23 results on '"Xia, Jinquan"'
Search Results
2. ACKR1 hi ECs Promote Aortic Dissection Through Adjusting Macrophage Behavior.
- Author
-
Wang, Yayu, Jia, Xiong, Zhang, Yifei, Zhang, Bin, Zhou, Yazhe, Li, Xiaoru, Zhu, Xiaoying, Xia, Jinquan, Ren, Jun, Zou, Chang, and Zheng, Qijun
- Published
- 2025
- Full Text
- View/download PDF
3. LASSO-Based Machine Learning Algorithm for Prediction of PICS Associated with Sepsis.
- Author
-
Hui, Kangping, Hong, Chengying, Xiong, Yihan, Xia, Jinquan, Huang, Wei, Xia, Andi, Xu, Shunyao, Chen, Yuting, Zhang, Zhongwei, and Chen, Huaisheng
- Subjects
MACHINE learning ,TROPICAL medicine ,LACTIC acidosis ,PREDICTION models ,ARTIFICIAL respiration - Abstract
Objective is to amalgamate a diverse array of indicators and pathogenic microbial data to pinpoint pivotal predictive variables, enabling effective intervention specifically tailored to the context of tropical diseases. Methods: A focused analysis was conducted on 1733 patients admitted to the ICU between December 2016 and July 2019. Utilizing the Least Absolute Shrinkage and Selection Operator (LASSO) regression, disease severity and laboratory indices were scrutinized. The identified variables served as the foundation for constructing a predictive model designed to forecast the occurrence of PICS. Results: Among the subjects, 13.79% met the diagnostic criteria for PICS, correlating with a mortality rate of 38.08%. Key variables, including red-cell distribution width coefficient of variation (RDW-CV), hemofiltration (HF), mechanical ventilation (MV), Norepinephrine (NE), lactic acidosis, and multiple-drug resistant bacteria (MDR) infection, were identified through LASSO regression. The resulting predictive model exhibited a robust performance with an Area Under the Curve (AUC) of 0.828, an accuracy of 0.862, and a specificity of 0.977. Subsequent validation in an independent cohort yielded an AUC of 0.848. Discussion: The acquisition of RDW-CV, HF requirement, MV requirement, NE requirement, lactic acidosis, and MDR upon ICU admission emerges as a pivotal factor for prognosticating PICS onset in the context of tropical diseases. This study highlights the potential for significant improvements in clinical outcomes through the implementation of timely and targeted interventions tailored specifically to the challenges posed by tropical diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Identification of a distinct luminal subgroup diagnosing and stratifying early stage prostate cancer by tissue-based single-cell RNA sequencing
- Author
-
Ma, Xiaoshi, Guo, Jinan, Liu, Kaisheng, Chen, Lipeng, Liu, Dale, Dong, Shaowei, Xia, Jinquan, Long, Qiaoyun, Yue, Yongjian, Zhao, Pan, Hu, Fengyan, Xiao, Zhangang, Pan, Xinghua, Xiao, Kefeng, Cheng, Zhiqiang, Ke, Zunfu, Chen, Zhe-Sheng, and Zou, Chang
- Published
- 2020
- Full Text
- View/download PDF
5. LASSO-Based Identification of Risk Factors and Development of a Prediction Model for Sepsis Patients.
- Author
-
Hong, Chengying, Xiong, Yihan, Xia, Jinquan, Huang, Wei, Xia, Andi, Xu, Shunyao, Chen, Yuting, Xu, Zhikun, Chen, Huaisheng, and Zhang, Zhongwei
- Subjects
HEART failure ,PREDICTION models ,SEPSIS ,INTENSIVE care units ,NEONATAL sepsis ,C-reactive protein - Abstract
Objective of this study was to utilize LASSO regression (Least Absolute Shrinkage and Selection Operator Regression) to identify key variables in septic patients and develop a predictive model for intensive care unit (ICU) mortality. Methods: We conducted a cohort consisting of septic patients admitted to the ICU between December 2016 and July 2019. The disease severity and laboratory index were analyzed using LASSO regression. The selected variables were then used to develop a model for predicting ICU mortality. AUCs of ROCs were applied to assess the prediction model, and the accuracy, sensitivity and specificity were calculated. Calibration were also used to assess the actual and predicted values of the predictive model. Results: A total of 1733 septic patients were included, among of whom 382 (22%) died during ICU stay. Ten variables, namely mechanical ventilation (MV) requirement, hemofiltration (HF) requirement, norepinephrine (NE) requirement, septicemia, multiple drug-resistance infection (MDR), thrombocytopenia, hematocrit, red-cell deviation width coefficient of variation (RDW-CV), C-reactive protein (CRP), and antithrombin (AT) III, showed the strongest association with sepsis-related mortality according to LASSO regression. When these variables were combined into a predictive model, the area under the curve (AUC) was found to be 0.801. The AUC of the validation group was 0.791. The specificity of the model was as high as 0.953. Within the probability range of 0.25 to 0.90, the predictive performance of the model surpassed that of individual predictors within the cohort. Conclusion: Our findings suggest that a predictive model incorporating the variables of MV requirement, HF requirement, NE requirement, septicemia, MDR, thrombocytopenia, HCT, RDW-CV, CRP, and AT III exhibiting an 80% likelihood of predicting ICU mortality in sepsis and demonstrates high accuracy. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. METTL1 promotes colorectal cancer cell proliferation by attenuating CHEK2-induced G1/S phase arrest
- Author
-
Jiang, Houxiang, Liu, Ying, Song, Huibin, Xia, Jinquan, Tian, Ying, Wang, Luolin, Li, Mingwei, Xu, Zhenyu, Xu, Zhenglei, and Zou, Chang
- Published
- 2024
- Full Text
- View/download PDF
7. Hypothalamus-pituitary-gonad axis transcriptome profiling for sex differentiation in Acipenser sinensis
- Author
-
Du, Hejun, Jian, Jianbo, Wang, Binzhong, Liu, Xueqing, Chen, Jianwei, Xiao, Kan, Xia, Jinquan, Yang, Jing, Gao, Yong, and Chen, Lei
- Published
- 2019
- Full Text
- View/download PDF
8. Genome and transcriptome of the porcine whipworm Trichuris suis
- Author
-
Jex, Aaron R, Nejsum, Peter, Schwarz, Erich M, Hu, Li, Young, Neil D, Hall, Ross S, Korhonen, Pasi K, Liao, Shengguang, Thamsborg, Stig, Xia, Jinquan, Xu, Pengwei, Wang, Shaowei, Scheerlinck, Jean-Pierre Y, Hofmann, Andreas, Sternberg, Paul W, Wang, Jun, and Gasser, Robin B
- Published
- 2014
- Full Text
- View/download PDF
9. Yin Yang 1 promotes aggressive cell growth in high‐grade breast cancer by directly transactivating kinectin 1.
- Author
-
Gao, Lin, Zhou, Wenbin, Xie, Ni, Qiu, Junying, Huang, Jingyi, Zhang, Zhe, Hong, Malin, Xia, Jinquan, Xu, Jing, Zhao, Pan, Fu, Li, Luo, Yuwei, Jiang, Jing, Gong, Hui, Wang, Jigang, Dai, Yong, Luo, Dixian, and Zou, Chang
- Subjects
BREAST cancer treatment ,TUMOR growth ,KINESIN ,CELLULAR signal transduction ,BIOINFORMATICS - Abstract
Invasive cancer growth and metastasis account for the poor prognosis of high‐grade breast cancer. Recently, we reported that kinectin 1 (KTN1), a member of the kinesin‐binding protein family, promotes cell invasion of triple‐negative breast cancer and high‐grade breast cancer cells by augmenting the NF‐κB signaling pathway. However, the upstream mechanism regulating KTN1 is unknown. Therefore, this functional study was performed to decipher the regulatory cohort of KTN1 in high‐grade breast cancer. Bioinformatic analysis indicated that transcription factor Yin Yang 1 (YY1) was a potential transactivator of KTN1. High YY1 expression correlated positively with pathological progression and poor prognosis of high‐grade breast cancer. Additionally, YY1 promoted cell invasive growth both in vitro and in vivo, in a KTN1‐dependent manner. Mechanistically, YY1 could transactivate the KTN1 gene promoter. Alternatively, YY1 could directly interact with a co‐factor, DEAD‐box helicase 3 X‐linked (DDX3X), which significantly co‐activated YY1‐mediated transcriptional expression of KTN1. Moreover, DDX3X augmented YY1‐KTN1 signaling‐promoted invasive cell growth of breast cancer. Importantly, overexpression of YY1 enhanced tumor aggressive growth in a mouse breast cancer model. Our findings established a novel DDX3X‐assisted YY1‐KTN1 regulatory axis in breast cancer progression, which could lead to the development novel therapeutic targets for breast cancer. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
10. Kinectin 1 promotes the growth of triple-negative breast cancer via directly co-activating NF-kappaB/p65 and enhancing its transcriptional activity.
