21 results on '"Yisha He"'
Search Results
2. Analysis of transcriptomic features reveals molecular endotypes of SLE with clinical implications
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Erika L. Hubbard, Prathyusha Bachali, Kathryn M. Kingsmore, Yisha He, Michelle D. Catalina, Amrie C. Grammer, and Peter E. Lipsky
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Systemic lupus erythematosus (SLE) ,Autoimmunity ,Inflammation ,Gene expression ,Endotype ,Machine learning (ML) ,Medicine ,Genetics ,QH426-470 - Abstract
Abstract Background Systemic lupus erythematosus (SLE) is known to be clinically heterogeneous. Previous efforts to characterize subsets of SLE patients based on gene expression analysis have not been reproduced because of small sample sizes or technical problems. The aim of this study was to develop a robust patient stratification system using gene expression profiling to characterize individual lupus patients. Methods We employed gene set variation analysis (GSVA) of informative gene modules to identify molecular endotypes of SLE patients, machine learning (ML) to classify individual patients into molecular subsets, and logistic regression to develop a composite metric estimating the scope of immunologic perturbations. SHapley Additive ExPlanations (SHAP) revealed the impact of specific features on patient sub-setting. Results Using five datasets comprising 2183 patients, eight SLE endotypes were identified. Expanded analysis of 3166 samples in 17 datasets revealed that each endotype had unique gene enrichment patterns, but not all endotypes were observed in all datasets. ML algorithms trained on 2183 patients and tested on 983 patients not used to develop the model demonstrated effective classification into one of eight endotypes. SHAP indicated a unique array of features influential in sorting individual samples into each of the endotypes. A composite molecular score was calculated for each patient and significantly correlated with standard laboratory measures. Significant differences in clinical characteristics were associated with different endotypes, with those with the least perturbed transcriptional profile manifesting lower disease severity. The more abnormal endotypes were significantly more likely to experience a severe flare over the subsequent 52 weeks while on standard-of-care medication and specific endotypes were more likely to be clinical responders to the investigational product tested in one clinical trial analyzed (tabalumab). Conclusions Transcriptomic profiling and ML reproducibly separated lupus patients into molecular endotypes with significant differences in clinical features, outcomes, and responsiveness to therapy. Our classification approach using a composite scoring system based on underlying molecular abnormalities has both staging and prognostic relevance.
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- 2023
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3. 2101 Gene Expression Profiling of Key Immune/Inflammatory Pathways Reveals Molecular Endotypes of SLE with Clinical Implications
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Peter E Lipsky, Michelle D Catalina, Prathyusha Bachali, Amrie C Grammer, Kathryn M Kingsmore, Erika L Hubbard, and Yisha He
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Immunologic diseases. Allergy ,RC581-607 - Published
- 2022
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4. Genetic variations in the flanking regions of miR-101-2 are associated with increased risk of breast cancer.
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Jiaping Chen, Zhenzhen Qin, Yue Jiang, Yanru Wang, Yisha He, Juncheng Dai, Guangfu Jin, Hongxia Ma, Zhibin Hu, Yongmei Yin, and Hongbing Shen
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Medicine ,Science - Abstract
Genetic variants in human microRNA (miRNA) genes may alter mature miRNA processing and/or target selection, and likely contribute to cancer susceptibility and disease progression. Previous studies have suggested that miR-101 may play important roles in the development of cancer by regulating key tumor-associated genes. However, the role of single nucleotide polymorphisms (SNPs) of miR-101 in breast cancer susceptibility remains unclear. In this study, we genotyped 11 SNPs of the miR-101 genes (including miR-101-1 and miR-101-2) in a case-control study of 1064 breast cancer cases and 1073 cancer-free controls. The results revealed that rs462480 and rs1053872 in the flank regions of pre-miR-101-2 were significantly associated with increased risk of breast cancer (rs462480 AC/CC vs AA: adjusted OR = 1.182, 95% CI: 1.030-1.357, P = 0.017; rs1053872 CG/GG vs CC: adjusted OR = 1.179, 95% CI: 1.040-1.337, P = 0.010). However, the remaining 9 SNPs were not significantly associated with risk of breast cancer. Additionally, combined analysis of the two high-risk SNPs revealed that subjects carrying the variant genotypes of rs462480 and rs1053872 had increased risk of breast cancer in a dose-response manner (P(trend) = 0.002). Compared with individuals with "0-1" risk allele, those carrying "2-4" risk alleles had 1.29-fold risk of breast cancer. In conclusion, these findings suggested that the SNPs rs462480 and rs1053872 residing in miR-101-2 gene may have a solid impact on genetic susceptibility to breast cancer, which may improve our understanding of the potential contribution of miRNA SNPs to cancer pathogenesis.
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- 2014
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5. Genetic variants at 12p11 and 12q24 are associated with breast cancer risk in a Chinese population.
