22 results on '"HAOCHANG HU"'
Search Results
2. Hypermethylated Promoters of Secreted Frizzled-Related Protein Genes are Associated with Colorectal Cancer
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Cong Zhou, Bin Li, Jun Zhao, Yong Yang, Ranran Pan, Haochang Hu, Yi Huang, Shiwei Duan, and Tiangong Wang
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Adult ,Male ,0301 basic medicine ,Cancer Research ,Colorectal cancer ,Biology ,Sensitivity and Specificity ,Pathology and Forensic Medicine ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Plasmid ,law ,Gene expression ,Biomarkers, Tumor ,medicine ,Humans ,Promoter Regions, Genetic ,Gene ,Polymerase chain reaction ,Aged ,Membrane Proteins ,Promoter ,General Medicine ,Methylation ,DNA Methylation ,Middle Aged ,medicine.disease ,digestive system diseases ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,DNA methylation ,Cancer research ,Intercellular Signaling Peptides and Proteins ,Female ,Colorectal Neoplasms - Abstract
Colorectal cancer (CRC) is one of the leading causes of death worldwide. Aberrant DNA methylation has been recognized as one of the most common molecular alterations in CRC. The goal of this study was to investigate the diagnostic value of SFRP1 and SFRP2 methylation for CRC. A total of 80 pairs of CRC patients were recruited to test the association of SFRP1 and SFRP2 promotor methylation with CRC. Methylation assay was performed using quantitative methylation-specific polymerase chain reaction (qMSP) method. In this study, we found the methylation levels of SFRP1 and SFRP2 in CRC tumor tissues were significantly higher than those in the adjacent non-tumor tissues (SFRP1: P = 2E-5; SFRP2: P = 0.014). Further bioinformatics analysis of TCGA data confirmed the association of the two genes with CRC (SFRP1: P = 7E-21; SFRP2: P = 5E-24). Luciferase reporter gene assay showed that the recombinant plasmids with SFRP1 and SFRP2 fragments could significantly enhance promoter activity (SFRP1: P = 0.002; SFRP2: P = 0.004). In addition, SFRP1 and SFRP2 methylation were inversely correlated with the mRNA expression displayed by TCGA data mining (SFRP1: r = -0.432, P = 4E-11; SFRP2: r = -0.478, P = 1E-13). GEO data analysis indicated that SFRP1 and SFRP2 expression were increased in three CRC cell lines (COLO320, HCT116 and HT29) after 5'-AZA-deoxycytidine treatment, suggesting that DNA methylation played an important role in regulating gene expression of the two genes. Our results confirmed that promoter methylation of SFRP1 and SFRP2 contributed to the risk of CRC.
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- 2018
3. Calcified Aortic Valve Disease in Patients With Familial Hypercholesterolemia
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Shuangshuang Wang, Xiaomin Chen, Ji cheng, Shaoyi Lin, and Haochang Hu
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0301 basic medicine ,medicine.medical_specialty ,Angiotensin-Converting Enzyme Inhibitors ,Familial hypercholesterolemia ,Disease ,030204 cardiovascular system & hematology ,Xanthoma ,Risk Assessment ,Pathogenesis ,Hyperlipoproteinemia Type II ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,Angiotensin Receptor Antagonists ,0302 clinical medicine ,Aortic valve replacement ,Risk Factors ,Internal medicine ,Prevalence ,Medicine ,Animals ,Humans ,Adverse effect ,Pharmacology ,Heart Valve Prosthesis Implantation ,business.industry ,Anticholesteremic Agents ,Calcinosis ,medicine.disease ,Aortic Valve Disease ,030104 developmental biology ,Cholesterol ,Treatment Outcome ,Cardiology ,Disease Progression ,Aortic valve calcification ,Cardiology and Cardiovascular Medicine ,business ,Dyslipidemia ,Biomarkers - Abstract
Familial hypercholesterolemia (FH) is a rare autosomal gene deficiency disease with increased low-density lipoprotein cholesterol, xanthoma, and premature coronary heart disease. Calcified aortic valve disease (CAVD) is prevalent in FH patients, resulting in adverse events and heavy health care burden. Aortic valve calcification is currently considered an active biological process, which shares several common risk factors with atherosclerosis, including aging, hypertension, dyslipidemia, and so on. Unfortunately, the pathogenesis and therapy of CAVD in FH are still controversial. There is no pharmacological intervention recommended to delay the development of CAVD in FH, and the only effective treatment for severe CAVD is aortic valve replacement. In this review, we summarize the detailed description of the pathophysiology, molecular mechanism, risk factors, and treatment of CAVD in FH patients.
