average score, which was 64.8% (range, 51.4-76.4%). The strength of the recommendations of the guideline recommendations was mainly weak, accounting for 73.4%; the level of evidence cited was mainly very low quality (60.2%) and low quality (28.1%)., Conclusions: The quality of sepsis infection management guidelines varies, but the overall quality level is satisfactory. Improving the low-quality areas of sepsis guidelines, attempting to resolve existing problems and controversies, and improving the quality of research evidence will be effective ways for developers to upgrade sepsis guidelines., Competing Interests: Declarations. Ethics approval and consent to participate: Not applicable. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2025. The Author(s).)
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- 2025
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3. Chick Early Amniotic Fluid Alleviates Dextran-Sulfate-Sodium-Induced Colitis in Mice via T-Cell Receptor Pathway.
- Author
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Chen F, Zhao Y, Dai Y, Sun N, Gao X, Yin J, Zhou Z, and Wu KJ
- Abstract
Ulcerative colitis (UC) is a chronic immune disease that is difficult to cure. We recently found that chick early amniotic fluid (ceAF) has notable anti-inflammatory and antioxidative properties, through its active components. This study demonstrates the potential of ceAF as a protective agent against UC. UPLC-MS mass spectrometry identified key components of ceAF, including various fatty acids and nucleosides. In vitro, ceAF improved viability in DSS-induced Caco-2 cells, reduced pro-inflammatory cytokines IL-1β and TNF-α, and increased the anti-inflammatory cytokine IL-10. It also upregulated the tight junction proteins ZO-1 and occludin. In DSS-induced UC mice, ceAF treatment alleviated weight loss, colon shortening, and disease activity, while improving histopathology, crypt depth, and colonic fibrosis. Mechanistically, ceAF's anti-inflammatory effects are mediated by inhibiting the overactivation of TCR signaling through the LCK/ZAP70/LAT pathway. Our findings suggest that ceAF could be a valuable nutritional intervention for UC, potentially enhancing existing functional foods aimed at managing this condition.
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- 2025
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4. Interrogation of the interplay between DNA N6-methyladenosine (6mA) and hypoxia-induced chromatin accessibility by a randomized empirical model (EnrichShuf).
- Author
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Lai JC, Hsu KW, and Wu KJ
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- Humans, Methyltransferases metabolism, Methyltransferases genetics, Cell Hypoxia genetics, Histones metabolism, DNA Methylation, DNA metabolism, DNA genetics, Chromatin Immunoprecipitation Sequencing, Epigenesis, Genetic, Hypoxia metabolism, Hypoxia genetics, Cell Line, Adenosine analogs & derivatives, Adenosine metabolism, Chromatin metabolism
- Abstract
N 6-Methyladenosine (6mA) is an epigenetic mark in eukaryotes regulating development, stress response and tumor progression. METTL4 has been reported as a 6mA methyltransferase induced by hypoxia. The detection and annotation of 6mA signals in mammalian cells have been hampered by the techniques and analytical methods developed so far. Here we developed a 6mA-ChIP-exo-5.1-seq to improve the sensitivity of detecting 6mAs in human cell lines. Furthermore, an EnrichShuf analysis tool for comprehensively comparing 6mA-ChIP-exo-5.1-seq, ATAC-seq, ChIP-seq and RNA-seq has been developed to annotate the functional relevance of 6mA in relation to chromatin accessibility and histone marks. Using a hypoxia-induced 6mA induction system as a model, we showed that hypoxic 6mA signals positively correlated with accessible chromatin regions. These 6mA signals correlate with their regulation by METTL4 under hypoxia, consistent with previous results. 6mAs also co-exist with H3K4me1, a histone mark for enhancers. Further analysis of enhancers using an ABC (active-by-contact) model shows that hypoxia-inducible factor-1α-induced H3K4me3 surrounds the 6mA/H3K4me1 site to augment active enhancers. These results suggest that correlation between 6mA and accessible chromatin regions plays a significant role in enhancer-promoter interactions during hypoxia-induced gene expression., (© The Author(s) 2024. Published by Oxford University Press on behalf of Nucleic Acids Research.)
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- 2024
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5. Aculeaquamides B and C, two new paraherquamides from the co-culture of Aspergillus aculeatinus WHUF0198 and Penicillium sp. DM27.
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Edjah PP, Lu MF, Chen WC, Wu J, Zhong YT, Li M, Chen Q, Zhu KK, Yuan RY, Tao WX, Wu KJ, and Cai YS
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- Molecular Structure, Animals, Coculture Techniques, Rats, China, Sesquiterpenes pharmacology, Sesquiterpenes isolation & purification, Penicillium chemistry, Aspergillus chemistry
- Abstract
Two new paraherquamides (PHQs) namely aculeaquamides B and C (1 and 2), along with four known PHQs (3-6), were isolated from the co-culture of marine fungus Aspergillus aculeatinus WHUF0198 and mangrove-associated fungus Penicillium sp. DM27. Compound 1 represents the first PHQ derivative featuring an uncommon 7/6/5/5/6/5 hexacyclic system. The structures of the isolated compounds were elucidated based on exhaustive NMR spectroscopy measurement and HRESIMS data. The absolute configurations of new compounds were determined by TDDFT-ECD calculations. Compound 3 demonstrated suppression of AngII-induced cardiac hypertrophy while exhibiting relatively low cardiomyocyte toxicity., Competing Interests: Declaration of competing interest The authors declare no conflicts of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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6. An iridium(III) complex-based luminogenic probe for high-throughput screening of hydrogen sulfide donors in living cells.
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Wu KJ, Sun W, Sun JM, Lu C, Sun N, Leung CH, Li Y, and Wu C
- Abstract
The scarcity of suitable high-throughput screening technology for hydrogen sulfide (H
2 S) donors has hampered the discovery of H2 S donors. In this study, a long-lived cyclometalated iridium complex was rationally designed as a mitochondria-targeted H2 S probe to monitor the real-time dynamic change of H2 S. By using the time-resolved emission spectroscopy (TRES) technique, an anti-interference high-throughput screening system was developed to monitor H2 S in living cells with decreased false negative results. As a proof-of-concept, three natural products were identified as potential H2 S donors from a natural product library using the developed TRES probe. Notably, the discovery of allicin and diallyl trisulfide demonstrated the feasibility of this screening platform, while garlic-derived allyl methyl sulfide was explored as a H2 S donor candidate. The results were further validated by a commercial assay. We anticipate this high-throughput platform could facilitate the discovery of H2 S donors by discriminating the endogenous interfering fluorescence from biological systems., Competing Interests: Competing interests The authors declare no competing interests., (© 2024. The Author(s).)- Published
- 2024
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7. Response to Hasan et al's "Dupilumab therapy for atopic dermatitis is associated with increased risk of cutaneous T cell lymphoma: A retrospective cohort study".
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Wu KJ and Wei KC
- Abstract
Competing Interests: Conflicts of interest None disclosed.
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- 2024
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8. Quality problems in clinical practice guidelines and guideline appraisal studies: Should we tolerate or eradicate?
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Yang GX, Dou SQ, Liu XB, Que T, Tang Y, Wang X, Yan LZ, Zhou LN, Jin CB, Wang Y, Wang Q, Wu KJ, and Liu WJ
- Abstract
Background: Appraisal of Guidelines for Research and Evaluation (AGREE) II instrument have been widely used by scholars around the world to assess the methodological quality of clinical practice guidelines (CPGs). We sought to identify items or domains that are commonly scored low in the assessment, and to systematically review the issues that emerged when evaluators used the AGREE II tool for guideline quality assessment., Methods: A systematic search was conducted to identify articles published in medically relevant databases from 2022 to 2023 regarding the use of the AGREE II tool for the assessment of CPGs. We extracted six quality domains and overall quality assessment data of CPGs included in the literature, and processed the data using descriptive statistical analysis, difference analysis, regression analysis, and correlation analysis. A seven-point Likert scale was used to assess the reporting quality of the included articles., Results: 151 relevant publications were identified, including 2081 guidelines published between 1990 and 2022. The results of the regression analysis showed a statistically significant impact of all domains on overall guideline quality (p < 0.001; R
2 = 0.777). Domain 1, 2, 3, 4, and 6 scores differed significantly over time (p < 0.001) and were increasing. The score was good for Domain 4 (median 78.00 [IQR: 62.75-89.00]; mean 74.34 [SD 18.85]) and Domain 1 (median 78.00 [IQR: 61.00-90.00]; mean 73.57 [SD 21.12]). Scores were generic for Domain 6 (median 58.33 [IQR: 25.00-83.33]; mean 53.98 [SD 34.13]), Domain 2 (median 53.00 [IQR: 33.30-72.10]; mean 53.30 [SD 24.52]) and Domain 3 (median 51.00 [IQR: 26.02-73.00]; mean 50.44 [SD 27.19]). The score was poor for Domain 5 (median 36.20 [IQR: 20.20-58.32]; mean 40.21 [SD 24.90]). In addition, the quality evaluation results of the included articles showed that 33.1% were evaluated as low and 11.9% as very low., Conclusions: AGREE II tools have facilitated the development of methodological quality for CPGs. Although the quality of CPGs has improved over time, some general low-quality problems still exist, and solving these problems will be an effective way for developers to upgrade the quality of guidelines. In addition, addressing critical issues in the evaluation of guidelines to present high-quality study reports would be another way to guide guideline development., (© 2024 John Wiley & Sons Ltd.)- Published
- 2024
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9. Intensive chemotherapy versus standard chemotherapy among patients with high risk, operable, triple negative breast cancer based on integrated mRNA-lncRNA signature (BCTOP-T-A01): randomised, multicentre, phase 3 trial.