- Author
-
Gao, Lin, Chen, Shanze, Hong, Malin, Zhou, Wenbin, Wang, Bilan, Qiu, Junying, Xia, Jinquan, Zhao, Pan, Fu, Li, Wang, Jigang, Dai, Yong, Xie, Ni, Yang, Qinhe, Huang, Hsien-Da, Gao, Xiang, and Zou, Chang
- Published
- 2021
- Full Text
- View/download PDF
11. Mutational Pattern in Multiple Pulmonary Nodules Are Associated With Early Stage Lung Adenocarcinoma.
- Author
-
Dong, Shao-wei, Li, Rong, Cheng, Zhiqiang, Liu, Dong-cheng, Xia, Jinquan, Xu, Jing, Li, Shixuan, Wang, Jian, Yue, Yongjian, Fan, Yingrui, Cao, Yundi, Dai, Lingyun, Wang, Jigang, Zhao, Pan, Wang, Xin, Xiao, Zhangang, Qiu, Chen, Wang, Guang-suo, and Zou, Chang
- Subjects
PULMONARY nodules ,GENE expression profiling ,MOLECULAR evolution ,LUNGS ,GENES ,BONE morphogenetic protein receptors ,CELL communication - Abstract
The clinical significance of mutation in multiple pulmonary nodules is largely limited by single gene mutation-directed analysis and lack of validation of gene expression profiles. New analytic strategy is urgently needed for comprehensive understanding of genomic data in multiple pulmonary nodules. In this study, we performed whole exome sequencing in 16 multiple lung nodules and 5 adjacent normal tissues from 4 patients with multiple pulmonary nodules and decoded the mutation information from a perspective of cellular functions and signaling pathways. Mutated genes as well as mutation patterns shared in more than two lesions were identified and characterized. We found that the number of mutations or mutated genes and the extent of protein structural changes caused by different mutations is positively correlated with the degree of malignancy. Moreover, the mutated genes in the nodules are associated with the molecular functions or signaling pathways related to cell proliferation and survival. We showed a developing pattern of quantity (the number of mutations/mutated genes) and quality (the extent of protein structural changes) in multiple pulmonary nodules. The mutation and mutated genes in multiple pulmonary nodules are associated with cell proliferation and survival related signaling pathways. This study provides a new perspective for comprehension of genomic mutational data and might shed new light on deciphering molecular evolution of early stage lung adenocarcinoma. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
12. Integrated analysis of mRNA and miRNA expression profiles reveals muscle growth differences between adult female and male Chinese concave-eared frogs (Odorrana tormota).
- Author
-
Shu, Yilin, Xia, Jinquan, Yu, Qiang, Wang, Gang, Zhang, Jihui, He, Jun, Wang, Huan, Zhang, Ling, and Wu, Hailong
- Subjects
- *
MESSENGER RNA , *MICRORNA , *MUSCLE growth , *HUMAN growth , *VERTEBRATE genetics - Abstract
Abstract The Chinese concave-eared torrent frog (Odorrana tormota) is the first known non-mammalian vertebrate that can communicate using ultrasound. In this species, females are approximately four times as large as males, in which the female growth rate is obviously higher than that of male. Until now, the molecular mechanisms underlying muscle growth development differences between male and female frogs have not been reported. Here, we integrated mRNA and miRNA expression profiles to reveal growth differences in the hindlimb muscles of 2-year-old frogs. Among 569 differentially expressed genes (DEGs), 69 were associated with muscle growth and regeneration. Fifty-one up-regulated genes in females were potentially involved in promoting muscle growth and regeneration, whereas 18 up-regulated genes in males may lead to muscle growth inhibition and fast-twitch muscle fiber contraction. 244 DEGs were enriched in mTOR and other protein synthesis signaling pathways, and protein degradation pathways, including lysosomal protease, calpain, caspase, and ubiquitin–proteasome system pathways. It may interpret why female muscles grow faster than males. Based on expression differences of genes involved in glycolysis and oxidative metabolism, we speculated that the proportion of slow muscle fiber was higher and that of fast muscle fiber was lower in female compared with male muscle. Additionally, 767 miRNAs were identified, including 217 new miRNAs, and 6248 miRNA-negatively regulated mRNAs were predicted. The miRNA target genes were enriched in pathways related to muscle growth, protein synthesis, and degradation. Thus, in addition to the identified mRNA differential expressions, miRNAs may play other important roles in the differential regulation of hindlimb muscle growth between female and male O. tormota. Highlights • 69 muscle growth and 7 lipid metabolism genes were identified. • mTOR and other protein synthesis pathways promote muscle protein synthesis of female frogs. • Ubiquitin–proteasome system pathways and other pathways promote protein degradation of male frogs. • miRNA target genes were enriched in muscle growth, protein synthesis and degradation-related pathways. • miRNAs may play important roles in the differential regulation of hindlimb muscle growth between female and male O. tormota. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
13. The yak genome and adaptation to life at high altitude
- Author
-