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- 2020
4. The Role of Transcription Factor 21 in Epicardial Cell Differentiation and the Development of Coronary Heart Disease
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Shuangshuang Wang, Shaoyi Lin, Xiaomin Chen, and Haochang Hu
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0301 basic medicine ,Mesoderm ,Vascular smooth muscle ,Mini Review ,Cellular differentiation ,epicardial cells differentiation ,Biology ,Cell fate determination ,Cell and Developmental Biology ,03 medical and health sciences ,0302 clinical medicine ,transcription factor 21 ,Genetic predisposition ,medicine ,vascular smooth muscle cells ,coronary heart disease ,lcsh:QH301-705.5 ,development ,Transcription factor ,Heart development ,Mesenchymal stem cell ,Cell Biology ,Cell biology ,030104 developmental biology ,medicine.anatomical_structure ,lcsh:Biology (General) ,030220 oncology & carcinogenesis ,Developmental Biology - Abstract
Transcription factor 21 (TCF21) is specific for mesoderm and is expressed in the embryos’ mesenchymal derived tissues, such as the epicardium. It plays a vital role in regulating cell differentiation and cell fate specificity through epithelial-mesenchymal transformation during cardiac development. For instance, TCF21 could promote cardiac fibroblast development and inhibit vascular smooth muscle cells (VSMCs) differentiation of epicardial cells. Recent large-scale genome-wide association studies have identified a mass of loci associated with coronary heart disease (CHD). There is mounting evidence that TCF21 polymorphism might confer genetic susceptibility to CHD. However, the molecular mechanisms of TCF21 in heart development and CHD remain fundamentally problematic. In this review, we are committed to providing a detailed introduction of the biological roles of TCF21 in epicardial fate determination and the development of CHD.
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- 2020
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5. The alterations of mitochondrial DNA in coronary heart disease
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Xiaomin Chen, Shaoyi Lin, Ying Lin, Xiaofeng Xu, Haochang Hu, and Shuangshuang Wang
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0301 basic medicine ,Mitochondrial DNA ,Clinical Biochemistry ,Coronary Disease ,Oxidative phosphorylation ,Mitochondrion ,Bioinformatics ,medicine.disease_cause ,DNA, Mitochondrial ,Oxidative Phosphorylation ,Pathology and Forensic Medicine ,Angina ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Adenosine Triphosphate ,medicine ,Humans ,Myocardial infarction ,Molecular Biology ,business.industry ,medicine.disease ,Atherosclerosis ,Mitochondria ,Oxidative Stress ,030104 developmental biology ,chemistry ,030220 oncology & carcinogenesis ,Mutation ,business ,Reactive Oxygen Species ,Adenosine triphosphate ,Oxidative stress ,Human mitochondrial DNA haplogroup - Abstract
Coronary heart disease (CHD) is the major cause of death in modern society. CHD is characterized by atherosclerosis, which could lead to vascular cavity stenosis or obstruction, resulting in ischemic cardiac conditions such as angina and myocardial infarction. In terms of the mitochondrion, the main function is to produce adenosine triphosphate (ATP) for cells. And the alterations (including mutations, altered copy number and haplogroups) of mitochondrial DNA (mtDNA) are associated with the abnormal expression of oxidative phosphorylation (OXPHOS) system, resulting in mitochondrial dysfunction, then leading to perturbation on the electron transport chain and increased ROS generation and reduction in ATP level, contributing to ATP-producing disorders and oxidative stress, which may further accelerate development or vulnerability of atherosclerosis and myocardial ischemic injury. Therefore, the mtDNA defects may play an important role in making an early diagnosis, identifying disease-specific biomarkers and therapeutic targets, and predicting outcomes for patients with atherosclerosis and CHD. In this review, we aim to summarize the contribution of mtDNA mutations, altered mtDNA copy number and mtDNA haplogroups on the occurrence and development of CHD.