- Author
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He M, Jiang YZ, Gong Y, Fan L, Liu XY, Liu Y, Tang LC, Mo M, Hou YF, Di GH, Liu GY, Yu KD, Wu J, Yan X, Zeng XH, Fu DY, Song CG, Zhuang ZG, Wu KJ, Wang J, Wang ZH, and Shao ZM
- Subjects
- Humans, Female, Middle Aged, Adult, Chemotherapy, Adjuvant methods, Aged, Disease-Free Survival, Cisplatin administration & dosage, Cisplatin therapeutic use, Young Adult, Adolescent, China epidemiology, Risk Assessment, Triple Negative Breast Neoplasms drug therapy, Triple Negative Breast Neoplasms genetics, Triple Negative Breast Neoplasms mortality, Triple Negative Breast Neoplasms surgery, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Epirubicin administration & dosage, Cyclophosphamide therapeutic use, Cyclophosphamide administration & dosage, Docetaxel administration & dosage, Docetaxel therapeutic use, Gemcitabine, Deoxycytidine analogs & derivatives, Deoxycytidine therapeutic use, Deoxycytidine administration & dosage
- Abstract
Objective: To evaluate the feasibility of using a multigene signature to tailor individualised adjuvant therapy for patients with operable triple negative breast cancer., Design: Randomised, multicentre, open label, phase 3 trial., Setting: 7 cancer centres in China between 3 January 2016 and 17 July 2023., Participants: Female patients aged 18-70 years with early triple negative breast cancer after definitive surgery., Interventions: After risk stratification using the integrated signature, patients at high risk were randomised (1:1) to receive an intensive adjuvant treatment comprising four cycles of docetaxel, epirubicin, and cyclophosphamide followed by four cycles of gemcitabine and cisplatin (arm A; n=166) or a standard treatment of four cycles of epirubicin and cyclophosphamide followed by four cycles of docetaxel (arm B; n=170). Patients at low risk received the same adjuvant chemotherapy as arm B (arm C; n=168)., Main Outcome Measures: The primary endpoint was disease-free survival in the intention-to-treat analysis for arm A versus arm B. Secondary endpoints included disease-free survival for arm C versus arm B, recurrence-free survival, overall survival, and safety., Results: Among the 504 enrolled patients, 498 received study treatment. At a median follow-up of 45.1 months, the three year disease-free survival rate was 90.9% for patients in arm A and 80.6% for patients in arm B (hazard ratio 0.51, 95% confidence interval (CI) 0.28 to 0.95; P=0.03). The three year recurrence-free survival rate was 92.6% in arm A and 83.2% in arm B (hazard ratio 0.50, 95% CI 0.25 to 0.98; P=0.04). The three year overall survival rate was 98.2% in arm A and 91.3% in arm B (hazard ratio 0.58, 95% CI 0.22 to 1.54; P=0.27). The rates of disease-free survival (three year disease-free survival 90.1% v 80.6%; hazard ratio 0.57, 95% CI 0.33 to 0.98; P=0.04), recurrence-free survival (three year recurrence-free survival 94.5% v 83.2%; 0.42, 0.22 to 0.81; P=0.007), and overall survival (three year overall survival 100% v 91.3%; 0.14, 0.03 to 0.61; P=0.002) were significantly higher in patients in arm C than in those in arm B with the same chemotherapy regimen. The incidence of grade 3-4 treatment related adverse events were 64% (105/163), 51% (86/169), and 54% (90/166) for arms A, B, and C, respectively. No treatment related deaths occurred., Conclusions: The multigene signature showed potential for tailoring adjuvant chemotherapy for patients with operable triple negative breast cancer. Intensive regimens incorporating gemcitabine and cisplatin into anthracycline/taxane based therapy significantly improved disease-free survival with manageable toxicity., Trial Registration: ClinicalTrials.gov NCT02641847., Competing Interests: Competing interests: All authors have completed the ICMJE uniform disclosure form at https://www.icmje.org/disclosure-of-interest/ and declare: support from the National Key Research and Development Project of China, National Natural Science Foundation of China, Science and Technology Commission of Shanghai Municipality, Shanghai Key Laboratory of Breast Cancer, SHDC Municipal Project for Developing Emerging and Frontier Technology in Shanghai Hospitals, and CSPC Pharmaceutical Co Ltd, Shijiazhuang, China, for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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10. Neuroprotective effects of psilocybin in a rat model of stroke.
- Author
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Yu SJ, Wu KJ, Wang YS, Bae E, Chianelli F, Bambakidis N, and Wang Y
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- Animals, Male, Cerebral Cortex drug effects, Cerebral Cortex metabolism, Cerebral Cortex pathology, Rats, Cells, Cultured, Synaptophysin metabolism, Stroke drug therapy, Stroke metabolism, Female, Microtubule-Associated Proteins, Psilocybin pharmacology, Rats, Sprague-Dawley, Neuroprotective Agents pharmacology, Disease Models, Animal, Infarction, Middle Cerebral Artery drug therapy, Neurons drug effects, Neurons metabolism, Neurons pathology, Brain-Derived Neurotrophic Factor metabolism
- Abstract
Background: Psilocybin is a psychedelic 5HT2A receptor agonist found in "magic mushrooms". Recent studies have indicated that 5HT2A agonists, such as dimethyltryptamine, given before middle cerebral artery occlusion (MCAo), improve staircase behavior, increased BDNF expression, and reduce brain infarction in stroke rats. The objective of this study is to determine the protective effect of psilocybin in cellular and animal models of stroke., Methods: Adult male and timed-pregnant Sprague-Dawley rats were used for this study. The neural protective effects of psilocybin were determined in primary rat cortical neurons and adult rats. Rats were subjected to a 60-min middle cerebral artery occlusion. Brain tissues were collected for histological and qRTPCR analysis., Results: Psilocybin reduced glutamate-mediated neuronal loss in rat primary cortical neuronal cultures. Psilocybin-mediated protection in culture was antagonized by the BDNF inhibitor ANA12. Pretreatment with psilocybin reduced brain infarction and neurological deficits in stroke rats. Early post-treatment with psilocybin improved locomotor behavior, upregulated the expression of MAP2 and synaptophysin, and down-regulated the expression of IBA1 in the stroke brain. ANA12 significantly attenuated psilocybin-mediated reduction in brain infarction and improvements in locomotor behavior., Conclusions: Psilocybin reduced brain infarction and improved locomotor behavior in stroke rats; the protective mechanisms involve regulating BDNF expression. Our data support a novel therapeutic approach of psilocybin in stroke., (© 2024. The Author(s).)
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- 2024
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11. An analysis of the clinical significance of the TKI-resistant gene ZNF687 for hepatocellular carcinoma patients.
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Zhang GL, Li JD, He JF, Wu KJ, Mo YY, Zhong SY, Wang XF, Wu FF, Qin YS, Zhao H, Huang ZG, Chen G, and He RQ
- Abstract
Background: Novel treatments such as monotherapy and combined immunotherapy significantly extend overall survival (OS) for hepatocellular carcinoma (HCC) patients, but HCC is susceptible to treatment resistance during long-term therapy. The resistance mechanism to targeted drugs in HCC remains ambiguous, making research on HCC drug resistance targets crucial for the development of precision medicine., Objectives: To investigate the transcriptional features, biological functions and potential clinical value of the tyrosine kinase inhibitor (TKI)-resistant gene ZNF687 in HCC., Material and Methods: The TKI-resistant genes of HCC were identified using clustered regularly interspaced short palindromic repeats (CRISPR) in vitro screening. Then, the dependence of HCC cell lines on ZNF687 was investigated in silico. We collected global mRNA datasets of HCC tissue, integrated the mRNA expression characteristics of ZNF687 in HCC and explored the impact of ZNF687 on HCC patient prognoses using the Kaplan-Meier method (in silico). The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analyses were then conducted, and a connectivity map and molecular docking technology were applied to find the underlying agent opposing ZNF687., Results: In vitro, the guide RNA corresponding to ZNF687 was weakly detected in HCC cells, and ZNF687 deficiency was found to inhibit growth in HCC cell lines. ZNF687 mRNA was overexpressed and had a high discriminatory ability for HCC in 2,975 HCC samples, contrasting with 2,340 non-HCC samples. Moreover, an excessive ZNF687 transcript level was related to a worse overall survival (OS) prognosis. Histone modification, spliceosome, transcription coregulator activity, and nucleocytoplasmic transport were the most significant pathways for ZNF687 differential-related gene enrichment. Chaetocin was found to be a candidate compound and presented a strong affinity to ZNF687., Conclusions: ZNF687 represents a TKI-resistant and growth-dependent gene for HCC, the overexpression of which indicates poor OS for HCC patients. Additionally, ZNF687 is expected to be a druggable target for overcoming TKI resistance, and chaetocin may be a candidate therapeutic compound for ZNF687.
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- 2024
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12. The enhancing effects of selenomethionine on harmine in attenuating pathological cardiac hypertrophy via glycolysis metabolism.
- Author
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Chen Q, Wang WY, Xu QY, Dai YF, Zhu XY, Chen ZY, Sun N, Leung CH, Gao F, and Wu KJ
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- Animals, Mice, Male, Disease Models, Animal, Mice, Inbred C57BL, Myocytes, Cardiac metabolism, Myocytes, Cardiac drug effects, Myocytes, Cardiac pathology, Angiotensin II, Drug Synergism, Signal Transduction drug effects, Harmine pharmacology, Cardiomegaly metabolism, Cardiomegaly drug therapy, Cardiomegaly pathology, Cardiomegaly chemically induced, Glycolysis drug effects, Selenomethionine pharmacology
- Abstract
Pathological cardiac hypertrophy, a common feature in various cardiovascular diseases, can be more effectively managed through combination therapies using natural compounds. Harmine, a β-carboline alkaloid found in plants, possesses numerous pharmacological functions, including alleviating cardiac hypertrophy. Similarly, Selenomethionine (SE), a primary organic selenium source, has been shown to mitigate cardiac autophagy and alleviate injury. To explores the therapeutic potential of combining Harmine with SE to treat cardiac hypertrophy. The synergistic effects of SE and harmine against cardiac hypertrophy were assessed in vitro with angiotensin II (AngII)-induced hypertrophy and in vivo using a Myh6
R404Q mouse model. Co-administration of SE and harmine significantly reduced hypertrophy-related markers, outperforming monotherapies. Transcriptomic and metabolic profiling revealed substantial alterations in key metabolic and signalling pathways, particularly those involved in energy metabolism. Notably, the combination therapy led to a marked reduction in the activity of key glycolytic enzymes. Importantly, the addition of the glycolysis inhibitor 2-deoxy-D-glucose (2-DG) did not further potentiate these effects, suggesting that the antihypertrophic action is predominantly mediated through glycolytic inhibition. These findings highlight the potential of SE and harmine as a promising combination therapy for the treatment of cardiac hypertrophy., (© 2024 The Author(s). Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd.)- Published
- 2024
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13. Global bibliometric mapping of the research trends in artificial intelligence-based digital pathology for lung cancer over the past two decades.
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Xiong DD, He RQ, Huang ZG, Wu KJ, Mo YY, Liang Y, Yang DP, Wu YH, Tang ZQ, Liao ZT, and Chen G
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Background and Objective: The rapid development of computer technology has led to a revolutionary transformation in artificial intelligence (AI)-assisted healthcare. The integration of whole-slide imaging technology with AI algorithms has facilitated the development of digital pathology for lung cancer (LC). However, there is a lack of comprehensive scientometric analysis in this field., Methods: A bibliometric analysis was conducted on 197 publications related to digital pathology in LC from 502 institutions across 39 countries, published in 97 academic journals in the Web of Science Core Collection between 2004 and 2023., Results: Our analysis has identified the United States and China as the primary research nations in the field of digital pathology in LC. However, it is important to note that the current research primarily consists of independent studies among countries, emphasizing the necessity of strengthening academic collaboration and data sharing between nations. The current focus and challenge of research related to digital pathology in LC lie in enhancing the accuracy of classification and prediction through improved deep learning algorithms. The integration of multi-omics studies presents a promising future research direction. Additionally, researchers are increasingly exploring the application of digital pathology in immunotherapy for LC patients., Conclusions: In conclusion, this study provides a comprehensive knowledge framework for digital pathology in LC, highlighting research trends, hotspots, and gaps in this field. It also provides a theoretical basis for the application of AI in clinical decision-making for LC patients., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)
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- 2024
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14. LncRNAs and asymmetric cell division: the epigenetic mechanisms.