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Zhenzhen Qin, Yanru Wang, Songyu Cao, Yisha He, Hongxia Ma, Guangfu Jin, Zhibin Hu, Xiaoxiang Guan, and Hongbing Shen
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Medicine ,Science - Abstract
BACKGROUND: A recent genome-wide association study (GWAS) has identified three new breast cancer susceptibility loci at 12p11, 12q24 and 21q21 in populations of European descent. However, because of the genetic heterogeneity, it is largely unknown for the role of these loci in the breast cancer susceptibility in the populations of non-European descent. METHODOLOGY/PRINCIPAL FINDINGS: Here, we genotyped three variants (rs10771399 at 12p11, rs1292011 at 12q24 and rs2823093 at 21q21) in an independent case-control study with a total of 1792 breast cancer cases and 1867 cancer-free controls in a Chinese population. We found that rs10771399 and rs1292011 were significantly associated with risk of breast cancer with per-allele odds ratios (ORs) of 0.85 (95% confidence interval (CI): 0.76-0.96; P = 0.010) and 0.84 (95% CI: 0.76-0.95; P = 4.50×10(-3)), respectively, which was consistent with those reported in populations of European descent. Similar effects were observed between ER/PR positive and negative breast cancer for both loci. However, we did not found significant association between rs2823093 and breast cancer risk (OR = 0.97, 95%CI = 0.76-1.24; P = 0.795). CONCLUSIONS/SIGNIFICANCE: Our results indicate that genetic variants at 12p11 and 12q24 may also play an important role in breast cancer development in Chinese women.
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- 2013
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6. Narratives on Ceramics
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Yisha He
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Pharmacology ,Meaning (philosophy of language) ,Painting ,media_common.quotation_subject ,language ,Art history ,Narrative ,Ancient Greek ,Art ,Postmodernism ,Object (philosophy) ,language.human_language ,media_common - Abstract
I would argue that Richard Milette’s object has been influenced by Greek elements to reconstruct its conception. He selected a classic Greek image as his vessel’s decoration. As Liopold L. Foulem describes, “the Greek prototype chosen by Milette for this series is a true-to-life hydra, a generic, stereotypical form used because of its perverse association with art museums and, more accurately, with the study of Greek painting… by using faux Greek, pseudo-restored pots and by substituting the painted narrative of the originals with a well-known contemporary easel painting”. His ceramic vase’s shape is the same with the ancient Greek vase, but it is built of many fragments, and it has obvious seam lines. Milette intends to highlight the damaged pieces, and his works are keenly collected. I believe his works are fine examples of postmodern ceramics (not sure if I got your meaning right here), because even though his image is a completely Greek scene, it cannot be described as a Greek narrative.
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- 2021
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7. Retraction notice to ' Tetramethylpyrazine alleviates lipopolysaccharide-induced damage in ATDC5 cells via down-regulating MyD88' [Experimental and Molecular Pathology 111 (2019) 104317]
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Qiang Li, Wanying Xing, Xiong Xu, Sulong Wang, Yisha He, Yueshu Wang, and Hongbin Sun
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Clinical Biochemistry ,Molecular Biology ,Pathology and Forensic Medicine - Published
- 2022
8. Tetramethylpyrazine alleviates lipopolysaccharide-induced damage in ATDC5 cells via down-regulating MyD88
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Xiong Xu, Qiang Li, Hongbin Sun, Sulong Wang, Yisha He, Wanying Xing, and Yueshu Wang
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0301 basic medicine ,Lipopolysaccharides ,Lipopolysaccharide ,Vasodilator Agents ,Clinical Biochemistry ,Cell ,Apoptosis ,Pharmacology ,urologic and male genital diseases ,p38 Mitogen-Activated Protein Kinases ,Pathology and Forensic Medicine ,Flow cytometry ,03 medical and health sciences ,chemistry.chemical_compound ,Mice ,0302 clinical medicine ,Chondrocytes ,medicine ,Tetramethylpyrazine ,Animals ,Viability assay ,Molecular Biology ,Cell damage ,Cells, Cultured ,Inflammation ,medicine.diagnostic_test ,NF-kappa B ,Transfection ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,030220 oncology & carcinogenesis ,Pyrazines ,Myeloid Differentiation Factor 88 ,Signal Transduction - Abstract
Background Tetramethylpyrazine (TMP) has been reported to play a significant role in the cardiovascular and neuronal diseases. But, the functions of TMP in osteoarthritis (OA) remain unclear. In this investigation, we intended to probe the protective effectiveness of TMP in lipopolysaccharide (LPS)-caused damage in ATDC5 cells. Methods ATDC5 cells were managed with LPS (5 μg/mL) for 12 h, and then the effects of TMP on these cells were evaluated. Cell viability and apoptosis of these treated cells were detected by CCK-8 and flow cytometry methods. The secretions of IL-1β, IL-6 and TNF-α were examined via applying ELISA kits. qRT-PCR was utilized to measure cell inflammatory factors and MyD88 expression. After transfection with pc-MyD88, the above-involved cell processes were reassessed, and NF-κB and p38MAPK pathways were examined by western blot assay. Results LPS treatment induced a series of inflammatory destructions, which reduced viability, accelerated apoptosis and cell inflammatory factors release in ATDC5 cells. However, TMP precondition clearly mitigated LPS-triggered ATDC5 cell injury. Additionally, TMP down-regulated MyD88 expression in LPS-treated ATDC5 cells, as well as overexpression of MyD88 overturned the impacts of TMP on LPS-induced cell injury in ATDC5 cells. Beyond that, TMP restrained LPS-triggered the activations of NF-κB and p38MAPK via repression of MyD88. Conclusion The above consequences exhibited that TMP exhibited a protective effect to lighten LPS-caused cell damage via mediating MyD88/NF-κB/p38MAPK pathways. These findings suggested that TMP perhaps an effective agent for the clinical treatment of OA.