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- 2019
6. Diagnostic value of WIF1 methylation for colorectal cancer: a meta-analysis
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Xiuru Ying, Tianyi Huang, Bin Li, Tiangong Wang, Cong Zhou, Min Chen, Huihui Ji, Yong Yang, Ranran Pan, Danjie Jiang, Yanfei Chen, Yuehong Chen, Haochang Hu, and Shiwei Duan
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0301 basic medicine ,Oncology ,medicine.medical_specialty ,Colorectal cancer ,colorectal cancer ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,DNA methylation ,Receiver operating characteristic ,business.industry ,Area under the curve ,Methylation ,medicine.disease ,030104 developmental biology ,Tumor progression ,030220 oncology & carcinogenesis ,Meta-analysis ,Diagnostic odds ratio ,diagnostic value ,business ,WIF1 ,Meta-Analysis - Abstract
As a common antagonist of Wnt/β-catenin signaling, Wnt inhibitory factor 1 (WIF1) plays an important role in the tumor progression. The aim of our meta-analysis was to summarize the diagnostic value of WIF1 methylation in colorectal cancer (CRC). Eligible studies were retrieved by a systemic search among PubMed, Embase, CNKI, and Wanfang literature databases. The diagnostic value of WIF1 methylation for CRC was assessed by the summary receiver operating characteristics (SROC) test. Our meta-analysis of 12 studies between 1420 CRC samples and 946 control samples showed that WIF1 hypermethylation was significantly associated with CRC (P < 0.001, OR = 30.10, 95% CI = 19.48-46.50). WIF1 hypermethylation, as a diagnostic biomarker for CRC, has a pooled sensitivity of 0.40 (95% CI: 0.37-0.42), a pooled specificity of 0.95 (95% CI: 0.93-0.96), a pooled positive-likelihood ratio (PLR) of 8.65 (95% CI, 4.47-16.73), and a pooled negative-likelihood ratio (NLR) of 0.41 (95% CI, 0.30-0.55), a diagnostic odds ratio (DOR) of 26.86 (95% CI: 15.73-45.89), and an area under the curve (AUC) of 0.9115. In conclusion, our study established that WIF1 hypermethylation might be a promising diagnostic biomarker for CRC.
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- 2018
7. The role of TFPI2 hypermethylation in the detection of gastric and colorectal cancer
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Xiuru Ying, Haochang Hu, Jieer Ying, Shiwei Duan, Jingjing Li, Cheng Wang, Jie Zhong, Cong Zhou, Bin Li, Yuting Jiang, Xiaoying Chen, Dongping Wu, and Yong Yang
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0301 basic medicine ,Oncology ,Pathology ,medicine.medical_specialty ,Colorectal cancer ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,Internal medicine ,medicine ,Gastrointestinal cancer ,education ,Polymerase chain reaction ,education.field_of_study ,business.industry ,Cancer ,Methylation ,medicine.disease ,Tissue-factor-pathway inhibitor 2 ,030104 developmental biology ,030220 oncology & carcinogenesis ,DNA methylation ,Cancer cell ,business - Abstract
// Haochang Hu 1, * , Xiaoying Chen 1, * , Cheng Wang 2, * , Yuting Jiang 1 , Jingjing Li 3 , Xiuru Ying 1 , Yong Yang 1 , Bin Li 1 , Cong Zhou 1 , Jie Zhong 1 , Dongping Wu 2 , Jieer Ying 3 and Shiwei Duan 1 1 Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, China 2 Department of Medical Oncology, Shaoxing People’s Hospital, Shaoxing Hospital of Zhejiang University, Zhejiang 312000, China 3 Department of Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China * Co-first authors Correspondence to: Shiwei Duan, email: duanshiwei@nbu.edu.cn Jieer Ying, email: jieerying@aliyun.com Keywords: tissue factor pathway inhibitor 2, DNA methylation, gastric cancer, colorectal cancer, quantitative methylation-specific polymerase chain reaction Received: November 30, 2016 Accepted: August 28, 2017 Published: September 20, 2017 ABSTRACT Gastrointestinal cancer is a prevalent disease with high morbidity and mortality. Tissue factor pathway inhibitor 2 ( TFPI2 ) gene could protect the extracellular matrix of cancer cells from degradation and tumor invasion. The goal of our study was to estimate the diagnostic value of TFPI2 hypermethylation in gastric cancer (GC) and colorectal cancer (CRC). TFPI2 methylation was measured by quantitative methylation-specific polymerase chain reaction (qMSP) method in 114 GC and 80 CRC tissues and their paired non-tumor tissues. Our results showed that TFPI2 methylation was significantly higher in tumor tissues (GC: 29.940% vs. 12.785%, P 1.37). In conclusion, TFPI2 hypermethylation might be a promising diagnostic biomarker for GC and CRC.