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Chen HF and Wu KJ
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Asymmetric cell division (ACD) plays a pivotal role in development, tissue homeostasis, and stem cell maintenance. Emerging evidence suggests that long non-coding RNAs (lncRNAs) are key regulators of ACD, orchestrating the intricate molecular machinery that governs cell fate determination. This review summarizes current literature to elucidate the diverse roles of lncRNAs in modulating ACD across various biological contexts. The regulatory mechanisms of asymmetric cell division mediated by lncRNAs, including their interactions with protein effectors, epigenetic regulation, and subcellular localization are explored. Additionally, we discuss the implications of dysregulated lncRNAs in mediating ACD that lead to tumorigenesis. By integrating findings from diverse experimental models and cell types, this review provides insights into the multifaceted roles of lncRNAs in governing asymmetric cell division, shedding light on fundamental biological processes. Further research in this area may lead to the development of novel therapies targeting dysregulated lncRNAs to restore proper cell division and function. The knowledge of lncRNAs regulating ACD could potentially revolutionize the field of regenerative medicine and cancer therapy by targeting specific lncRNAs involved in ACD. By unraveling the complex interactions between lncRNAs and cellular processes, the potential novel opportunities for precision medicine approaches may be uncovered., Competing Interests: Declaration of Competing Interest The authors declare no competing interests., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2024
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15. Author Response: Comparison of Hemispheric Surgery Techniques for Pediatric Drug-Resistant Epilepsy: An Individual Patient Data Meta-Analysis.
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Chen JS, Harris WB, Wu KJ, Phillips HW, Tseng CH, Weil AG, and Fallah A
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- Humans, Child, Hemispherectomy methods, Neurosurgical Procedures methods, Drug Resistant Epilepsy surgery
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- 2024
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16. Peritendinous Submembrane Access Technique for Management of Acute Ruptures of the Achilles Tendon: A Retrospective Study of 249 Cases.
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Huang X, Liu JW, Jiang Y, Zhu HW, Hu XX, Wu KJ, Wang XN, and Zhang S
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- Humans, Retrospective Studies, Rupture surgery, Male, Female, Adult, Middle Aged, Young Adult, Aged, Achilles Tendon injuries, Achilles Tendon surgery, Tendon Injuries surgery, Minimally Invasive Surgical Procedures methods
- Abstract
Objective: Percutaneous repair is an alternative to open surgical repair of the Achilles tendon with comparable, functional results and low re-rupture and infection rates; however, sural nerve injury is a known complication. The purpose of this study is to design a new surgical procedure, the minimally invasive peritendinous submembrane access technique (MIS-PSAT). It offers optimal results, with excellent functional outcomes, and with minimal soft tissue complications and sural nerve injury., Methods: This retrospective study included 249 patients with acute closed Achilles tendon ruptures treated at our institution between 2009 and 2019. All patients underwent MIS-PSAT at our institution and were followed up for 8-48 months. Functional evaluation was based on the Achilles tendon total rupture score (ATRS) and the American Orthopedic Foot and Ankle Society Ankle-Hindfoot Scale (AOFAS-AHS), associated with local complications and isokinetic tests., Results: None of the patients had infection, necrosis, or sural nerve injury. Re-rupture occurred in two cases. The average times to return to work and sports was 10.4 and 31.6 weeks, respectively. The average ATRS and AOFAS-AHS scores were 90.2 and 95.7, respectively, with an excellent rate of 99.5%. Isokinetic tests showed that ankle function on the affected side was comparable with that on the healthy side (p > 0.05)., Conclusion: The MIS-PSAT for acute Achilles tendon rupture is easy to perform with few complications. Importantly, the surgical technique reduces the risk of sural nerve injuries. Patients have high postoperative satisfaction, low re-rupture rates, and muscle strength, and endurance can be restored to levels similar to those on the healthy side., (© 2024 The Authors. Orthopaedic Surgery published by Tianjin Hospital and John Wiley & Sons Australia, Ltd.)
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- 2024
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17. Glutamine supplementation improves the activity and immunosuppressive action of induced regulatory T cells in vitro and in vivo.
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Zhang L, Xu Z, Li Y, Wu KJ, Yu C, Zhu W, Sun DL, Zhu L, and Zhou J
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- Animals, Mice, Humans, Cells, Cultured, Cell Proliferation drug effects, Lymphocyte Activation drug effects, Disease Models, Animal, Apoptosis drug effects, Cell Differentiation drug effects, Immunosuppression Therapy, Cytokines metabolism, Glutamine pharmacology, T-Lymphocytes, Regulatory immunology, T-Lymphocytes, Regulatory drug effects, Graft vs Host Disease immunology
- Abstract
Background: Glutamine is crucial for the activation and efficacy of T cells, and may play a role in regulating the immune environment. This study aimed to investigate the potential role of glutamine in the activation and proliferation of induced regulatory T cells (iTregs)., Methods: CD4
+ CD45RA+ T cells were sorted from peripheral blood mononuclear cells and cultured to analyze iTreg differentiation. Glutamine was then added to the culture system to evaluate the effects of glutamine on iTregs by determining oxidative phosphorylation (OXPHOS), apoptosis, and cytokine secretion. Additionally, a humanized murine graft-versus-host disease (GVHD) model was constructed to confirm the efficacy of glutamine-treated iTregs in vivo., Results: After being cultured in vitro, glutamine significantly enhanced the levels of Foxp3, CTLA-4, CD39, CD69, IL-10, TGF-β, and Ki67 (CTLA-4, IL-10, TGF-β are immunosuppressive markers of iTregs) compared with that of the control iTregs (P < 0.05). Furthermore, the growth curve showed that the proliferative ability of glutamine-treated iTregs was better than that of the control iTregs (P < 0.01). Compared with the control iTregs, glutamine supplementation significantly increased oxygen consumption rates and ATP production (P < 0.05), significantly downregulated Annexin V and Caspase 3, and upregulated BCL2 (P < 0.05). However, GPNA significantly reversed the effects of glutamine (P < 0.05). Finally, a xeno-GVHD mouse model was successfully established to confirm that glutamine-treated iTregs increased the mice survival rate, delayed weight loss, and alleviated colon injury., Conclusion: Glutamine supplementation can improve the activity and immunosuppressive action of iTregs, and the possible mechanisms by which this occurs are related to cell proliferation, apoptosis, and OXPHOS., (Copyright © 2023. Published by Elsevier B.V.)- Published
- 2024
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18. Extraneuraxial pancreatic hemangioblastoma in a patient with tuberous sclerosis.
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Perez RL, Wu KJ, and Nguyen BD
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- Humans, Tomography, X-Ray Computed, Hemangioblastoma surgery, Hemangioblastoma complications, Hemangioblastoma pathology, Pancreatic Neoplasms surgery, Pancreatic Neoplasms pathology, Pancreatic Neoplasms complications, Tuberous Sclerosis complications, Tuberous Sclerosis pathology
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- 2024
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19. Protection of Gueichih-Fuling-Wan on cerebral ischemia-induced brain injury in rodents is mediated by trans-cinnamaldehyde via inhibition of neuroinflammation and apoptosis.
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Chen YF, Wu KJ, Kuo CC, and Tsai HY
- Abstract
Background: Stroke is the leading cause of mortality and morbidity worldwide, and an effective therapeutic strategy for the prevention of patients with cerebral ischemia induced brain injury is lacking. Traditional Chinese medicine with neuroprotective activities might be beneficial and provide alternative therapeutic opportunities for cerebral ischemia., Purposes: This study aimed to evaluate the neuroprotection and possible mechanisms of Gueichih-Fuling-Wan (GFW), its' constitutive herbs, and their active compounds on cerebral ischemia/reperfusion (I/R)-induced brain injury in rodents., Methods: Various doses of extracts (0.25, 0.5, and 1.0 g/kg) of GFW and five constituent herbs ( Cinnamomi Cortex , CC; Poria cocos , PC; Paeonia lactifloa , PL; Paeonia suffruticosa , PS and Prunus perisica , PP) were orally administered. Different doses of active compounds (0.5, 1.0, and 2.0 mg/kg) of GFW such as cinnamaldehyde, cinnamic acid (from CC), paeoniflorin (from PL), and paeonol (from PS) were intraperitoneally administered. Their effects on cerebral ischemia/ reperfusion (I/R)induced brain injury in rodents were evaluated., Results: GFW, its' constituent herbs, and the active compounds reduced the infarct area dose-dependently (***P < 0.001). Cinnamaldehyde showed the most significant reduction (***P < 0.001). Therefore, trans-cinnamaldehyde (TCA) was further used to evaluate the neuroprotective mechanism of the I/R-induced brain injury. TCA (10, 20, 30 mg/ kg, p.o.) showed an inhibitory effect of I/R-induced brain damage in mice in a dose-dependent manner. Besides, GFW and TCA dose-dependently reduced the COX-2 protein expression level, and TCA reduced the TUNEL (+) apoptosis. TCA dose-dependently increased the pro-survival NR2A and Bcl-2 protein expression level and decreased the pro-apoptotic NR2B and cytochrome c , caspase 9, and caspase 3 expression (***P < 0.001)., Conclusion: The above data revealed that GFW, its' constituent herbs, and active compounds protected against I/R-induced brain injury in rodents. TCA from CC might participate in GFW protecting against cerebral ischemia-induced brain injury by inhibiting neuroinflammation and apoptosis., Competing Interests: Conflicts of interest: The authors declare no conflicts of interest for this work., (© the Author(s).)
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- 2024
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20. Design and Evaluation of ZD06519, a Novel Camptothecin Payload for Antibody Drug Conjugates.
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Petersen ME, Brant MG, Lasalle M, Das S, Duan R, Wong J, Ding T, Wu KJ, Siddappa D, Fang C, Zhang W, Wu AML, Hirkala-Schaefer T, Garnett GAE, Fung V, Yang L, Hernandez Rojas A, Lawn SO, Barnscher SD, Rich JR, and Colombo R
- Subjects
- Animals, Humans, Mice, Cell Line, Tumor, Drug Design, Female, Rats, Camptothecin pharmacology, Camptothecin chemistry, Immunoconjugates pharmacology, Immunoconjugates chemistry, Xenograft Model Antitumor Assays
- Abstract
In recent years, the field of antibody drug conjugates (ADC) has seen a resurgence, largely driven by the clinical benefit observed in patients treated with ADCs incorporating camptothecin-based topoisomerase I inhibitor payloads. Herein, we present the development of a novel camptothecin ZD06519 (FD1), which has been specifically designed for its application as an ADC payload. A panel of camptothecin analogs with different substituents at the C-7 and C-10 positions of the camptothecin core was prepared and tested in vitro. Selected compounds spanning a range of potency and hydrophilicity were elaborated into drug-linkers, conjugated to trastuzumab, and evaluated in vitro and in vivo. ZD06519 was selected on the basis of its favorable properties as a free molecule and as an antibody conjugate, which include moderate free payload potency (∼1 nmol/L), low hydrophobicity, strong bystander activity, robust plasma stability, and high-monomeric ADC content. When conjugated to different antibodies using a clinically validated MC-GGFG-based linker, ZD06519 demonstrated impressive efficacy in multiple cell line-derived xenograft models and noteworthy tolerability in healthy mice, rats, and non-human primates., (©2024 The Authors; Published by the American Association for Cancer Research.)