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- 2019
9. Potentially functional polymorphisms in aminoacyl-tRNA synthetases genes are associated with breast cancer risk in a Chinese population
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Hongxia Ma, Zhenzhen Qin, Jiaping Chen, Yanru Wang, Yisha He, Jianhang Gong, Xiaoxiang Guan, Yue Jiang, Zhibin Hu, Guangfu Jin, and Hongbing Shen
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Cancer Research ,Single-nucleotide polymorphism ,Odds ratio ,Biology ,Bioinformatics ,medicine.disease_cause ,medicine.disease ,Confidence interval ,Breast cancer ,medicine ,HARS ,Carcinogenesis ,Live birth ,Molecular Biology ,Gene - Abstract
Aminoacyl-tRNA synthetases (ARSs) are responsible for cellular protein synthesis and cell viability involving in various process of tumorigenesis. We hypothesized that genetic variants in core ARSs genes may play an important role in the development of breast cancer. Thus, we conducted a case–control study including 1064 breast cancer cases and 1073 cancer-free controls to evaluate the associations of 28 potentially functional polymorphisms in 12 core ARSs genes (AARS, CARS, EPRS, HARS, KARS, LARS, MARS, QARS, RARS, VARS, WARS, and YARS) with breast cancer risk. We found significant associations with the risk of breast cancer for rs34087264 in AARS [odds ratio (OR) = 1.15, 95% confidence interval (CI) = 1.01–1.31], rs801186 in HARS (OR = 1.29, 95% CI = 1.08–1.54), rs193466 in RARS (OR = 1.17, 95% CI = 1.02–1.35), and rs2273802 in WARS (OR = 1.14, 95% CI = 1.01–1.30). We further observed significant interactions between rs2273802 and age at the first live birth (P = 0.041), and between rs801186 and age on breast cancer risk (P = 0.018). Combined analysis of these four SNPs showed a significant allele-dosage association between the number of risk alleles and breast cancer risk (Ptrend = 2.00 × 10−4). Compared with individuals with “0–2” risk alleles, those carrying “3,” “4,” or “5 or more” risk alleles had a 1.32 (95% CI = 1.07–1.64), 1.48 (95% CI = 1.45–1.91), or 1.60 folds (95% CI = 1.06–2.41) risk of breast cancer, respectively. These findings indicate that genetic variants in core ARSs genes may modify the individual susceptibility to breast cancer in Chinese population. © 2014 Wiley Periodicals, Inc.
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- 2014
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10. Three new dihydroagarofuran sesquiterpenoids from Celastrus orbiculatus
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Yuanqiang Guo, Peng Zhao, Da-Qing Jin, Jing Xu, Chunfeng Xie, Shaonan Wang, and Yisha He
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Celastrus orbiculatus ,chemistry.chemical_compound ,chemistry ,biology ,Stereochemistry ,Botany ,Plant Science ,Sesquiterpene ,biology.organism_classification ,Agronomy and Crop Science ,Biochemistry ,Two-dimensional nuclear magnetic resonance spectroscopy ,Biotechnology - Abstract
Three new β -dihydroagarofuran sesquiterpene polyesters, 1 β -acetoxy-8 α ,9 β -dibenzoyloxy-13-nicotinoyloxy- β -dihydroagarofuran ( 1 ), 1 β ,2 β -diacetoxy-9 α -benzoyloxy-13-nicotinoyloxy- β -dihydroagarofuran ( 2 ), and 6 α ,8 α ,9 β ,13-tetraacetoxy-1 β -cinnamoyloxy-2 β ,4 α -dihydroxy- β -dihydroagarofuran ( 3 ) were isolated from the fruits of Celastrus orbiculatus Thunb. Their structures were determined by means of extensive spectroscopic analyses (IR, ESIMS, HRESIMS, 1D and 2D NMR).