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- 2017
8. A male-specific association between AGTR1 hypermethylation and coronary heart disease
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Siyu Mi, Huihui Ji, Nan Wu, Yi Huang, Jiyi Li, Haochang Hu, Xiaojing Li, Shiwei Duan, and Xiaomin Chen
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Male ,0301 basic medicine ,Oncology ,China ,medicine.medical_specialty ,males ,AGTR1 ,Coronary Disease ,Receptor, Angiotensin, Type 1 ,Pathogenesis ,03 medical and health sciences ,chemistry.chemical_compound ,Sex Factors ,0302 clinical medicine ,Text mining ,Asian People ,5-aza-2’-deoxycytidine ,Internal medicine ,Gene expression ,medicine ,angiotensin II receptor type 1 ,Humans ,HepG2 cells ,Gene ,Aged ,lcsh:R5-920 ,Angiotensin II receptor type 1 ,DNA methylation ,business.industry ,General Medicine ,Methylation ,Middle Aged ,Coronary heart disease ,030104 developmental biology ,CHD ,chemistry ,Case-Control Studies ,030220 oncology & carcinogenesis ,Female ,Deoxycytidine ,business ,lcsh:Medicine (General) ,Research Article - Abstract
The AGTR1 gene encodes angiotensin II receptor type 1, which is involved in cardiovascular diseases such as coronary heart disease (CHD). In the current study, we analyzed AGTR1 methylation level in a Han Chinese population by SYBR green-based quantitative methylation-specific PCR (qMSP). We collected blood samples from 761 CHD patients and 398 non-CHD controls at the Ningbo First Hospital. A data mining analysis was also performed to explore the association between AGTR1 methylation and AGTR1 gene expression, using datasets from the cBioPortal for Cancer Genomics and the Gene Expression Omnibus (GEO) database. Our results showed a significantly higher percentage of methylated reference (PMR) of AGTR1 in male CHD patients compared with male non-CHD controls (median PMR: 2.12% vs. 0.59%, p = 0.037). The data mining analysis showed that AGTR1 expression was significantly increased in human hepatoma HepG2 cells treated with the demethylation agent 5-aza-2'-deoxycytidine (fold = 3.12, p = 0.009). Further data mining analysis using the cholangiocarcinoma (TCGA, PanCancer Atlas) data indicated an inverse association between AGTR1 methylation and AGTR1 expression (r = -0.595, p = 1.29E-04). Overall, our results suggest that AGTR1 methylation is involved in the regulation of AGTR1 gene expression and that AGTR1 hypermethylation is associated with CHD in males. These findings may provide new clues about the pathogenesis of CHD.