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- 2024
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21. Application of Laennec extrathecal blockade combined with indocyanine green fluorescence imaging in laparoscopic anatomic hepatectomy.
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Yang Y, Yu CY, Lin F, Sun DL, Wu KJ, Cai HH, Shi LQ, and Zhu Q
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- Humans, Hepatectomy methods, Indocyanine Green, Optical Imaging methods, Laparoscopy methods, Liver Neoplasms diagnostic imaging, Liver Neoplasms surgery, Liver Neoplasms pathology
- Abstract
Objective: To investigate the safety and application value of combining Laennec extracapsular occlusion with ICG fluorescence imaging in laparoscopic anatomic hepatectomy., Methods: Complete laparoscopic dissection was performed outside the Laennec sheath, blocking Glisson's pedicle of the corresponding liver segment or lobe. An appropriate amount of indocyanine green (ICG) dye was intravenously injected, and the boundary line between the pre-cut liver segment and liver lobe was identified using fluorescence laparoscopy. Complete resection of the liver segment or lobe was performed based on anatomical markers. Clinical data, including operation time, intraoperative blood loss, postoperative hospital stay, and postoperative complications, were collected., Results: A total of 14 cases were included in the study, including seven cases of primary liver cancer, three cases of metastatic liver cancer, three cases of intrahepatic bile duct calculi, and one case of hepatic hemangioma. All 14 patients underwent anatomic hepatectomy under fluorescent laparoscopy, with four cases involving the right liver, seven cases involving the left liver, two cases involving the right anterior lobe, and one case involving the right posterior lobe., Conclusion: Combining laparoscopic follow-up of the Laennec membrane with Glisson outer sheath block and intraoperative ICG fluorescence imaging provides real-time guidance for locating the resection boundaries during anatomic hepatectomy. This approach helps in controlling intraoperative bleeding, reducing operation time, and ensuring high safety. It holds significant value in clinical application., (© 2024 The Authors. ANZ Journal of Surgery published by John Wiley & Sons Australia, Ltd on behalf of Royal Australasian College of Surgeons.)
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- 2024
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22. TM9SF1 promotes bladder cancer cell growth and infiltration.
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Wei L, Wang SS, Huang ZG, He RQ, Luo JY, Li B, Cheng JW, Wu KJ, Zhou YH, Liu S, Li SH, and Chen G
- Abstract
Background: Bladder cancer (BC) is the most common urological tumor. It has a high recurrence rate, displays tutor heterogeneity, and resists chemotherapy. Furthermore, the long-term survival rate of BC patients has remained unchanged for decades, which seriously affects the quality of patient survival. To improve the survival rate and prognosis of BC patients, it is necessary to explore the molecular mechanisms of BC development and progression and identify targets for treatment and intervention. Transmembrane 9 superfamily member 1 (TM9SF1), also known as MP70 and HMP70, is a member of a family of nine transmembrane superfamily proteins, which was first identified in 1997. TM9SF1 can be expressed in BC, but its biological function and mechanism in BC are not clear., Aim: To investigate the biological function and mechanism of TM9SF1 in BC., Methods: Cells at 60%-80% confluence were transfected with lentiviral vectors for 48-72 h to achieve stable TM9SF1 overexpression or silencing in three BC cell lines (5637, T24, and UM-UC-3). The effect of TM9SF1 on the biological behavior of BC cells was then investigated through CCK8, wound-healing assay, transwell assay, and flow cytometry., Results: Overexpression of TM9SF1 increased the in vitro proliferation, migration, and invasion of BC cells by promoting the entry of BC cells into the G2/M phase. Silencing of TM9SF1 inhibited in vitro proliferation, migration, and invasion of BC cells and blocked BC cells in the G1 phase., Conclusion: TM9SF1 may be an oncogene in BC., Competing Interests: Conflict-of-interest statement: All authors declare no conflict of interest for this article., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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23. PLK1 and its substrate MISP facilitate intrahepatic cholangiocarcinoma progression by promoting lymphatic invasion and impairing E-cadherin adherens junctions.
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Pan YR, Lai JC, Huang WK, Peng PH, Jung SM, Lin SH, Chen CP, Wu CE, Hung TH, Yu AL, Wu KJ, and Yeh CN
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- Humans, Adherens Junctions genetics, Adherens Junctions metabolism, Adherens Junctions pathology, Bile Ducts, Intrahepatic metabolism, Cadherins genetics, Cadherins metabolism, Bile Duct Neoplasms genetics, Bile Duct Neoplasms metabolism, Cholangiocarcinoma genetics, Cholangiocarcinoma metabolism
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Intrahepatic cholangiocarcinoma (iCCA) is a subtype of CCA and has a high mortality rate and a relatively poor prognosis. However, studies focusing on increased cell motility and loss of epithelial integrity during iCCA progression remain relatively scarce. We collected seven fresh tumor samples from four patients to perform RNA sequencing (RNA-seq) and assay for transposase-accessible chromatin using sequencing (ATAC-seq) to determine the transcriptome profile and chromatin accessibility of iCCA. The increased expression of cell cycle regulators, including PLK1 and its substrate MISP, was identified. Ninety-one iCCA patients were used to validate the clinical significance of PLK1 and MISP. The upregulation of PLK1 and MISP was determined in iCCA tissues. Increased expression of PLK1 and MISP was significantly correlated with tumor number, N stage, and lymphatic invasion in an iCCA cohort. Knockdown of PLK1 or MISP reduced trans-lymphatic endothelial migration and wound healing and affected focal adhesions in vitro. In cell‒cell junctions, MISP localized to adherens junctions and suppressed E-cadherin dimerization. PLK1 disrupted adherens junctions in a myosin-dependent manner. Furthermore, PLK1 and MISP promoted cell proliferation in vitro and tumorigenesis in vivo. In iCCA, PLK1 and MISP promote aggressiveness by increasing lymphatic invasion, tumor growth, and motility through the repression of E-cadherin adherens junctions., (© 2023. The Author(s).)
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- 2024
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24. A refined Uni-vector prime editing system improves genome editing outcomes in mammalian cells.
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Huang CH, Chiu SY, Chou YC, and Wu KJ
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- Animals, Humans, HeLa Cells, Mutation, Transfection, Mammals, Gene Editing, CRISPR-Cas Systems genetics
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Prime editing is an advanced technology in CRISPR/Cas research with increasing numbers of improved methodologies. The original multi-vector method hampers the efficiency and precision of prime editing and also has inherent difficulty in generating homozygous mutations in mammalian cells. To overcome these technical issues, we developed a Uni-vector prime editing system, wherein the major components for prime editing were constructed in all-in-one plasmids, pPE3-pPuro and pePEmax-pPuro. The Uni-vector prime editing plasmids enhance the editing efficiency of prime editing and improved the generation of homozygous mutated mammalian cell lines. The editing efficiency is dependent of the transfection efficiency. Remarkably, the Uni-vector ePE5max system achieved an impressive editing rate approximately 79% in average, even in cell lines that are traditionally difficult to transfect, such as FaDu cell line. Furthermore, it resulted in a high frequency of homozygous knocked-in cells, with a rate of 99% in HeLa and 85% in FaDu cells. Together, our Uni-vector approach simplifies the delivery of editing components and improves the editing efficiency, especially in cells with low transfection efficiency. This approach presents an advancement in the field of prime editing., (© 2024 Wiley-VCH GmbH.)
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- 2024
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25. Recent discoveries of the role of histone modifications and related inhibitors in pathological cardiac hypertrophy.
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Wu KJ, Chen Q, Leung CH, Sun N, Gao F, and Chen Z
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- Humans, Protein Processing, Post-Translational, Epigenesis, Genetic, Heart, Histone Code, Cardiomegaly drug therapy, Cardiomegaly genetics
- Abstract
Pathological cardiac hypertrophy is a common response of the heart to various pathological stimuli. In recent years, various histone modifications, including acetylation, methylation, phosphorylation and ubiquitination, have been identified to have crucial roles in regulating chromatin remodeling and cardiac hypertrophy. Novel drugs targeting these epigenetic changes have emerged as potential treatments for pathological cardiac hypertrophy. In this review, we provide a comprehensive summary of the roles of histone modifications in regulating the development of pathological cardiac hypertrophy, and discuss potential therapeutic targets that could be utilized for its treatment., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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26. Puerarin Attenuates Cycloheximide-Induced Oxidative Damage and Memory-Consolidation Impairment in Rats.
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Wu KJ, Lien JC, and Wu CR
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- Rats, Animals, Cycloheximide adverse effects, Antioxidants, Memory Disorders chemically induced, Memory Disorders drug therapy, Oxidative Stress, Neurotransmitter Agents adverse effects, Memory Consolidation, Isoflavones
- Abstract
Background: Cycloheximide (CXM), an antifungal antibiotic, causes impaired memory consolidation as a side effect partially by disturbing the activities of the central catecholaminergic and cholinergic system. Some reports indicated that puerarin prevented memory impairment in various models in rodents. However, the protective effects of puerarin on the side effects of cycloheximide for memory consolidation impairment have not yet been investigated., Methods: The protective effects of puerarin on CXM-induced memory-consolidation impairment, and memory impairment produced by central administration of AF64A neurotoxin, were investigated using a passive avoidance task in rats. A combination of transmitter receptor agonists and antagonists was used to explore the effects of puerarin on nervous system function. The activity of antioxidant defense systems and neurotransmitter systems in the prefrontal cortex and hippocampus were assayed., Results: Systemic (25 and 50 mg/kg, i.p.) or central (5 and 10 µg/brain, i.c.v.) administration of puerarin attenuated CXM-induced memory-consolidation impairment produced by 1.5 mg/kg CXM (s.c.) in rats. The improvements produced by 50 mg/kg puerarin were blocked by cholinergic antagonists, a 5-HT2 receptor agonist, and an adrenergic receptor antagonist. Puerarin (only at 50 mg/kg, i.p.) reversed the CXM-induced alterations of the levels of norepinephrine in the prefrontal cortex and the levels of monoamines in the hippocampus. Puerarin also increased antioxidant-defense-system activities in the prefrontal cortex and hippocampus, which had been decreased by CXM., Conclusions: We suggested that the attenuating effects of puerarin on CXM-induced memory-consolidation impairment may be due to decrease oxidative damage and the normalition of the neurotransmitter function in the prefrontal cortex and hippocampus., Competing Interests: The authors declare no conflict of interest. Chi-Rei Wu is serving as one of the Editorial Board members of this journal. We declare that Chi-Rei Wu had no involvement in the peer review of this article and has no access to information regarding its peer review. Full responsibility for the editorial process for this article was delegated to Gernot Riedel., (© 2024 The Author(s). Published by IMR Press.)
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- 2024
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27. Epigenetic regulation of asymmetric cell division by the LIBR-BRD4 axis.