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- 2012
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11. Genetic variation in a hsa-let-7 binding site in RAD52 is associated with breast cancer susceptibility
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Yisha He, Jiaping Chen, Hongbing Shen, Xiaoan Liu, Hongxia Ma, Yanru Wang, Xiaoxiang Guan, Juncheng Dai, Zhibin Hu, Guangfu Jin, Shui Wang, Jialei Xue, Yue Jiang, and Zhenzhen Qin
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Risk ,Untranslated region ,China ,Cancer Research ,Breast Neoplasms ,Single-nucleotide polymorphism ,Biology ,Polymorphism, Single Nucleotide ,Cell Line ,Breast cancer ,Gene Frequency ,microRNA ,Genetic variation ,medicine ,Humans ,Genetic Predisposition to Disease ,Allele ,Binding site ,3' Untranslated Regions ,Gene ,Genetic Association Studies ,Binding Sites ,General Medicine ,medicine.disease ,Rad52 DNA Repair and Recombination Protein ,Gene Expression Regulation, Neoplastic ,MicroRNAs ,Case-Control Studies ,Cancer research ,Female ,RNA Interference ,Protein Binding - Abstract
Genetic variants may influence miRNA-mRNA interaction through modulate binding affinity, creating or destroying miRNA-binding sites. Twenty-four single nucleotide polymorphisms (SNPs) that were predicted to affect the binding affinity of breast cancer-related miRNAs to 3'-untranslated regions (UTR) of known genes were genotyped in 878 breast cancer cases and 900 controls in Chinese women. Three promising SNPs (rs10494836, rs10857748 and rs7963551) were further validated in additional 914 breast cancer cases and 967 controls. The variant allele (C) of rs7963551 at 3'-UTR of RAD52 showed a consistently reduced breast cancer risk in two stages with a combined odds ratio (OR) of 0.84 [95% confidence interval (CI) = 0.75-0.95], which was more prominent among women with early age at first live birth (OR = 0.71, 95% CI = 0.58-0.87). A significant interaction was observed between rs7963551 and age at first live birth on breast cancer risk (P for interaction = 0.04). Luciferase activity assay showed a higher expression level for rs7963551 C allele as compared with A allele (P = 5.19 × 10(-3) for MCF-7 cell lines), which might be due to a reduced inhibition from a weakened binding capacity of miRNA to 3'-UTR of RAD52 harboring C allele. These findings indicate that rs7963551 located at hsa-let-7 binding site may alter expression of RAD52 through modulating miRNA-mRNA interaction and contribute to the development of breast cancer in Chinese women.
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- 2012
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12. neo-Clerodane diterpenes from Ajuga ciliata and their inhibitory activities on LPS-induced NO production
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Lei Zhang, Yuanqiang Guo, Da-Qing Jin, Yisha He, Yu-Shan Li, Ping Guo, and Jing Xu
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Ajuga ciliata ,Chemistry ,Stereochemistry ,Clerodane Diterpenes ,Plant Science ,No production ,Inhibitory postsynaptic potential ,Agronomy and Crop Science ,Biochemistry ,Biotechnology - Abstract
Two new neo -clerodane diterpenes, (12 S )-6 α -acetoxy-4 α ,18-epoxy-12-hydroxy-19-tigloyloxy- neo -clerod-13-en-15,16-olide ( 1 ) and 6 α ,18-diacetoxy-4 α -hydroxy-19-tigloyloxy- neo -clerod-13-en-15,16-olide ( 2 ), along with three known analogs ( 3 – 5 ) have been isolated from the whole plants of Ajuga ciliata Bunge. Their structures were elucidated on the basis of spectroscopic data analyses (IR, ESI-MS, HR-ESI-MS, HMQC, HMBC, COSY, and NOESY). The inhibitory activities on LPS-induced NO production of these diterpenes were evaluated and compounds 1 and 5 showed inhibitory effects.
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- 2012
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13. Genetic variations in the flanking regions of miR-101-2 are associated with increased risk of breast cancer
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Yongmei Yin, Hongbing Shen, Zhibin Hu, Juncheng Dai, Jiaping Chen, Yue Jiang, Guangfu Jin, Zhenzhen Qin, Yanru Wang, Yisha He, and Hongxia Ma
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Oncology ,Epidemiology ,5' Flanking Region ,lcsh:Medicine ,Bioinformatics ,Breast Tumors ,Genotype ,3' Flanking Region ,lcsh:Science ,Multidisciplinary ,Obstetrics and Gynecology ,Genetic Epidemiology ,Medicine ,Female ,Cancer Epidemiology ,Research Article ,Risk ,medicine.medical_specialty ,Breast Neoplasms ,Single-nucleotide polymorphism ,Biology ,Polymorphism, Single Nucleotide ,Molecular Genetics ,Breast cancer ,Internal medicine ,Breast Cancer ,Genetic variation ,Genetics ,Cancer Genetics ,Genetic predisposition ,medicine ,Humans ,Gene Regulation ,Genetic Predisposition to Disease ,Allele ,Alleles ,lcsh:R ,Case-control study ,Cancers and Neoplasms ,Genetic Variation ,Cancer ,medicine.disease ,MicroRNAs ,RNA processing ,Case-Control Studies ,Genetics of Disease ,Genetic Polymorphism ,lcsh:Q ,Gene expression ,Population Genetics - Abstract
Genetic variants in human microRNA (miRNA) genes may alter mature miRNA processing and/or target selection, and likely contribute to cancer susceptibility and disease progression. Previous studies have suggested that miR-101 may play important roles in the development of cancer by regulating key tumor-associated genes. However, the role of single nucleotide polymorphisms (SNPs) of miR-101 in breast cancer susceptibility remains unclear. In this study, we genotyped 11 SNPs of the miR-101 genes (including miR-101-1 and miR-101-2) in a case-control study of 1064 breast cancer cases and 1073 cancer-free controls. The results revealed that rs462480 and rs1053872 in the flank regions of pre-miR-101-2 were significantly associated with increased risk of breast cancer (rs462480 AC/CC vs AA: adjusted OR = 1.182, 95% CI: 1.030-1.357, P = 0.017; rs1053872 CG/GG vs CC: adjusted OR = 1.179, 95% CI: 1.040-1.337, P = 0.010). However, the remaining 9 SNPs were not significantly associated with risk of breast cancer. Additionally, combined analysis of the two high-risk SNPs revealed that subjects carrying the variant genotypes of rs462480 and rs1053872 had increased risk of breast cancer in a dose-response manner (P(trend) = 0.002). Compared with individuals with "0-1" risk allele, those carrying "2-4" risk alleles had 1.29-fold risk of breast cancer. In conclusion, these findings suggested that the SNPs rs462480 and rs1053872 residing in miR-101-2 gene may have a solid impact on genetic susceptibility to breast cancer, which may improve our understanding of the potential contribution of miRNA SNPs to cancer pathogenesis.