Qiu, Qiang, Zhang, Guojie, Ma, Tao, Qian, Wubin, Ye, Zhiqiang, Cao, Changchang, Hu, Quanjun, Kim, Jaebum, Larkin, Denis M., Auvil, Loretta, Capitanu, Boris, Ma, Jian, Lewin, Harris A., Qian, Xiaoju, Lang, Yongshan, Zhou, Ran, Wang, Lizhong, Wang, Kun, Xia, Jinquan, Liao, Shengguang, Pan, Shengkai, Lu, Xu, Hou, Haolong, Wang, Yan, Zang, Xuetao, Yin, Ye, Ma, Hui, Zhang, Jian, Wang, Zhaofeng, Zhang, Yingmei, Zhang, Dawei, Yonezawa, Takahiro, Hasegawa, Masami, Zhong, Yang, Liu, Wenbin, Zhang, Yan, Huang, Zhiyong, Zhang, Shengxiang, Long, Ruijun, Yang, Huanming, Lenstra, Johannes A., Cooper, David N., Wu, Yi, Wang, Jun, Shi, Peng, Wang, Jian, Liu, Jianquan, Wang, Junyis, LS IRAS Tox Algemeen, Faculty of Veterinary Medicine Research Groups, and Algemeen Onderzoek DGK
- Subjects
Genetics - Abstract
Domestic yaks (Bos grunniens) provide meat and other necessities for Tibetans living at high altitude on the Qinghai-Tibetan Plateau and in adjacent regions. Comparison between yak and the closely related low-altitude cattle (Bos taurus) is informative in studying animal adaptation to high altitude. Here, we present the draft genome sequence of a female domestic yak generated using Illumina-based technology at 65-fold coverage. Genomic comparisons between yak and cattle identify an expansion in yak of gene families related to sensory perception and energy metabolism, as well as an enrichment of protein domains involved in sensing the extracellular environment and hypoxic stress. Positively selected and rapidly evolving genes in the yak lineage are also found to be significantly enriched in functional categories and pathways related to hypoxia and nutrition metabolism. These findings may have important implications for understanding adaptation to high altitude in other animal species and for hypoxia-related diseases in humans. © 2012 Nature America, Inc. All rights reserved.
- Published
- 2012
14. Peregrine and saker falcon genome sequences provide insights into evolution of a predatory lifestyle.
- Author
-
Zhan, Xiangjiang, Pan, Shengkai, Wang, Junyi, Dixon, Andrew, He, Jing, Muller, Margit G, Ni, Peixiang, Hu, Li, Liu, Yuan, Hou, Haolong, Chen, Yuanping, Xia, Jinquan, Luo, Qiong, Xu, Pengwei, Chen, Ying, Liao, Shengguang, Cao, Changchang, Gao, Shukun, Wang, Zhaobao, and Yue, Zhen
- Subjects
SAKER falcon ,BIRDS ,GENOMES ,NUCLEOTIDE sequence ,BIOLOGICAL evolution ,BIRD morphology ,BIRD physiology - Abstract
As top predators, falcons possess unique morphological, physiological and behavioral adaptations that allow them to be successful hunters: for example, the peregrine is renowned as the world's fastest animal. To examine the evolutionary basis of predatory adaptations, we sequenced the genomes of both the peregrine (Falco peregrinus) and saker falcon (Falco cherrug), and we present parallel, genome-wide evidence for evolutionary innovation and selection for a predatory lifestyle. The genomes, assembled using Illumina deep sequencing with greater than 100-fold coverage, are both approximately 1.2 Gb in length, with transcriptome-assisted prediction of approximately 16,200 genes for both species. Analysis of 8,424 orthologs in both falcons, chicken, zebra finch and turkey identified consistent evidence for genome-wide rapid evolution in these raptors. SNP-based inference showed contrasting recent demographic trajectories for the two falcons, and gene-based analysis highlighted falcon-specific evolutionary novelties for beak development and olfaction and specifically for homeostasis-related genes in the arid environment-adapted saker. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
15. ACKR1 hi ECs Promote Aortic Dissection Through Adjusting Macrophage Behavior.
- Author
-
Wang Y, Jia X, Zhang Y, Zhang B, Zhou Y, Li X, Zhu X, Xia J, Ren J, Zou C, and Zheng Q
- Abstract
Background: Type A aortic dissection (TAAD) is a life-threatening condition characterized by complex pathophysiology, in which macrophages play a critical but not yet fully understood role. This study focused on the role of endothelial cells with elevated expression of ACKR1 (atypical chemokine receptor 1) and their interaction with proinflammatory macrophages in TAAD development., Methods and Results: Single-cell transcriptomic analysis of human aortic tissues revealed increased populations of endothelial cells exhibiting high ACKR1 expression and proinflammatory macrophages in TAAD samples. Both clinical and animal studies revealed that ACKR1 expression levels were strongly linked to TAAD severity. Gain- and loss-of-function studies demonstrated that ACKR1 promotes TAAD progression. Specific knockdown of ACKR1 in endothelial cells suppressed the NF-κB (nuclear factor-κB) signaling pathway and SPP1 (secreted phosphoprotein 1) expression, leading to reduced macrophage migration and proinflammatory polarization, which subsequently inhibited TAAD development. Conversely, ACKR1 overexpression accelerated TAAD progression. Notably, molecular docking and comprehensive evaluation identified amikacin as a potential novel modulator of ACKR1. Extensive in vitro and in vivo studies demonstrated that amikacin can regulate macrophage behavior through the ACKR1/NF-κB/SPP1 signaling pathway, thereby attenuating TAAD progression and improving survival rates in TAAD mice., Conclusions: This study reveals how endothelial cells exhibiting high ACKR1 expression modulate macrophage migration and proinflammatory polarization through the ACKR1/NF-κB/SPP1 signaling pathway, a crucial mechanism in TAAD progression. Targeting ACKR1 through both functional and pharmacological approaches effectively suppressed TAAD progression and extended survival in TAAD mice, offering promising new intervention strategies for clinical evaluation.