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Chen HF, Chang CT, Hsu KW, Peng PH, Lai JC, Hung MC, and Wu KJ
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- Asymmetric Cell Division, Cell Cycle Proteins genetics, Cell Cycle Proteins metabolism, Nuclear Proteins metabolism, Transcription Factors metabolism, Epigenesis, Genetic, RNA, Long Noncoding, Cell Division, Bromodomain Containing Proteins metabolism
- Abstract
Asymmetric cell division (ACD) is a mechanism used by stem cells to maintain the number of progeny. However, the epigenetic mechanisms regulating ACD remain elusive. Here we show that BRD4, a BET domain protein that binds to acetylated histone, is segregated in daughter cells together with H3K56Ac and regulates ACD. ITGB1 is regulated by BRD4 to regulate ACD. A long noncoding RNA (lncRNA), LIBR (LncRNA Inhibiting BRD4), decreases the percentage of stem cells going through ACD through interacting with the BRD4 mRNAs. LIBR inhibits the translation of BRD4 through recruiting a translation repressor, RCK, and inhibiting the binding of BRD4 mRNAs to polysomes. These results identify the epigenetic regulatory modules (BRD4, lncRNA LIBR) that regulate ACD. The regulation of ACD by BRD4 suggests the therapeutic limitation of using BRD4 inhibitors to treat cancer due to the ability of these inhibitors to promote symmetric cell division that may lead to tumor progression and treatment resistance., (© The Author(s) 2023. Published by Oxford University Press on behalf of Nucleic Acids Research.)
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- 2024
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28. Entecavir versus tenofovir for prevention of hepatitis B virus-associated hepatocellular carcinoma after curative resection: study protocol for a randomized, open-label trial.
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Pan LX, Wang YY, Li ZH, Luo JX, Wu KJ, Liu ZX, Wu PS, Chen K, Ma L, Fan XH, and Zhong JH
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- Humans, Hepatitis B virus, Tenofovir adverse effects, Carcinoma, Hepatocellular prevention & control, Carcinoma, Hepatocellular surgery, Liver Neoplasms prevention & control, Liver Neoplasms surgery
- Abstract
Background: Entecavir and tenofovir disoproxil fumarate (TDF) are standard first-line treatments to prevent viral reactivation and hepatocellular carcinoma (HCC) in individuals chronically infected with the hepatitis B virus (HBV), but the long-term efficacy of the two drugs remains controversial. Also unclear is whether the drugs are effective at preventing viral reactivation or HCC recurrence after hepatectomy to treat HBV-associated HCC. This trial will compare recurrence-free survival, overall survival, viral indicators and adverse events in the long term between patients with HBV-associated HCC who receive entecavir or TDF after curative resection., Methods: This study is a randomized, open-label trial. A total of 240 participants will be randomized 1:1 into groups receiving TDF or entecavir monotherapy. The two groups will be compared in terms of recurrence-free and overall survival at 1, 3, and 5 years after surgery; adverse events; virological response; rate of alanine transaminase normalization; and seroreactivity at 24 and 48 weeks after surgery., Discussion: This study will compare long-term survival between patients with HBV-associated HCC who receive TDF or entecavir monotherapy. Numerous outcomes related to prognosis will be analyzed and compared in this study., Trial Registration: ClinicalTrials.gov NCT02650271. Registered on January 7, 2016., (© 2024. The Author(s).)
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- 2024
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29. Transplantation of Exosomes Derived From Human Wharton's Jelly Mesenchymal Stromal Cells Enhances Functional Improvement in Stroke Rats.
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Chiu YS, Wu KJ, Yu SJ, Wu KL, Hsieh CY, Chou YS, Chen KY, Wang YS, Bae EK, Hung TW, Lin SH, Lin CH, Hsu SC, Wang Y, and Chen YH
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- Animals, Male, Humans, Rats, Infarction, Middle Cerebral Artery therapy, Neurons metabolism, Disease Models, Animal, Recovery of Function, Exosomes metabolism, Exosomes transplantation, Mesenchymal Stem Cells cytology, Mesenchymal Stem Cells metabolism, Wharton Jelly cytology, Rats, Sprague-Dawley, Mesenchymal Stem Cell Transplantation methods, Stroke therapy
- Abstract
Cerebral ischemic stroke is a major cerebrovascular disease and the leading cause of adult disability. We and others previously demonstrated that transplantation of human Wharton's jelly mesenchymal stromal cells (WJ-MSCs) attenuated neuronal damage and promoted functional improvement in stroke animals. This study aimed to investigate the protective effects of human WJ-MSC exosome (Exo) transplant in cellular and rat models of cerebral stroke. Administration of Exo significantly antagonized glutamate-mediated neuronal loss and terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-X nick end labeling (TUNEL) in rat primary cortical neuronal cultures. Adult male rats underwent a 60-min middle cerebral artery occlusion (MCAo); Exo or vehicle was injected through the tail vein 5-10 min after the MCAo. Two days later, the rats underwent a series of behavioral tests. Stroke rats receiving Exo developed a significant improvement in locomotor function and forelimb strength while reductions in body asymmetry and Bederson's neurological score. After the behavioral test, brain tissues were harvested for histological and quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) analyses. Animals receiving Exo had less infarction volume, measured by 2,3,5-triphenyl tetrazolium chloride (TTC) staining. Transplantation of Exo increased the expression of protective neurotrophic factors (BMP7, GDNF) and anti-apoptotic factors (Bcl2, Bcl-xL) in the ischemic brain. These findings suggest that early post-treatment with WJ-MSC Exo, given non-invasively through the vein, improved functional recovery and reduced brain damage in the stroke brain., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Y-SC, K-LW, C-YH, Y-SC, and K-YC are employees of YJ Biotechnology Co. Ltd. YW is a member of the editorial board of the journal of Cell Transplantation. The authors, including K-JW, S-JY, Y-SW, E-KB, T-WH, S-HL, C-HL, S-CH, and Y-HC, declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. The funding agencies were not involved in the writing of this manuscript or the decision to submit it for publication.
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- 2024
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30. Pyroptosis in neurodegenerative diseases: from bench to bedside.
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Wu KJ, Wang WR, Cheng QH, Li H, Yan WZ, Zhou FR, and Zhang RJ
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- Humans, Pyroptosis, Drug Development, Neurodegenerative Diseases drug therapy, Neurodegenerative Diseases metabolism, Parkinson Disease metabolism
- Abstract
The central nervous system regulates all aspects of physiology to some extent. Neurodegenerative diseases (NDDs) lead to the progressive loss and dysfunction of neurons, which are particularly evident in Alzheimer's disease, Parkinson's disease, and many other conditions. NDDs are multifactorial diseases with complex pathogeneses, and there has been a rapid increase in the prevalence of NDDs. However, none of these diseases can be cured, making the development of novel treatment strategies an urgent necessity. Numerous studies have indicated how pyroptosis induces inflammation and affects many aspects of NDD. Therefore, components related to pyroptosis are potential therapeutic candidates and are attracting increasing attention. Here, we review the role of pyroptosis in the pathogenesis of NDDs and potential treatment options. Additionally, several of the current drugs and relevant inhibitors are discussed. Through this article, we provide theoretical support for exploring new therapeutic targets and updating clinical treatment strategies for NDDs. Notably, pyroptosis, a recently widely studied mode of cell death, is still under-researched compared to other traditional forms of cell death. Moreover, the focus of research has been on the onset and progression of NDDs, and the lack of organ-specific target discovery and drug development is a common problem for many basic studies. This urgent problem requires scientists and companies worldwide to collaborate in order to develop more effective drugs against NDDs., (© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)
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- 2023
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31. Letter: Entecavir versus tenofovir on serum lipoprotein levels of hepatitis B virus-related hepatocellular carcinoma after curative hepatectomy.
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Su JY, Wu YL, Wu XL, Liu ZX, Wang YY, Li ZH, Luo JX, Wu KJ, and Zhong JH
- Subjects
- Humans, Tenofovir therapeutic use, Hepatitis B virus, Hepatectomy adverse effects, Antiviral Agents therapeutic use, Lipoproteins, Treatment Outcome, Carcinoma, Hepatocellular surgery, Carcinoma, Hepatocellular drug therapy, Liver Neoplasms surgery, Liver Neoplasms drug therapy, Hepatitis B, Chronic drug therapy
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- 2023
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32. Peptide immunization against the C-terminal of alpha-synuclein reduces locomotor activity in mice overexpressing alpha-synuclein.
- Author
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Chiu YS, Wu KJ, Yu SJ, Wu KL, Wang YS, Lin J, Chu CY, Chen S, Chen H, Hsu SC, Wang Y, and Chen YH
- Subjects
- Adult, Humans, Animals, Mice, Locomotion, Immunotherapy, Antibodies, Immunization, alpha-Synuclein genetics, Parkinson Disease therapy
- Abstract
Abnormal accumulation of alpha-synuclein (αSyn) in the remaining nigra dopaminergic neurons is a common neuropathological feature found in patients with Parkinson's disease (PD). Antibody-based immunotherapy has been considered a potential approach for PD treatment. This study aims to investigate the effectiveness of active immunization against αSyn in a mouse model of PD. Adult mice were immunized with or without a synthetic peptide containing the C-terminal residues of human αSyn and activation epitopes, followed by an intranigral injection of adeno-associated virus vectors for overexpressing human αSyn. Upon the peptide injection, αSyn-specific antibodies were raised, accompanied by degeneration of dopaminergic neurons and motor deficits. Furthermore, the induction of neuroinflammation was postulated by the elevation of astroglial and microglial markers in the immunized mice. Instead of lessening αSyn toxicity, this peptide vaccine caused an increase in the pathogenic species of αSyn. Our data demonstrated the potential adverse effects of active immunization to raise antibodies against the C-terminal fragment of αSyn. This drawback highlights the need for further investigation to weigh the pros and cons of immunotherapy in PD. Applying the αSyn C-terminal peptide vaccine for PD treatment should be cautiously exercised. This study provides valuable insights into the intricate interplay among immune intervention, αSyn accumulation, and neurodegeneration., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Chiu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2023
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33. Comparison of Hemispheric Surgery Techniques for Pediatric Drug-Resistant Epilepsy: An Individual Patient Data Meta-analysis.