- Published
- 2014
14. Genetic variants at 8q24 are associated with risk of esophageal squamous cell carcinoma in a Chinese population
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Jingyu Chen, Jiangbo Du, Yisha He, Guangfu Jin, Chen Zhu, Hongxia Ma, Min Sun, Xun Zhu, Ningbin Dai, Cheng Wang, Meng Zhu, Ming-feng Zheng, Haiyong Gu, Juncheng Dai, Hongbing Shen, Yong Ji, and Zhibin Hu
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Oncology ,Male ,Cancer Research ,medicine.medical_specialty ,China ,Esophageal Neoplasms ,Genotype ,Genome-wide association study ,Biology ,Adenocarcinoma ,GPI-Linked Proteins ,Polymorphism, Single Nucleotide ,Gene Frequency ,Antigens, Neoplasm ,Risk Factors ,Stomach Neoplasms ,Internal medicine ,medicine ,Humans ,Genetic Predisposition to Disease ,esophageal cancer ,Esophagus ,Allele frequency ,PSCA ,Stomach ,gastric cancer ,Case-control study ,Cancer ,Genetic Variation ,8q24 ,General Medicine ,Original Articles ,Esophageal cancer ,Middle Aged ,medicine.disease ,digestive system diseases ,Neoplasm Proteins ,medicine.anatomical_structure ,Case-Control Studies ,genome-wide association studies ,Carcinoma, Squamous Cell ,Female ,Esophageal Squamous Cell Carcinoma ,Chromosomes, Human, Pair 8 ,Genome-Wide Association Study - Abstract
Esophageal cancer and gastric cancer have shared risk factors and inherited susceptibility. Recent genome-wide association studies have identified multiple genetic loci associated with gastric cancer risk, which may also involve in the development of esophageal cancer. Herein, we evaluated the relationship of gastric cancer risk-related variants at 1q22, 3q13.3, 5p13.1, and 8q24 with the risk of esophageal squamous cell carcinoma (ESCC) in a Chinese population with a case–control study (2139 cases and 2273 controls). We found that the T allele of rs2294008, an intronic variant of the PSCA gene at 8q24 that was previously associated with an increased risk of gastric cancer, was inversely associated with a decreased risk of ESCC (odds ratio = 0.90; 95% confidence interval, 0.81–0.99; P = 0.034). Of interest, the association of rs2294008 with ESCC was consistent with that observed in esophageal adenocarcinoma and ESCC in Caucasian populations. However, no significant associations were observed for the other three variants at 1q22 (rs4072037), 3q13.31 (rs9841504), and 5p13.1 (rs13361707). Our findings suggest that the susceptibility locus of PSCA at 8q24 may be a double-edged sword, as modulator between the carcinogenesis processes of stomach and esophagus.
- Published
- 2013
15. Potentially functional polymorphisms in aminoacyl-tRNA synthetases genes are associated with breast cancer risk in a Chinese population
- Author
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Yisha, He, Jianhang, Gong, Yanru, Wang, Zhenzhen, Qin, Yue, Jiang, Hongxia, Ma, Guangfu, Jin, Jiaping, Chen, Zhibin, Hu, Xiaoxiang, Guan, and Hongbing, Shen
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Adult ,China ,Adolescent ,Breast Neoplasms ,Middle Aged ,Polymorphism, Single Nucleotide ,Amino Acyl-tRNA Synthetases ,Young Adult ,Asian People ,Case-Control Studies ,Odds Ratio ,Humans ,Female ,Genetic Predisposition to Disease ,Breast - Abstract
Aminoacyl-tRNA synthetases (ARSs) are responsible for cellular protein synthesis and cell viability involving in various process of tumorigenesis. We hypothesized that genetic variants in core ARSs genes may play an important role in the development of breast cancer. Thus, we conducted a case-control study including 1064 breast cancer cases and 1073 cancer-free controls to evaluate the associations of 28 potentially functional polymorphisms in 12 core ARSs genes (AARS, CARS, EPRS, HARS, KARS, LARS, MARS, QARS, RARS, VARS, WARS, and YARS) with breast cancer risk. We found significant associations with the risk of breast cancer for rs34087264 in AARS [odds ratio (OR) = 1.15, 95% confidence interval (CI) = 1.01-1.31], rs801186 in HARS (OR = 1.29, 95% CI = 1.08-1.54), rs193466 in RARS (OR = 1.17, 95% CI = 1.02-1.35), and rs2273802 in WARS (OR = 1.14, 95% CI = 1.01-1.30). We further observed significant interactions between rs2273802 and age at the first live birth (P = 0.041), and between rs801186 and age on breast cancer risk (P = 0.018). Combined analysis of these four SNPs showed a significant allele-dosage association between the number of risk alleles and breast cancer risk (Ptrend = 2.00 × 10(-4) ). Compared with individuals with "0-2" risk alleles, those carrying "3," "4," or "5 or more" risk alleles had a 1.32 (95% CI = 1.07-1.64), 1.48 (95% CI = 1.45-1.91), or 1.60 folds (95% CI = 1.06-2.41) risk of breast cancer, respectively. These findings indicate that genetic variants in core ARSs genes may modify the individual susceptibility to breast cancer in Chinese population.