- Published
- 2024
- Full Text
- View/download PDF
16. Phytochemical profiling and evaluation of antimicrobial activities of common culinary spices: Syzygium aromaticum (clove) and Piper nigrum (black pepper).
- Author
-
Zhao K, Wonta KB, Xia J, Zhong F, and Sharma V
- Abstract
Background: The increasing resistance of microbial pathogens to conventional antibiotics necessitates the exploration of alternative antimicrobial agents. This study aims to evaluate the antimicrobial potential and phytochemical properties of Syzygium aromaticum (clove) and Piper nigrum (black pepper) extracts, both of which are known for their historical use in traditional medicine and culinary applications., Methods: Hydroalcoholic and aqueous extracts of clove and black pepper were prepared. The antimicrobial activity of these extracts was assessed using the disk diffusion method against Escherichia coli , Staphylococcus aureus , Pseudomonas aeruginosa , Candida albicans , and Aspergillus niger . Minimum inhibitory concentration (MIC) was determined using the broth dilution method. Qualitative phytochemical screening identified the presence of key bioactive compounds, while quantitative analysis measured total phenolic and flavonoid contents. LC-HRMS/MS analysis of ethanolic extracts was performed., Results: Both spices extracts exhibited significant antimicrobial activity, with inhibition zones ranging from 14 to 18 mm. clove showed superior antimicrobial efficacy compared to black paper, particularly against fungi. MIC values ranged between 3 mg/mL and 6 mg/mL for both spices. Phytochemical analysis revealed higher total phenolic and flavonoid contents in clove, with hydroalcoholic extracts showing greater concentrations than aqueous extracts. HPLC quantified higher eugenol content in clove extracts and higher piperine content in black pepper extracts. The differences in bioactive compound content were statistically significant ( p < 0.05)., Conclusion: The study confirms that both spices possess significant antimicrobial properties, attributable to their rich phytochemical composition, particularly phenolics and flavonoids. Clove exhibited slightly superior antimicrobial activity compared to black paper. These findings support the potential use of these spices as complementary antimicrobial agents. Further research should investigate their synergistic effects with conventional antibiotics and explore their applications in food preservation and alternative medicine., 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 © 2024 Zhao, Wonta, Xia, Zhong and Sharma.)
- Published
- 2024
- Full Text
- View/download PDF
17. Dynamic changes in macrophage subtypes during lung cancer progression and metastasis at single-cell resolution.
- Author
-
Wang J, Wu W, Xia J, Chen L, Liu D, Wang G, Wang L, and Zheng Q
- Abstract
Background: Lung cancer remains a major global health challenge. Macrophages (Macs) are one important component of tumor microenvironments (TMEs); however, their prognostic relevance to lung cancer is currently unknown due to the complexity of their phenotypes., Methods: In the present study, reanalysis and atlas reconstruction of downloaded single-cell RNA sequencing (scRNAseq) data were used to systematically compare the component and transcriptional changes in Mac subtypes across different stages of lung cancer., Results: We found that with the progression of lung cancer, the proportion of alveolar macrophages (aMacs) gradually decreased, while the proportions of Macs and monocytes (Monos) gradually increased, suggesting a chemotaxis process followed by a Mono-Mac differentiation process. Meanwhile, through ligand-receptor (LR) screening, we identified 9 Mac-specific interactions that were enriched during the progression and metastasis of lung cancer, which could potential promote M2 polarization or the infiltration of M2 Macs. Moreover, we found that the expression of SPP1 in Macs increased with lung cancer progression, and identified 9 genes that were correlated with the expression of SPP1 in Macs, which might also contribute to the immunosuppression process in lung cancer., Conclusions: Our results revealed detailed changes in Macs at different stages of lung cancer progression and metastasis and provided potential therapeutic targets that could be used in future lung cancer treatments., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://jtd.amegroups.com/article/view/10.21037/jtd-23-1012/coif). The authors have no conflicts of interest to declare., (2023 Journal of Thoracic Disease. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