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- 2019
9. Differences in Leukocyte Telomere Length between Coronary Heart Disease and Normal Population: A Multipopulation Meta-Analysis
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Fangzhong Huang, Haochang Hu, Shaoyi Lin, Yin Li, Ying Lin, Huihui Ji, Shiwei Duan, Xiaomin Chen, and Xiaofeng Xu
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0301 basic medicine ,Male ,medicine.medical_specialty ,lcsh:Medicine ,Subgroup analysis ,Coronary Disease ,Review Article ,030204 cardiovascular system & hematology ,Severity of Illness Index ,General Biochemistry, Genetics and Molecular Biology ,Cardiovascular death ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Severity of illness ,Medicine ,Humans ,cardiovascular diseases ,Telomere Shortening ,General Immunology and Microbiology ,business.industry ,lcsh:R ,Atherosclerotic disease ,Normal population ,General Medicine ,Telomere ,Coronary heart disease ,030104 developmental biology ,Meta-analysis ,Cardiology ,Female ,business - Abstract
Coronary heart disease (CHD) is one of the most common causes of death in the world. Numerous studies have shown that as the degree of atherosclerotic disease increases, leukocyte telomere length gradually decreases. Short telomeres increase the risk of all-cause death and cardiovascular death. However, the reported results are not consistent, since the experimental design method, the measurement method, and the disease outcome are different. Therefore, we searched five major literature databases (Pubmed, Web of science, Embase, CNKI, and Wangfang) and finally included 18 eligible articles (including 5,150 patients with CHD and 9341 controls). We found that telomere length in patients with CHD was significantly shorter than that in controls, and the telomere length was inversely correlated with the severity of CHD. Subgroup analysis showed that telomere shortening was the most significant in Asian patients with CHD, in CHD patients with an average age
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- 2019
10. Elevated methylation of cyclin dependent kinase inhibitor 2B contributes to the risk of coronary heart disease in women
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Xiaofeng Xu, Limin Xu, Liyuan Han, Deyi Lu, Yong Yang, Cong Zhou, Shiwei Duan, Yusheng Shen, Yi Huang, Yan Xu, Danjie Jiang, Haochang Hu, Bin Li, Nan Wu, Jiyi Li, Xuting Xu, Xiaomin Chen, and Huihui Ji
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0301 basic medicine ,Cancer Research ,medicine.medical_specialty ,Pathogenesis ,03 medical and health sciences ,Immunology and Microbiology (miscellaneous) ,Cyclin-dependent kinase ,Internal medicine ,CDKN2B ,Gene expression ,estrogen ,medicine ,cardiovascular drug ,coronary heart disease ,DNA methylation ,biology ,business.industry ,Kinase ,Articles ,General Medicine ,Methylation ,cyclin dependent kinase inhibitor 2B ,030104 developmental biology ,Endocrinology ,Simvastatin ,biology.protein ,business ,medicine.drug - Abstract
Cyclin dependent kinase inhibitor 2B (CDKN2B) encodes a cyclin-dependent kinase inhibitor that may enhance the formation of atherosclerotic plaques. The aim of the present study was to investigate the contribution of CDKN2B promoter methylation on the risk of coronary heart disease (CHD). The present results indicated a significant association between increased CDKN2B methylation and the risk of CHD (adjusted P=0.043). A breakdown analysis according to sex demonstrated that CDKN2B methylation was significantly associated with the risk of CHD in women (adjusted P=0.010), but not in men. A further breakdown analysis by age indicated a significant association of CHD in the women >60 years (P=0.024). Luciferase reporter gene assay results indicated that the CDKN2B promoter fragment significantly enhanced luciferase activity (P
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- 2018
11. Association between GPX3 promoter methylation and malignant tumors: A meta-analysis
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Shiwei Duan, Yin Li, Zhonghua Zheng, Cong Zhou, Bin Li, Chujia Chen, and Haochang Hu
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0301 basic medicine ,Oncology ,medicine.medical_specialty ,GPX3 ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Neoplasms ,Biomarkers, Tumor ,Medicine ,Humans ,Promoter Regions, Genetic ,Glutathione Peroxidase ,Receiver operating characteristic ,business.industry ,Cancer ,Cell Biology ,Odds ratio ,Methylation ,DNA Methylation ,medicine.disease ,Confidence interval ,030104 developmental biology ,030220 oncology & carcinogenesis ,Meta-analysis ,Lymphatic Metastasis ,DNA methylation ,business - Abstract
Glutathione peroxidase 3 (GPX3) has an important function of scavenging hydrogen peroxide and preventing cancer. The purpose of this meta-analysis was to analyze the relationship between GPX3 gene methylation and cancer and to further evaluate its diagnostic value for cancer. We screened eligible literatures from the PubMed, Embase, CNKI and Wanfang databases. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to measure the association of GPX3 methylation with cancer. Summary receiver operating characteristics (SROC) analysis was used to assess the diagnostic value of GPX3 methylation for cancer. A total of 17 eligible articles were included in the meta-analysis involving a total of 960 tumor samples and 445 non-tumor samples. The results showed that GPX3 hypermethylation was significantly associated with cancer (OR = 17.32, 95% CI = 8.22-36.51, P 0.00001). Compared with cancer patients without lymph node metastasis, cancer patients with lymph node metastasis were more associated with GPX3 hypermethylation (OR = 2.97, 95% CI = 1.53-5.76, P = 0.001). SROC analysis showed for GPX3 methylation was a promising biomarker for cancer risk (AUC = 0.89, pooled sensitivity = 0.93, pooled specificity = 0.54, NLR = 0.15, PLR = 2.05, DOR = 17.32). TCGA database bioinformatics analysis of 696 pairs of tumor and non-tumor tissues further validate the association of GPX3 methylation with the risk of cancer [cg21504918: 0.10 (0.08, 0.15) vs. 0.09 (0.08, 0.11), P = 5.8E-28; cg26638444: 0.05 (0.04, 011) vs. 0.04 (0.03, 0.06), P = 8.7E-29]. In summary, our study indicates that GPX3 methylation is associated with cancer and has the potential to become a broad-spectrum tumor screening marker and has a value in predicting tumor lymph node metastasis.