- Published
- 2013
16. New loci associated with chronic hepatitis B virus infection in Han Chinese
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Guangfu Jin, Yao Liu, Li Liu, Haitao Yang, Guoming Du, Weiping Zhou, Yuchun Zhou, Yisha He, Ying Wang, Qungang Wang, Minjie Chu, Kaipeng Xie, Gangqiao Zhou, Jiachun Lu, Jibin Liu, Jianjun Liu, Xiangjun Zhai, Wei Hua Jia, Zhibin Hu, Juan Wen, Minquan Cao, Liguo Zhu, Li Wang, Yongyong Shi, Juncheng Dai, Shengping Li, Yuan Yang, and Hongbing Shen
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Male ,Han chinese ,HLA-DP Antigens ,Population ,Genome-wide association study ,HLA-C Antigens ,Biology ,Polymorphism, Single Nucleotide ,Virus ,Hepatitis B, Chronic ,Asian People ,Polymorphism (computer science) ,HLA-DQ Antigens ,Genetics ,medicine ,Humans ,Genetic Predisposition to Disease ,education ,education.field_of_study ,Case-control study ,virus diseases ,Odds ratio ,Hepatitis B ,medicine.disease ,Virology ,digestive system diseases ,Genetic Loci ,Case-Control Studies ,Immunology ,Carrier State ,Ubiquitin-Conjugating Enzymes ,Chromosomes, Human, Pair 6 ,Female ,Genome-Wide Association Study - Abstract
Chronic hepatitis B virus (HBV) infection is a challenging global health problem. To identify genetic loci involved in chronic HBV infection, we designed a three-phase genome-wide association study in Han Chinese populations. The discovery phase included 951 HBV carriers (cases) and 937 individuals who had naturally cleared HBV infection (controls) and was followed by independent replications with a total of 2,248 cases and 3,051 controls and additional replications with 1,982 HBV carriers and 2,622 controls from the general population. We identified two new loci associated with chronic HBV infection: rs3130542 at 6p21.33 (near HLA-C, odds ratio (OR) = 1.33, P = 9.49 × 10(-14)) and rs4821116 at 22q11.21 (in UBE2L3, OR = 0.82, P = 1.71 × 10(-12)). Additionally, we replicated the previously identified associations of HLA-DP and HLA-DQ variants at 6p21.32 with chronic HBV infection. These findings highlight the importance of HLA-C and UBE2L3 in the clearance of HBV infection in addition to HLA-DP and HLA-DQ.
- Published
- 2013
17. Potentially functional polymorphisms in ATG10 are associated with risk of breast cancer in a Chinese population
- Author
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Hongbing Shen, Zhenzhen Qin, Yisha He, Zhibin Hu, Hongxia Ma, Guangfu Jin, Jialei Xue, Jiaping Chen, and Xiaoan Liu
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Adult ,Linkage disequilibrium ,China ,ATG5 ,Vesicular Transport Proteins ,Estrogen receptor ,Autophagy-Related Proteins ,Genome-wide association study ,Single-nucleotide polymorphism ,Breast Neoplasms ,General Medicine ,Odds ratio ,Biology ,Middle Aged ,Bioinformatics ,medicine.disease ,Polymorphism, Single Nucleotide ,Breast cancer ,Progesterone receptor ,Ubiquitin-Conjugating Enzymes ,Genetics ,medicine ,Humans ,Female ,Genetic Predisposition to Disease - Abstract
Autophagy is a cellular process directed at recycling of cellular proteins and removal of intracellular microorganisms, which is important for balancing sources of energy at critical times in development and in response to nutrient stress. It has been reported to be a critical process in cancer initiation and progression. We hypothesized that genetic variants in critical genes of autophagy may be involve in the development of breast cancer. Thus, we systematically screened 14 potentially functional polymorphisms in six autophagy-related genes (ATG3, ATG5, ATG7, ATG10, and ATG12 and LC3) that are core components in autophagosome formation. We conducted a case-control study including 1064 breast cancer cases and 1073 cancer-free controls to evaluate the associations of these variants with breast cancer risk. We found that rs1864182 and rs10514231 in ATG10 were significantly associated with a decreased risk of breast cancer [odds ratios (OR)=0.77, 95% confidence interval (CI): 0.61-0.96, P=0.023; and OR=0.75, 95% CI: 0.59-0.93, P=0.010, respectively]. Similar protective effects for both loci were observed between subgroups stratified by ages at diagnosis/recruitment, menarche and first live birth, and status of menopause, estrogen receptor (ER) and progesterone receptor (PR). These results suggest that genetic variants in ATG10 may implicate with breast cancer susceptibility in Chinese population. Further large and functional studies are needed to confirm our findings.