18. Monoacylglycerol lipase regulates macrophage polarization and cancer progression in uveal melanoma and pan-cancer.
- Author
-
Tan Y, Pan J, Deng Z, Chen T, Xia J, Liu Z, Zou C, and Qin B
- Subjects
- Humans, Macrophage Activation, Macrophages, Tumor Microenvironment, Monoacylglycerol Lipases genetics, Melanoma genetics
- Abstract
Background: Although lipid metabolism has been proven to play a key role in the development of cancer, its significance in uveal melanoma (UM) has not yet been elucidated in the available literature., Methods: To identify the expression patterns of lipid metabolism in 80 UM patients from the TCGA database, 47 genes involved in lipid metabolism were analyzed. Consensus clustering revealed two distinct molecular groups. ESTIMATE, TIMER, and ssGSEA analyses were done to identify the differences between the two subgroups in tumor microenvironment (TME) and immune state. Using Cox regression and Lasso regression analysis, a risk model based on differentially expressed genes (DEGs) was developed. To validate the expression of monoacylglycerol lipase (MGLL) and immune infiltration in diverse malignancies, a pan-cancer cohort from the UCSC database was utilized. Next, a single-cell sequencing analysis on UM patients from the GEO data was used to characterize the lipid metabolism in TME and the role of MGLL in UM. Finally, in vitro investigations were utilized to study the involvement of MGLL in UM., Results: Two molecular subgroups of UM patients have considerably varied survival rates. The majority of DEGs between the two subgroups were associated with immune-related pathways. Low immune scores, high tumor purity, a low number of immune infiltrating cells, and a comparatively low immunological state were associated with a more favorable prognosis. An examination of GO and KEGG data demonstrated that the risk model based on genes involved with lipid metabolism can accurately predict survival in patients with UM. It has been demonstrated that MGLL, a crucial gene in this paradigm, promotes the proliferation, invasion, and migration of UM cells. In addition, we discovered that MGLL is strongly expressed in macrophages, specifically M2 macrophages, which may play a function in the M2 polarization of macrophages and M2 macrophage activation in cancer cells., Conclusion: This study demonstrates that the risk model based on lipid metabolism may be useful for predicting the prognosis of patients with UM. By promoting macrophage M2 polarization, MGLL contributes to the evolution of malignancy in UM, suggesting that it may be a therapeutic target for UM., 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. The reviewer HC declared a shared parent affiliation with the author CZ to the handling editor at the time of review., (Copyright © 2023 Tan, Pan, Deng, Chen, Xia, Liu, Zou and Qin.)
- Published
- 2023
- Full Text
- View/download PDF
19. Transcription factor E2F8 is a therapeutic target in the basal-like subtype of breast cancer.
- Author
-
Zheng J, Huang J, Xia J, Zhou W, Dai L, Lin S, Gao L, and Zou C
- Abstract
Introduction: Tumorigenesis in breast cancers usually accompanied by the dysregulation of transcription factors (TFs). Abnormal amplification of TFs leads aberrant expression of its downstream target genes. However, breast cancers are heterogeneous disease with different subtypes that have distinguished clinical behaviours, and the identification of prognostic TFs may enable to provide diagnosis and treatment of breast cancer based on subtypes, especially in Basal-like breast cancer., Methods: The RNA-sequencing was performed to screen differential TFs in breast cancer subtypes. The GEPIA dataset analysis was used to analyze the genes expression in invasive breast carcinoma. The expression of MYBL2, HOXC13, and E2F8 was verified by qRT-PCR assay in breast cancers. The depiction analysis of co-expressed proteins was revealed using the STRING datasets. The cellular infiltration level analysis by the TISIDB and TIMER databases. The transwell assay was performed to analyze cellular migration and invasion. CCK-8 assay was used to evaluate cellular drug susceptibility for docetaxel treatment. Predicted targeted drugs in breast cancers by GSCA Lite database online., Results: Kaplan-Meier plotter suggested that high expression of both E2F8 and MYBL2 in Basal-like subtype had a poor relapse-free survival. Functional enrichment results identified that apoptosis, cell cycle, and hormone ER pathway were represented the crucial regulation pathways by both E2F8 and MYBL2. In the meantime, database analysis indicated that high expression of E2F8 responded to chemotherapy, while those patients of high expression of MYBL2 responded to endocrinotherapy, and a positive correlation between the expression of E2F8 and PD-L1/CTLA4. Our cell line experiments confirmed the importance of E2F8 and MYBL2 in proliferation and chemotherapy sensitivity, possibly, the relationship with PD-L1. Additionally, we also observed that the up-regulation of E2F8 was accompanied with higher enrichments of CD4+ T cells and CD8+ T cells in breast cancers., Conclusion: Taken together, our findings elucidated a prospective target in Basal-like breast cancer, providing underlying molecular biomarkers for the development of breast cancer treatment., 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 Zheng, Huang, Xia, Zhou, Dai, Lin, Gao and Zou.)