- Author
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Chen JS, Harris WB, Wu KJ, Phillips HW, Tseng CH, Weil AG, and Fallah A
- Subjects
- Child, Humans, Treatment Outcome, Seizures complications, Drug Resistant Epilepsy surgery, Epilepsy etiology, Hemispherectomy adverse effects
- Abstract
Background and Objectives: Hemispheric surgery effectively treats unihemispheric pediatric drug-resistant epilepsy (DRE) by resecting and/or disconnecting the epileptic hemisphere. Modifications to the original anatomic hemispherectomy have generated multiple functionally equivalent, disconnective techniques for performing hemispheric surgery, termed functional hemispherotomy. While a myriad of hemispherotomy variants exist, all of them can be categorized according to the anatomic plane they are performed in, which includes vertical approaches at or near the interhemispheric fissure and lateral approaches at or near the Sylvian fissure. This meta-analysis of individual patient data (IPD) aimed to compare seizure outcomes and complications between the hemispherotomy approaches to better characterize their relative efficacy and safety in the modern neurosurgical treatment of pediatric DRE, given emerging evidence that outcomes may differ between them., Methods: CINAHL, Embase, PubMed, and Web of Science were searched from inception to September 9, 2020, for studies reporting IPD from pediatric patients with DRE who underwent hemispheric surgery. Outcomes of interest were seizure freedom at last follow-up, time-to-seizure recurrence, and complications including hydrocephalus, infection, and mortality. The χ
2 test compared the frequency of seizure freedom and complications. Multivariable mixed-effects Cox regression controlling for predictors of seizure outcome was performed on propensity score-matched patients to compare time-to-seizure recurrence between approaches. Kaplan-Meier curves were made to visualize differences in time-to-seizure recurrence., Results: Fifty-five studies reporting on 686 unique pediatric patients treated with hemispheric surgery were included for meta-analysis. Among the hemispherotomy subgroup, vertical approaches resulted in a greater proportion of seizure free patients (81.2% vs 70.7%, p = 0.014) than lateral approaches. While there were no differences in complications, lateral hemispherotomy had higher rates of revision hemispheric surgery due to incomplete disconnection and/or recurrent seizures than vertical hemispherotomy (16.3% vs 1.2%, p < 0.001). After propensity score matching, vertical hemispherotomy approaches independently conferred longer time-to-seizure recurrence than lateral hemispherotomy approaches (hazard ratio 0.44, 95% CI 0.19-0.98)., Discussion: Among functional hemispherotomy techniques, vertical hemispherotomy approaches confer more durable seizure freedom than lateral approaches without compromising safety. Future prospective studies are required to definitively determine whether vertical approaches are indeed superior and how it should influence clinical guidelines for performing hemispheric surgery., (© 2023 American Academy of Neurology.)- Published
- 2023
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34. Force field-inspired transformer network assisted crystal density prediction for energetic materials.
- Author
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Jin JX, Ren GP, Hu J, Liu Y, Gao Y, Wu KJ, and He Y
- Abstract
Machine learning has great potential in predicting chemical information with greater precision than traditional methods. Graph neural networks (GNNs) have become increasingly popular in recent years, as they can automatically learn the features of the molecule from the graph, significantly reducing the time needed to find and build molecular descriptors. However, the application of machine learning to energetic materials property prediction is still in the initial stage due to insufficient data. In this work, we first curated a dataset of 12,072 compounds containing CHON elements, which are traditionally regarded as main composition elements of energetic materials, from the Cambridge Structural Database, then we implemented a refinement to our force field-inspired neural network (FFiNet), through the adoption of a Transformer encoder, resulting in force field-inspired Transformer network (FFiTrNet). After the improvement, our model outperforms other machine learning-based and GNNs-based models and shows its powerful predictive capabilities especially for high-density materials. Our model also shows its capability in predicting the crystal density of potential energetic materials dataset (i.e. Huang & Massa dataset), which will be helpful in practical high-throughput screening of energetic materials., (© 2023. The Author(s).)
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- 2023
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35. Prosaposin PS18 reduces dopaminergic neurodegeneration in a 6-hydroxydopamine rat model of Parkinson's disease.
- Author
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Wu KJ, Hung TW, Wang YS, Chen YH, Bae EK, and Yu SJ
- Subjects
- Animals, Humans, Rats, Disease Models, Animal, Dopamine metabolism, Dopaminergic Neurons metabolism, Oxidopamine toxicity, Substantia Nigra metabolism, Neuroblastoma metabolism, Neuroprotective Agents pharmacology, Parkinson Disease metabolism, Saposins genetics, Saposins metabolism
- Abstract
Saposin and its precursor prosaposin are endogenous proteins with neurotrophic and anti-apoptotic properties. Prosaposin or its analog prosaposin-derived 18-mer peptide (PS18) reduced neuronal damage in hippocampus and apoptosis in stroke brain. Its role in Parkinson's disease (PD) has not been well characterized. This study aimed to examine the physiological role of PS18 in 6-hydroxydopamine (6-OHDA) cellular and animal models of PD. We found that PS18 significantly antagonized 6-OHDA -mediated dopaminergic neuronal loss and TUNEL in rat primary dopaminergic neuronal culture. In SH-SY5Y cells overexpressing the secreted ER calcium-monitoring proteins, we found that PS18 significantly reduced thapsigargin and 6-OHDA-mediated ER stress. The expression of prosaposin and the protective effect of PS18 were next examined in hemiparkinsonian rats. 6-OHDA was unilaterally administered to striatum. The expression of prosaposin was transiently upregulated in striatum on D3 (day 3) after lesioning and returned below the basal level on D29. The 6-OHDA-lesioned rats developed bradykinesia and an increase in methamphetamine-mediated rotation, which was antagonized by PS18. Brain tissues were collected for Western blot, immunohistochemistry, and qRTPCR analysis. Tyrosine hydroxylase immunoreactivity was significantly reduced while the expressions of PERK, ATF6, CHOP, and BiP were upregulated in the lesioned nigra; these responses were significantly antagonized by PS18. Taken together, our data support that PS18 is neuroprotective in cellular and animal models of PD. The mechanisms of protection may involve anti-ER stress., (© 2023. The Author(s).)
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- 2023
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36. Enhancing Molecular Representations Via Graph Transformation Layers.
- Author
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Ren GP, Wu KJ, and He Y
- Subjects
- Neural Networks, Computer
- Abstract
Molecular representation learning is an essential component of many molecule-oriented tasks, such as molecular property prediction and molecule generation. In recent years, graph neural networks (GNNs) have shown great promise in this area, representing a molecule as a graph composed of nodes and edges. There are increasing studies showing that coarse-grained or multiview molecular graphs are important for molecular representation learning. Most of their models, however, are too complex and lack flexibility in learning different granular information for different tasks. Here, we proposed a flexible and simple graph transformation layer (i.e., LineEvo), a plug-and-use module for GNNs, which enables molecular representation learning from multiple perspectives. The LineEvo layer transforms fine-grained molecular graphs into coarse-grained ones based on the line graph transformation strategy. Especially, it treats the edges as nodes and generates the new connected edges, atom features, and atom positions. By stacking LineEvo layers, GNNs can learn multilevel information, from atom-level to triple-atoms level and coarser level. Experimental results show that the LineEvo layers can improve the performance of traditional GNNs on molecular property prediction benchmarks on average by 7%. Additionally, we show that the LineEvo layers can help GNNs have more expressive power than the Weisfeiler-Lehman graph isomorphism test.
- Published
- 2023
- Full Text
- View/download PDF
37. Atmospheric environment and severe acute respiratory infections in Nanjing, China, 2018-2019.
- Author
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Wu KJ, Wu XQ, and Hong L
- Subjects
- Humans, China epidemiology, Particulate Matter toxicity, Particulate Matter analysis, Environmental Exposure adverse effects, Environmental Exposure analysis, Air Pollutants analysis, Air Pollution adverse effects, Air Pollution analysis, Pneumonia, Respiratory Tract Infections epidemiology, Respiratory Tract Infections chemically induced
- Abstract
The annual burden of severe acute respiratory infection (SARI) is enormous, and environmental factors may have a vital role in respiratory infections. This study aimed to investigate the potential effects of the atmospheric environment on SARI. A time-series analysis was performed on the relationship between atmospheric environment and 136,989 SARI cases by distributed lag non-linear model. Wind speed, PM
10 , PM2.5 , O3, and CO exhibited differential effects at a range of lag times or exposure ranges. Air pressure, temperature, and diurnal temperature range showed risk effects in the full range. The lag effect of high pollution was stronger, appeared earlier, and lasted longer than that of low pollution. Most environmental factors had a certain non-linear lag relationship with SARI. Low wind speed and high air pollution may be increasing risk factors for SARI.- Published
- 2023
- Full Text
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38. Nexus amongst environmental regulations, carbon emission intensity and technological innovation in China's construction industry.
- Author
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Wang L, Long X, Wu KJ, Tseng ML, and Cao Y
- Subjects
- Inventions, Efficiency, China, Economic Development, Carbon, Carbon Dioxide analysis, Construction Industry
- Abstract
China's construction industry confronts with the dilemma of carbon emissions in adjusting the environmental regulations. Many studies are neglected on discovering the potential nexus amongst environmental regulations (ERs), technological innovation (TI) and CEI (CEI) and ignores the relationships amongst TI for reducing CEI. To mitigate this gap, this study bridges institutional theory to integrate the practices in the construction industry. This study applies a panel dataset on the construction industry from 30 provinces during 2004-2018 and uses it with a two-step system-generalised method of moments for analysis. The proposed method enables the prevention of the interference of the heteroscedasticity problem and improves certain analytical efficiency. The results are as a guideline for policymakers in rechecking the policies and regulations adequacy. The findings indicate that (1) the forced emission reduction effect is proven by command-and-control and market-based ERs, which can inhibit CEI; (2) voluntary ERs have an inverted U-shaped nexus with CEI; in other words, the green paradox effect shifts to the forced emission reduction effect once the intensity of voluntary ERs increases; and (3) market-based and voluntary ERs reduce CEI effectively by using TI as the mediator in construction industry., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2023
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39. RP11-367G18.1 V2 enhances clear cell renal cell carcinoma progression via induction of epithelial-mesenchymal transition.
- Author
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Shao IH, Peng PH, Wu HH, Chen JL, Lai JC, Chang JS, Wu HT, Wu KJ, Pang ST, and Hsu KW
- Subjects
- Animals, Mice, Humans, Epithelial-Mesenchymal Transition genetics, Cell Line, Tumor, Cell Proliferation genetics, Hypoxia genetics, Chromatin, Cell Movement genetics, Gene Expression Regulation, Neoplastic, Tumor Microenvironment, Carcinoma, Renal Cell pathology, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, Carcinoma genetics, Kidney Neoplasms pathology
- Abstract
Purpose: Metastasis is the end stage of renal cell carcinoma (RCC), and clear cell renal cell carcinoma (ccRCC) is the most common malignant subtype. The hypoxic microenvironment is a common feature in ccRCC and plays an essential role in the regulation of epithelial-mesenchymal transition (EMT). Accumulating evidence manifests that long non-coding RNAs (lncRNAs) participate in RCC tumorigenesis and regulate hypoxia-induced EMT. Here, we identified a lncRNA RP11-367G18.1 induced by hypoxia, that was overexpressed in ccRCC tissues., Methods: A total of 216 specimens, including 149 ccRCC tumor samples and 67 related normal kidney parenchyma tissue samples, were collected. To investigate the biological fucntions of RP11.367G18.1 in ccRCC, migration, invasion, soft agar colony formation, xenograft tumorigenicity assays, and tail vein and orthotopic metastatic mouse models were performed. The relationship between RP11-367G18.1 and downstream signaling was analyzed utilizing reporter assay, RNA pull-down, chromatin immunopreciptation, and chromatin isolation by RNA purification assays., Results: Hypoxic conditions and overexpression of HIF-1α increased the level of RP11-367G18.1. RP11-367G18.1 induced EMT and enhanced cell migration and invasion through variant 2. Inhibition of RP11-367G18.1 variant 2 reversed hypoxia-induced EMT phenotypes. An in vivo study revealed that RP11-367G18.1 variant 2 was required for hypoxia-induced tumor growth and metastasis in ccRCC. Mechanistically, RP11-367G18.1 variant 2 interacted with p300 histone acetyltransferase to regulate lysine 16 acetylation on histone 4 (H4K16Ac), thus contributing to hypoxia-regulated gene expression. Clinically, RP11-367G18.1 variant 2 was upregulated in ccRCC tissues, particularly metastatic ccRCC tissues, and it is linked to poor overall survival., Conclusion: These findings demonstrate the prognostic value and EMT-promoting role of RP11-367G18.1 and indicate that this lncRNA may provide a therapeutic target for ccRCC., (© 2023 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.)