- Published
- 2013
18. Genetic variants at 12p11 and 12q24 are associated with breast cancer risk in a Chinese population
- Author
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Hongxia Ma, Yisha He, Guangfu Jin, Zhibin Hu, Songyu Cao, Yanru Wang, Xiaoxiang Guan, Hongbing Shen, and Zhenzhen Qin
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Oncology ,Genetic Screens ,Non-Clinical Medicine ,Epidemiology ,lcsh:Medicine ,Genome-wide association study ,Bioinformatics ,Risk Factors ,Genotype ,Odds Ratio ,lcsh:Science ,Multidisciplinary ,Cancer Risk Factors ,Medicine ,Female ,Cancer Epidemiology ,Research Article ,medicine.medical_specialty ,Genetic Causes of Cancer ,Breast Neoplasms ,Biology ,Polymorphism, Single Nucleotide ,Breast cancer ,Asian People ,Internal medicine ,Genetics ,medicine ,Humans ,Genetic Association Studies ,Chromosomes, Human, Pair 12 ,Health Care Policy ,Population Biology ,Genetic heterogeneity ,lcsh:R ,Case-control study ,Genetic variants ,Computational Biology ,Health Risk Analysis ,Human Genetics ,Odds ratio ,medicine.disease ,Confidence interval ,Biomarker Epidemiology ,Case-Control Studies ,Genetics of Disease ,Genetic Polymorphism ,lcsh:Q ,Population Genetics ,Genome-Wide Association Study - Abstract
BACKGROUND: A recent genome-wide association study (GWAS) has identified three new breast cancer susceptibility loci at 12p11, 12q24 and 21q21 in populations of European descent. However, because of the genetic heterogeneity, it is largely unknown for the role of these loci in the breast cancer susceptibility in the populations of non-European descent. METHODOLOGY/PRINCIPAL FINDINGS: Here, we genotyped three variants (rs10771399 at 12p11, rs1292011 at 12q24 and rs2823093 at 21q21) in an independent case-control study with a total of 1792 breast cancer cases and 1867 cancer-free controls in a Chinese population. We found that rs10771399 and rs1292011 were significantly associated with risk of breast cancer with per-allele odds ratios (ORs) of 0.85 (95% confidence interval (CI): 0.76-0.96; P = 0.010) and 0.84 (95% CI: 0.76-0.95; P = 4.50×10(-3)), respectively, which was consistent with those reported in populations of European descent. Similar effects were observed between ER/PR positive and negative breast cancer for both loci. However, we did not found significant association between rs2823093 and breast cancer risk (OR = 0.97, 95%CI = 0.76-1.24; P = 0.795). CONCLUSIONS/SIGNIFICANCE: Our results indicate that genetic variants at 12p11 and 12q24 may also play an important role in breast cancer development in Chinese women.
- Published
- 2013
19. Genetic variants at 4q21, 4q23 and 12q24 are associated with esophageal squamous cell carcinoma risk in a Chinese population
- Author
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Hongxia Ma, Haiyong Gu, Hongbing Shen, Xiaofei Chen, Zhibin Hu, Yisha He, Guangfu Jin, Lin Xu, Jiangbo Du, Yong Gao, Jing Xu, and Chen Zhu
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Oncology ,Male ,Risk ,medicine.medical_specialty ,Esophageal Neoplasms ,Genome-wide association study ,Single-nucleotide polymorphism ,Biology ,Bioinformatics ,Polymorphism, Single Nucleotide ,Asian People ,Polymorphism (computer science) ,Internal medicine ,Genetics ,medicine ,Carcinoma ,Humans ,Genetic Predisposition to Disease ,Genetics (clinical) ,Chromosomes, Human, Pair 12 ,Case-control study ,ADH1B ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Case-Control Studies ,Carcinoma, Squamous Cell ,Female ,Chromosomes, Human, Pair 4 - Abstract
A recently published genome-wide association study (GWAS) in European populations identified several loci at 4q21, 4q23 and 12q24 that were associated with risk of upper aerodigestive tract (UADT) cancers, including esophageal squamous cell carcinoma (ESCC). In the current study, we conducted a case-control study in a Chinese population including 2,139 ESCC cases and 2,273 controls to evaluate the associations of six reported single nucleotide polymorphisms (SNPs) (rs1494961, rs1229984, rs1789924, rs971074, rs671 and rs4767364) with risk of ESCC. We found significant association with risk of ESCC for four SNPs, including rs1494961 in HEL308 at 4q21 [odds ratio (OR) = 1.15, 95 % confidence interval (CI) = 1.05-1.26], rs1229984 in ADH1B at 4q23 (OR = 1.24, 95 % CI = 1.13-1.36) and rs1789924 near ADH1C at 4q23 (OR = 1.20, 95 % CI = 1.03-1.39), and rs671 in ALDH2 at 12q24 (OR = 0.83, 95 % CI = 0.75-0.91). Combined analysis of these four SNPs showed a significant allele-dosage effect on ESCC risk for individuals with different number of risk alleles (P trend = 2.23 × 10(-11)). Compared with individuals with "0-2" risk allele, those carrying "3", "4" or "5 or more" risk alleles had 1.42-, 1.66-, or 1.76-fold risk of ESCC, respectively. Thus, our findings indicate that rs1494961 at 4q21, rs1229984 and rs1789924 at 4q23, and rs671 at 12q24 may be used as genetic biomarkers for ESCC susceptibility in Chinese population.