- Published
- 2023
- Full Text
- View/download PDF
20. Identification of novel prognostic biomarkers for osteosarcoma: a bioinformatics analysis of differentially expressed genes in the mesenchymal stem cells from single-cell sequencing data set.
- Author
-
Jiang H, Du H, Liu Y, Tian X, Xia J, and Yang S
- Abstract
Background: Mesenchymal stem cells (MSCs) play a crucial role in osteosarcoma (OS) growth and progression. This study conducted a bioinformatics analysis of a single-cell ribonucleic acid sequencing data set and explored the MSC-specific differentially expressed genes (DEGs) in advanced OS., Methods: MSC-specific DEGs from GSE152048 was extracted using Seurat R package. These DEGs were then subjected to the functional analysis, and several key genes were further identified and underwent a prognosis analysis., Results: A total of 234 upregulated and 280 downregulated DEGs were identified between the MSCs and other cells, and a total of 188 upregulated and 158 downregulated DEGs were identified between the MSCs and osteoblastic cells. The Gene Ontology (GO) functional analysis showed that the specific DEGs between the MSCs and osteoblastic cells were enriched in GO terms such as "collagen catabolic process", "positive regulation of pathway-restricted SMAD protein phosphorylation", "osteoblast differentiation", "regulation of release of cytochrome c from mitochondria" and "interleukin-1 production". The specific DEGs between the MSCs and osteoblastic cells were subjected to a protein-protein interaction network analysis. Further, a survival analysis of 20 genes with combined scores >0.94 revealed that the low expression of ANXA1 ( annexin A1 ) and TPM1 ( tropomyosin 1 ) was associated with the shorter overall survival of OS patients, while the high expression of FDPS ( farnesyl pyrophosphate synthase ), IFITM5 ( interferon-induced transmembrane protein 5 ), FKBP11 ( FKBP prolyl isomerase 11 ), SP7 , and SQLE ( squalene epoxidase ) was associated with the shorter overall survival of OS patients. In a further analysis, we compared the expression of ANXA1 , FDPS , IFITM5 , FKBP11 , SP7 , SQLE , and TPM1 between the MSCs and high-grade OS cells. Further validation studies using the GSE42352 data set revealed that ANXA1 , FKBP11 , SP7 , and TPM1 were more upregulated in the MSCs than the high-grade OS cells, while FDPS , IFITM5 , and SQLE were more downregulated in the MSCs than the high-grade OS cells., Conclusions: Our bioinformatics analysis revealed 7 hub genes derived from the specific DEGs between the MSCs and osteoblastic cells. The 7 hub genes may serve as potential prognostic biomarkers for patients with OS., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://tcr.amegroups.com/article/view/10.21037/tcr-22-2370/coif). The authors have no conflicts of interest to declare., (2022 Translational Cancer Research. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
21. Genome sequencing of the sweetpotato whitefly Bemisia tabaci MED/Q.
- Author
-
Xie W, Chen C, Yang Z, Guo L, Yang X, Wang D, Chen M, Huang J, Wen Y, Zeng Y, Liu Y, Xia J, Tian L, Cui H, Wu Q, Wang S, Xu B, Li X, Tan X, Ghanim M, Qiu B, Pan H, Chu D, Delatte H, Maruthi MN, Ge F, Zhou X, Wang X, Wan F, Du Y, Luo C, Yan F, Preisser EL, Jiao X, Coates BS, Zhao J, Gao Q, Xia J, Yin Y, Liu Y, Brown JK, Zhou XJ, and Zhang Y
- Subjects
- Animals, Female, Gene Library, Male, Sequence Analysis, DNA, Genome, Insect, Hemiptera genetics
- Abstract
The sweetpotato whitefly Bemisia tabaci is a highly destructive agricultural and ornamental crop pest. It damages host plants through both phloem feeding and vectoring plant pathogens. Introductions of B. tabaci are difficult to quarantine and eradicate because of its high reproductive rates, broad host plant range, and insecticide resistance. A total of 791 Gb of raw DNA sequence from whole genome shotgun sequencing, and 13 BAC pooling libraries were generated by Illumina sequencing using different combinations of mate-pair and pair-end libraries. Assembly gave a final genome with a scaffold N50 of 437 kb, and a total length of 658 Mb. Annotation of repetitive elements and coding regions resulted in 265.0 Mb TEs (40.3%) and 20 786 protein-coding genes with putative gene family expansions, respectively. Phylogenetic analysis based on orthologs across 14 arthropod taxa suggested that MED/Q is clustered into a hemipteran clade containing A. pisum and is a sister lineage to a clade containing both R. prolixus and N. lugens. Genome completeness, as estimated using the CEGMA and Benchmarking Universal Single-Copy Orthologs pipelines, reached 96% and 79%. These MED/Q genomic resources lay a foundation for future 'pan-genomic' comparisons of invasive vs. noninvasive, invasive vs. invasive, and native vs. exotic Bemisia, which, in return, will open up new avenues of investigation into whitefly biology, evolution, and management., (© The Author 2017. Published by Oxford University Press.)