- Published
- 2023
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40. [Complications in repairing acute closed Achilles tendon rupture with micro-incision percutaneous Achilles tendon suture system].
- Author
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Jiang Y, Wang XN, Huang X, Chen GQ, Chen H, and Wu KJ
- Subjects
- Male, Humans, Female, Adolescent, Young Adult, Adult, Middle Aged, Retrospective Studies, Treatment Outcome, Rupture surgery, Sutures, Acute Disease, Suture Techniques, Achilles Tendon surgery, Achilles Tendon injuries, Tendon Injuries surgery
- Abstract
Objective: To analyze the causes, management and prevention of complications after micro-incision percutaneous repair of acute Achilles tendon rupture., Methods: A retrospective study indentyfied 279 patients with acute Achilles tendon rupture who underwent a mini-invasive procedure using the micro-incision percutaneous Achilles tendon suture system(MIPAS) from August 2008 to November 2019, including 269 males and 10 female;96 cases on the right side and 183 cases on the left side;aged from 18 to 64 years old with an average of (36.9±11.4 )years old. Surgery was performed 0.5 to 7 days with an average of(2.7±0.9 )days after injury. The incision-related complications, re-rupture, sural nerve injury, deep vein thrombosis, Achilles tendon adhesion, local pain, and ankle stiffness within 18 months after surgery were recorded, as well as the corresponding management and outcome, the causes and prevention measures were analyzed., Results: No superficial or deep infection was found in all patients, symptomatic Achilles tendon adhesion and ankle stiffness were not observed, delayed suture foreign-body reactions occurred in 2 cases (0.7%), re-rupture in 5 cases (1.8%), sural nerve injury in 3 cases (1.1%), 21 cases(7.5%) with skin invagination at puncture site, 2 cases (0.7%) with symptomatic vein thrombosis, and 45 cases (16.1%) of transient posterior medial malleolus pain. After individualized treatment, the function was good. American Orthopeadic Foot & Ankle Sciety(AOFAS) score was 93 to 100 with an average of(98.9±5.4) scores., Conclusion: Despite the occurrence of unique complications with MIPAS, it shows low functionally-related complications rates, such as incision-related complications, re-rupture, sural nerve injury, deep vein thrombosis and ankle stiffness.
- Published
- 2023
- Full Text
- View/download PDF
41. Herbal formula PM012 induces neuroprotection in stroke brain.
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Wu KJ, Wang YS, Hung TW, Bae EK, Chen YH, Kim CK, Yoo DW, Kim GS, and Yu SJ
- Subjects
- Rats, Animals, Neuroprotection, Rats, Sprague-Dawley, Disease Models, Animal, Brain metabolism, Infarction, Middle Cerebral Artery complications, Glutamates, Neuroprotective Agents pharmacology, Stroke etiology
- Abstract
Stroke is a major cause of long-term disability world-wide. Limited pharmacological therapy has been used in stroke patients. Previous studies indicated that herb formula PM012 is neuroprotective against neurotoxin trimethyltin in rat brain, and improved learning and memory in animal models of Alzheimer's disease. Its action in stroke has not been reported. This study aims to determine PM012-mediated neural protection in cellular and animal models of stroke. Glutamate-mediated neuronal loss and apoptosis were examined in rat primary cortical neuronal cultures. Cultured cells were overexpressed with a Ca++ probe (gCaMP5) by AAV1 and were used to examine Ca++ influx (Ca++i). Adult rats received PM012 before transient middle cerebral artery occlusion (MCAo). Brain tissues were collected for infarction and qRTPCR analysis. In rat primary cortical neuronal cultures, PM012 significantly antagonized glutamate-mediated TUNEL and neuronal loss, as well as NMDA-mediated Ca++i. PM012 significantly reduced brain infarction and improved locomotor activity in stroke rats. PM012 attenuated the expression of IBA1, IL6, and CD86, while upregulated CD206 in the infarcted cortex. ATF6, Bip, CHOP, IRE1, and PERK were significantly down-regulated by PM012. Using HPLC, two potential bioactive molecules, paeoniflorin and 5-hydroxymethylfurfural, were identified in the PM012 extract. Taken together, our data suggest that PM012 is neuroprotective against stroke. The mechanisms of action involve inhibition of Ca++i, inflammation, and apoptosis., Competing Interests: C.K.K., D.W.Y., and K.S.K. are employees of Mediforum Co., Ltd. The National Health Research Institute and Mediforum Co., Ltd. have a Cooperative Research and Development Agreement to develop PM012 as a treatment strategy for neurodegenerative disorders. The authors declare that this study received partial funding from Mediforum Co., Ltd., Korea. The authors further declare that Mediforum Co., Ltd. provided input into dose selection and study design as well as editorial input into the article. The funder was not involved in the writing of this article, or the decision to submit it for publication. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2023 Wu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
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42. Regulatory T cells (Tregs) in liver fibrosis.
- Author
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Wu KJ, Qian QF, Zhou JR, Sun DL, Duan YF, Zhu X, Sartorius K, and Lu YJ
- Abstract
The ability of the human liver to both synthesize extracellular matrix(ECM), as well as regulate fibrogenesis, are integral functions to maintaining homoeostasis. Chronic liver injury stimulates fibrogenesis in response to the imbalance between ECM accumulation and fibrosis resolution. Liver disease that induces fibrogenesis is associated with multiple risk factors like hepatitis infection, schistosomiasis, alcohol, certain drugs, toxicants and emerging aetiology like diabetes and obesity. The activation of hepatic stellate cells (HSCs), whose function is to generate and accumulate ECM, is a pivotal event in liver fibrosis. Simultaneously, HSCs selectively promote regulatory T-cells (Tregs) in an interleukin-2-dependent pattern that displays a dual relationship. On the one hand, Tregs can protect HSCs from NK cell attack, while on the other hand, they demonstrate an inhibitory effect on HSCs. This paper reviews the dual role of Tregs in liver fibrogenesis which includes its promotion of immunosuppression, as well as its activation of fibrosis. In particular, the balance between Tregs and the Th17 cell population, which produce interleukin (IL)-17 and IL-22, is explored to demonstrate their key role in maintaining homoeostasis and immunoregulation. The contradictory roles of Tregs in liver fibrosis in different immune microenvironments and molecular pathways need to be better understood if they are to be deployed to manage this disease., (© 2023. The Author(s).)
- Published
- 2023
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43. Force field-inspired molecular representation learning for property prediction.
- Author
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Ren GP, Yin YJ, Wu KJ, and He Y
- Abstract
Molecular representation learning is a crucial task to accelerate drug discovery and materials design. Graph neural networks (GNNs) have emerged as a promising approach to tackle this task. However, most of them do not fully consider the intramolecular interactions, i.e. bond stretching, angle bending, torsion, and nonbonded interactions, which are critical for determining molecular property. Recently, a growing number of 3D-aware GNNs have been proposed to cope with the issue, while these models usually need large datasets and accurate spatial information. In this work, we aim to design a GNN which is less dependent on the quantity and quality of datasets. To this end, we propose a force field-inspired neural network (FFiNet), which can include all the interactions by incorporating the functional form of the potential energy of molecules. Experiments show that FFiNet achieves state-of-the-art performance on various molecular property datasets including both small molecules and large protein-ligand complexes, even on those datasets which are relatively small and without accurate spatial information. Moreover, the visualization for FFiNet indicates that it automatically learns the relationship between property and structure, which can promote an in-depth understanding of molecular structure., (© 2023. The Author(s).)
- Published
- 2023
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44. Organ defects of the Usp7 K444R mutant mouse strain indicate the essential role of K63-polyubiquitinated Usp7 in organ formation.
- Author
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Wu HT, Lin YT, Chew SH, and Wu KJ
- Subjects
- Mice, Animals, Ubiquitin-Specific Peptidase 7 genetics, Ubiquitin-Specific Peptidase 7 metabolism, Ubiquitination, Mice, Mutant Strains, Kidney metabolism, Signal Transduction
- Abstract
Background: K63-linked polyubiquitination of proteins have nonproteolytic functions and regulate the activity of many signal transduction pathways. USP7, a HIF1α deubiquitinase, undergoes K63-linked polyubiquitination under hypoxia. K63-polyubiquitinated USP7 serves as a scaffold to anchor HIF1α, CREBBP, the mediator complex, and the super elongation complex to enhance HIF1α-induced gene transcription. However, the physiological role of K63-polyubiquitinated USP7 remains unknown., Methods: Using a Usp7
K444R point mutation knock-in mouse strain, we performed immunohistochemistry and standard molecular biological methods to examine the organ defects of liver and kidney in this knock-in mouse strain. Mechanistic studies were performed by using deubiquitination, immunoprecipitation, and quantitative immunoprecipitations (qChIP) assays., Results: We observed multiple organ defects, including decreased liver and muscle weight, decreased tibia/fibula length, liver glycogen storage defect, and polycystic kidneys. The underlying mechanisms include the regulation of protein stability and/or modulation of transcriptional activation of several key factors, leading to decreased protein levels of Prr5l, Hnf4α, Cebpα, and Hnf1β. Repression of these crucial factors leads to the organ defects described above., Conclusions: K63-polyubiquitinated Usp7 plays an essential role in the development of multiple organs and illustrates the importance of the process of K63-linked polyubiquitination in regulating critical protein functions., Competing Interests: Conflicts of interest The authors declare that they have no conflicts of interest., (Copyright © 2022 Chang Gung University. Published by Elsevier B.V. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
45. Treatment of hepatic venous system hemorrhage and carbon dioxide gas embolization during laparoscopic hepatectomy via hepatic vein approach.
- Author
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Qu Z, Wu KJ, Feng JW, Shi DS, Chen YX, Sun DL, Duan YF, Chen J, and He XZ
- Abstract
With the improvement of laparoscopic surgery, the feasibility and safety of laparoscopic hepatectomy have been affirmed, but intraoperative hepatic venous system hemorrhage and carbon dioxide gas embolism are the difficulties in laparoscopic hepatectomy. The incidence of preoperative hemorrhage and carbon dioxide gas embolism could be reduced through preoperative imaging evaluation, reasonable liver blood flow blocking method, appropriate liver-breaking device, controlled low-center venous pressure technology, and fine-precision precision operation. In the case of blood vessel rupture bleeding in the liver vein system, after controlling and reducing bleeding, confirm the type and severity of vascular damage in the liver and venous system, take appropriate measures to stop the bleeding quickly and effectively, and, if necessary, transfer the abdominal treatment in time. In addition, to strengthen the understanding, prevention and emergency treatment of severe CO2 gas embolism in laparoscopic hepatectomy is also the key to the success of surgery. This study aims to investigate the methods to deal with hepatic venous system hemorrhage and carbon dioxide gas embolization based on author's institutional experience and relevant literature. We retrospectively analyzed the data of 60 patients who received laparoscopic anatomical hepatectomy of hepatic vein approach for HCC. For patients with intraoperative complications, corresponding treatments were given to cope with different complications. After the operation, combined with clinical experience and literature, we summarized and discussed the good treatment methods in the face of such situations so that minimize the harm to patients as much as possible., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Qu, Wu, Feng, Shi, Chen, Sun, Duan, Chen and He.)