- Published
- 2012
20. Lathyrane diterpenes from Euphorbia prolifera and their inhibitory activities on LPS-induced NO production
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Jing Xu, Da-qing Jin, Haibin Song, Yuanqiang Guo, and Yisha He
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Pharmacology ,Lipopolysaccharides ,Mice ,Molecular Structure ,Euphorbia ,Plant Extracts ,Drug Discovery ,Animals ,General Medicine ,Microglia ,Diterpenes ,Nitric Oxide ,Cell Line - Abstract
A new lathyrane diterpene (1), an unreported spectroscopic data lathyrane diterpenene (2), and two known analaogues (3 and 4) have been isolated from Euphorbia prolifera. Their structures were elucidated as (12E,2S,3S,4R,5R,6S,9S,11S,15R)-3-butyryloxy-5,15-diacetoxy-6,17-epoxylathyra- 12-en-14-one (1), (12E,2S,3S,4R,5R,6S,9S,11S,15R)-3-propionyloxy-5,15-diacetoxy-6,17- epoxylathyra-12-en-14-one (2), (12E,2S,3S,4R,5R,6S,9S,11S,15R)-3-benzoyloxy-5,15-diacetoxy -6,17-epoxylathyra-12-en-14-one (3), and 15-O-acetyl-17-hydroxyjolkinol (4) by spectroscopic methods (IR, ESIMS, HR-ESIMS, NMR, and X-ray crystallography). The inhibitory activities on LPS-induced NO production of these diterpenes were evaluated and compounds 1, 3 and 4 showed inhibitory effects.
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- 2012
21. Evaluation of functional genetic variants at 6q25.1 and risk of breast cancer in a Chinese population.
- Author
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Yanru Wang, Yisha He, Zhenzhen Qin, Yue Jiang, Guangfu Jin, Hongxia Ma, Juncheng Dai, Jiaping Chen, Zhibin Hu, Xiaoxiang Guan, and Hongbing Shen
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BREAST cancer patients ,BREAST cancer treatment ,BREAST surgery ,GENOMES ,FIBRINOGEN polymorphisms - Abstract
Introduction Several genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) at 6q25.1 that are associated with breast cancer susceptibility. However, the exact causal variant(s) in this region has not been clarified.Introduction Several genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) at 6q25.1 that are associated with breast cancer susceptibility. However, the exact causal variant(s) in this region has not been clarified.Introduction Several genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) at 6q25.1 that are associated with breast cancer susceptibility. However, the exact causal variant(s) in this region has not been clarified. Introduction Several genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) at 6q25.1 that are associated with breast cancer susceptibility. However, the exact causal variant(s) in this region has not been clarified.Introduction Several genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) at 6q25.1 that are associated with breast cancer susceptibility. However, the exact causal variant(s) in this region has not been clarified. Methods In the present study, we genotyped six potentially functional SNPs within CCDC170 and ESR1 gene regions at 6q25.1 and accessed their associations with risk of breast cancer in a study of 1,064 cases and 1,073 cancer-free controls in Chinese women. Biological function of the risk variant was further evaluated by laboratory experimentsResults Breast cancer risk was significantly associated with three SNPs located at 6q25.1: rs9383935 in CCDC170 and rs2228480 and rs3798758 in ESR1, with variant-allele attributed odds ratio (OR) of 1.38 (95% confidence interval (CI): 1.20 - 1.57, P = 2.21 × 10
-6 ), 0.84 (95% CI: 0.72 - 0.98, P = 0.025) and 1.19 (95% CI: 1.04-1.37, P = 0.013), respectively. The functional variant rs9383935 is in high linkage disequilibrium (LD) with GWAS-reported top-hit SNP (rs2046210), but only rs9383935 showed a strong independent effect in conditional regression analysis. The rs9383935 risk allele A showed a decreased activity of reporter gene in both MCF-7 and BT-474 breast cancer cell lines, which might be due to an altered binding capacity of miR-27a to the 3'untranslated region (3'UTR) sequence of CCDC170. Real-time quantitative reverse transcription PCR confirmed the correlation between rs9383935 genotypes and CCDC170 expression levels. Conclusions This study suggests that the functional variant rs9383935, located at the 3'UTR of CCDC170, may be one candidate of the causal variants at 6q25.1 that modulate risk of breast cancer. [ABSTRACT FROM AUTHOR]- Published
- 2014
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