- Published
- 2017
- Full Text
- View/download PDF
22. Draft genome of Brugia pahangi: high similarity between B. pahangi and B. malayi.
- Author
-
Lau YL, Lee WC, Xia J, Zhang G, Razali R, Anwar A, and Fong MY
- Subjects
- Adenosine Triphosphatases genetics, Adenosine Triphosphatases metabolism, Aedes parasitology, Animals, Bacterial Proteins genetics, Bacterial Proteins metabolism, Gene Expression Regulation physiology, Helminth Proteins genetics, Helminth Proteins metabolism, Phylogeny, Wolbachia genetics, Wolbachia isolation & purification, Brugia pahangi genetics, Genome, Helminth genetics
- Abstract
Background: Efforts to completely eradicate lymphatic filariasis from human population may be challenged by the emergence of Brugia pahangi as another zoonotic lymphatic filarial nematode. In this report, a genomic study was conducted to understand this species at molecular level., Methods: After blood meal on a B. pahangi-harbouring cat, the Aedes togoi mosquitoes were maintained to harvest infective third stage larvae, which were then injected into male Mongolian gerbils. Subsequently, adult B. pahangi were obtained from the infected gerbil for genomic DNA extraction. Sequencing and subsequently, construction of genomic libraries were performed. This was followed by genomic analyses and gene annotation analysis. By using archived protein sequences of B. malayi and a few other nematodes, clustering of gene orthologs and phylogenetics were conducted., Results: A total of 9687 coding genes were predicted. The genome of B. pahangi shared high similarity to that B. malayi genome, particularly genes annotated to fundamental processes. Nevertheless, 166 genes were considered to be unique to B. pahangi, which may be responsible for the distinct properties of B. pahangi as compared to other filarial nematodes. In addition, 803 genes were deduced to be derived from Wolbachia, an endosymbiont bacterium, with 44 of these genes intercalate into the nematode genome., Conclusions: The reporting of B. pahangi draft genome contributes to genomic archive. Albeit with high similarity to B. malayi genome, the B. pahangi-unique genes found in this study may serve as new focus to study differences in virulence, vector selection and host adaptability among different Brugia spp.
- Published
- 2015
- Full Text
- View/download PDF
23. Two Antarctic penguin genomes reveal insights into their evolutionary history and molecular changes related to the Antarctic environment.
- Author
-
Li C, Zhang Y, Li J, Kong L, Hu H, Pan H, Xu L, Deng Y, Li Q, Jin L, Yu H, Chen Y, Liu B, Yang L, Liu S, Zhang Y, Lang Y, Xia J, He W, Shi Q, Subramanian S, Millar CD, Meader S, Rands CM, Fujita MK, Greenwold MJ, Castoe TA, Pollock DD, Gu W, Nam K, Ellegren H, Ho SY, Burt DW, Ponting CP, Jarvis ED, Gilbert MT, Yang H, Wang J, Lambert DM, Wang J, and Zhang G
- Abstract
Background: Penguins are flightless aquatic birds widely distributed in the Southern Hemisphere. The distinctive morphological and physiological features of penguins allow them to live an aquatic life, and some of them have successfully adapted to the hostile environments in Antarctica. To study the phylogenetic and population history of penguins and the molecular basis of their adaptations to Antarctica, we sequenced the genomes of the two Antarctic dwelling penguin species, the Adélie penguin [Pygoscelis adeliae] and emperor penguin [Aptenodytes forsteri]., Results: Phylogenetic dating suggests that early penguins arose ~60 million years ago, coinciding with a period of global warming. Analysis of effective population sizes reveals that the two penguin species experienced population expansions from ~1 million years ago to ~100 thousand years ago, but responded differently to the climatic cooling of the last glacial period. Comparative genomic analyses with other available avian genomes identified molecular changes in genes related to epidermal structure, phototransduction, lipid metabolism, and forelimb morphology., Conclusions: Our sequencing and initial analyses of the first two penguin genomes provide insights into the timing of penguin origin, fluctuations in effective population sizes of the two penguin species over the past 10 million years, and the potential associations between these biological patterns and global climate change. The molecular changes compared with other avian genomes reflect both shared and diverse adaptations of the two penguin species to the Antarctic environment.
- Published
- 2014
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.