- Published
- 2023
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46. Association between per- and polyfluoroalkyl substances exposure and risk of diabetes: a systematic review and meta-analysis.
- Author
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Gui SY, Qiao JC, Xu KX, Li ZL, Chen YN, Wu KJ, Jiang ZX, and Hu CY
- Subjects
- Humans, Cross-Sectional Studies, Caprylates adverse effects, Endocrine Disruptors adverse effects, Diabetes Mellitus, Type 2 chemically induced, Diabetes Mellitus, Type 2 epidemiology, Fluorocarbons adverse effects, Alkanesulfonic Acids, Environmental Pollutants
- Abstract
Background: Emerging evidence suggests that per- and polyfluoroalkyl substances (PFAS) are endocrine disruptors and may contribute to the etiology of diabetes., Objectives: This study aimed to systematically review the epidemiological evidence on the associations of PFAS with mortality and morbidity of diabetes and to quantitatively evaluate the summary effect estimates of the existing literature., Methods: We searched three electronic databases for epidemiological studies concerning PFAS and diabetes published before April 1, 2022. Summary odds ratio (OR), hazard ratio (HR), or β and their 95% confidence intervals (CIs) were respectively calculated to evaluate the association between PFAS and diabetes using random-effects model by the exposure type, and dose-response meta-analyses were also performed when possible. We also assessed the risk of bias of the studies included and the confidence in the body of evidence., Results: An initial literature search identified 1969 studies, of which 22 studies were eventually included. The meta-analyses indicated that the observed statistically significant PFAS-T2DM associations were consistent in cohort studies, while the associations were almost non-significant in case-control and cross-sectional studies. Dose-response meta-analysis showed a "parabolic-shaped" association between perfluorooctanoate acid (PFOA) exposure and T2DM risk. Available evidence was rated with "low" risk of bias, and the level of evidence for PFAS and incident T2DM was considered "moderate"., Conclusions: Our findings suggest that PFAS exposure may increase the risk of incident T2DM, and that PFOA may exert non-monotonic dose-response effect on T2DM risk. Considering the widespread exposure, persistence, and potential for adverse health effects of PFAS, further cohort studies with improvements in expanding the sample size, adjusting the covariates, and considering different types of PFAS exposure at various doses, are needed to elucidate the putative causal associations and potential mode of action of different PFAS on diabetes., Impact Statement: A growing body of evidence suggests that per- and polyfluoroalkyl substances (PFAS) are endocrine disruptors and may contribute to the development of diabetes. However, epidemiological evidence on the associations of PFAS and diabetes is inconsistent. We performed this comprehensive systematic review and meta-analysis to quantitatively synthesize the evidence. The findings of this study suggest that exposure to PFAS may increase diabetes risk among the general population. Reduced exposure to these "forever and everywhere chemicals" may be an important preventative approach to reducing the risk of diabetes across the population., (© 2022. The Author(s), under exclusive licence to Springer Nature America, Inc.)
- Published
- 2023
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47. Endodontic malpractice litigations in the United States from 2000 to 2021.
- Author
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Wu KJ, Hsieh SC, Yang CN, Chen YW, Lai CL, Lai TJ, and Yen-Ping Kuo M
- Abstract
Background/purpose: Little is known regarding the outcomes and distinguishing characteristics of lawsuits related to endodontic procedures. This study used a verdict-based data from United States of America to analyze the factors associated with endodontic malpractice lawsuits and mitigate the risk of litigation., Materials and Methods: The LexisNexis legal database was used to search for endodontic malpractice cases from January 1, 2000 to December 31, 2021 using the terms "medical malpractice" and (I) "endodontist" (II) "endodontics" (III) "root canal" (IV) "dental pulp." Each case was reviewed for reported medical characteristics and litigation outcomes., Results: A total of 650 cases were initially identified, and 97 cases were included in the final analysis. Eighty-four (86.6%) of the 97 defendants were general practitioners; 42 cases favored the plaintiff, 53 (54.6%) favored the defendant, 1 was partial win/loss, and 1 was settled. The annual case mean was 4.41 ± 2.17 (Mean ± SD). The major allegations favored for the patients involving paresthesia, root perforation, rubber dam not use, wrong tooth therapy, and infections. Plaintiffs who claimed with post-procedural reasons had a significantly higher winning rate than non-post-procedural reasons (P < 0.05)., Conclusion: In the present study, 54.6% of endodontic litigation favored the dentists in the US. The authors recommend that general practitioners refer complicated cases to endodontists and treat carefully to avoid paresthesia, canal perforation and infections. Clinicians should always diagnose and treat correctly, shared decision making with the patient, use rubber dam routinely, and timely management to prevent malpractice claims., Competing Interests: The authors have no conflicts of interest relevant to this article., (© 2022 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.)
- Published
- 2023
- Full Text
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48. Hominibacterium faecale gen. nov., sp. nov., an anaerobic L-arginine-degrading bacterium isolated from human feces.
- Author
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Borhanudin N, Yang M, Chaplin AV, Li J, Wang Q, Dai LR, Wu KJ, Ma SC, Efimov BA, and Cheng L
- Subjects
- Humans, Anaerobiosis, Phylogeny, RNA, Ribosomal, 16S genetics, Fatty Acids chemistry, Bacteria, Anaerobic genetics, Gram-Positive Bacteria genetics, Feces, DNA, Bacterial genetics, Sequence Analysis, DNA, Bacterial Typing Techniques, Arginine, Sodium Chloride
- Abstract
Two anaerobic, mesophilic bacteria SF3
T and ASD5510 were isolated from human feces in two different countries. Strain SF3T shared 99.9% of 16S rRNA gene sequence similarity with strain ASD5510, and 92.8% similarity with the most similar strain Aminipila butyrica DSM 103574T . Strain SF3T was an anaerobic, Gram-stain-positive bacterium. Cells of strain SF3T were short rods with 0.3-0.4 µm in width × 2.0-2.4 µm in length and occurred mostly in pairs or short chains. Spore formation was not observed. The strain grew optimally at 35 °C (range from 20 to 45 °C), pH 7.5 (pH 6.0-8.5) and without NaCl addition (range from 0 to 20 g l-1 NaCl). Yeast extract was an essential growth factor for strain SF3T , L-arginine and γ-aminobutyrate were utilized as substrates for growth. The major cellular fatty acids were iso-C15:0 and C16:0 DMA. The main polar lipids were aminophospholipid (APL), diphosphatidylglycerol (DPG) and phosphatidylethanolamine (PE). The G + C content of the genomic DNA of the strain SF3T was 47.38 mol %. The paired genomic average amino acid identity (AAI) and percentage of conserved proteins (POCP) values showed relatedness of less than 61.0 and 39.4% with type strains of order Eubacteriales. On the basis of phenotypic, phylogenetic and phylogenomic evidence strain SF3T constitutes a novel species in a novel genus, for which the name Hominibacterium faecale gen. nov., sp. nov. is proposed. The type strain is SF3T (= CCAM 730T = JCM 34755T = KCTC 25324T )., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2022
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49. Growth and Performance of High-Quality SWCNT Forests on Inconel Foils as Lithium-Ion Battery Anodes.
- Author
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Moyer-Vanderburgh K, Ma MC, Park SJ, Jue ML, Buchsbaum SF, Wu KJ, Wood M, Ye J, and Fornasiero F
- Abstract
Large-scale production of vertically aligned single-walled carbon nanotubes (VA-SWCNTs) on metal foils promises to enable technological advancements in many fields, from functional composites to energy storage to thermal interfaces. In this work, we demonstrate growth of high-quality (G/D > 6, average diameters ∼ 2-3 nm, densities > 10
12 cm-2 ) VA-SWCNTs on Inconel metal for use as a lithium-ion battery (LIB) anode. Scale-up of SWCNT growth on Inconel 625 to 100 cm2 exhibits nearly invariant CNT structural properties, even when synthesis is performed near atmospheric pressure, and this robustness is attributed to a growth kinetic regime dominated by the carbon precursor diffusion in the bulk gas mixture. SWCNT forests produced on large-area metal substrates at close to atmospheric pressure possess a combination of structural features that are among the best demonstrated so far in the literature for growth on metal foils. Leveraging these achievements for energy applications, we demonstrate a VA-SWCNT LIB anode with capacity >1200 mAh/g at 1.0C and stable cycling beyond 300 cycles. This robust synthesis of high-quality VA-SWCNTs on metal foils presents a promising route toward mass production of high-performance CNT devices for a broad range of applications.- Published
- 2022
- Full Text
- View/download PDF
50. METTL4-mediated nuclear N6-deoxyadenosine methylation promotes metastasis through activating multiple metastasis-inducing targets.
- Author
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Hsu KW, Lai JC, Chang JS, Peng PH, Huang CH, Lee DY, Tsai YC, Chung CJ, Chang H, Chang CH, Chen JL, Pang ST, Hao Z, Cui XL, He C, and Wu KJ
- Subjects
- Animals, Methylation, Chromatin, Hypoxia, Deoxyadenosines, Mammals, RNA, Long Noncoding genetics, Urinary Bladder Neoplasms
- Abstract
Background: DNA N6-methyldeoxyadenosine (6mA) is rarely present in mammalian cells and its nuclear role remains elusive., Results: Here we show that hypoxia induces nuclear 6mA modification through a DNA methyltransferase, METTL4, in hypoxia-induced epithelial-mesenchymal transition (EMT) and tumor metastasis. Co-expression of METTL4 and 6mA represents a prognosis marker for upper tract urothelial cancer patients. By RNA sequencing and 6mA chromatin immunoprecipitation-exonuclease digestion followed by sequencing, we identify lncRNA RP11-390F4.3 and one novel HIF-1α co-activator, ZMIZ1, that are co-regulated by hypoxia and METTL4. Other genes involved in hypoxia-mediated phenotypes are also regulated by 6mA modification. Quantitative chromatin isolation by RNA purification assay shows the occupancy of lncRNA RP11-390F4.3 on the promoters of multiple EMT regulators, indicating lncRNA-chromatin interaction. Knockdown of lncRNA RP11-390F4.3 abolishes METTL4-mediated tumor metastasis. We demonstrate that ZMIZ1 is an essential co-activator of HIF-1α., Conclusions: We show that hypoxia results in enriched 6mA levels in mammalian tumor cells through METTL4. This METTL4-mediated nuclear 6mA deposition induces tumor metastasis through activating multiple metastasis-inducing genes. METTL4 is characterized as a potential therapeutic target in hypoxic tumors., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
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