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- 2018
12. Elevated DRD4 promoter methylation increases the risk of Alzheimer's disease in males
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Guili Liu, Xiaohui Zhou, Ying Li, Liting Jiang, Danjie Jiang, Yunliang Wang, Xuting Xu, Dongjun Dai, Huihui Ji, Dongsheng Zhou, Lili Shen, Honglei Yin, Jinfeng Li, Lei Xu, Renjie Zhuo, Haochang Hu, Qin Zha, Shiwei Duan, Yuzheng Zhang, Wei Cui, Yu Liu, Qinwen Wang, Zhongming Chen, and Beibei Zhang
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Male ,0301 basic medicine ,Cancer Research ,medicine.medical_specialty ,Biochemistry ,03 medical and health sciences ,Sex Factors ,Alzheimer Disease ,Internal medicine ,mental disorders ,Genetics ,medicine ,Dopamine receptor D4 ,Humans ,Genetic Predisposition to Disease ,Promoter Regions, Genetic ,Molecular Biology ,Gene ,Genetic Association Studies ,Aged ,Aged, 80 and over ,biology ,Receptors, Dopamine D4 ,Case-control study ,Methylation ,DNA Methylation ,medicine.disease ,Molecular medicine ,Phenotype ,030104 developmental biology ,Endocrinology ,Oncology ,CpG site ,Case-Control Studies ,DNA methylation ,Cancer research ,biology.protein ,Molecular Medicine ,CpG Islands ,Alzheimer's disease ,Biomarkers - Abstract
Aberrant promoter methylation of multiple genes is associated with various diseases, including Alzheimer's disease (AD). The goal of the present study was to determine whether dopamine receptor D4 (DRD4) promoter methylation is associated with AD. In the current study, the methylation levels of the DRD4 promoter were measured in 46 AD patients and 61 controls using bisulfite pyrosequencing technology. The results of the present study demonstrated that DRD4 promoter methylation was significantly higher in AD patients than in controls. A further breakdown analysis by gender revealed that there was a significant association of DRD4 promoter methylation with AD in males (23 patients and 45 controls). In conclusion, the results of the present study demonstrated that elevated DRD4 promoter methylation was associated with AD risk in males.
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- 2016
13. The Alteration of Subtelomeric DNA Methylation in Aging-Related Diseases
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Shiwei Duan, Bin Li, and Haochang Hu
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0301 basic medicine ,Telomerase ,lcsh:QH426-470 ,Mini Review ,Biology ,telomerase ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,epigenetic modification ,Genetics ,telomere length ,subtelomeric DNA methylation ,Genetics (clinical) ,age-related disease ,Chromosome ,Methylation ,Subtelomere ,Telomere ,lcsh:Genetics ,030104 developmental biology ,CpG site ,chemistry ,030220 oncology & carcinogenesis ,DNA methylation ,Molecular Medicine ,DNA - Abstract
The telomere is located at the end of the chromosome and consists of a non-coding, repetitive DNA sequence. As the cell divides, the length of telomere gradually decreases. A very short telomere can terminate mitosis, and thus telomere length becomes a hallmark of cellular aging. The 500 kb region of each autosomal arm terminal is the so-called subtelomeric region. Both telomere and subtelomere have high-density DNA repeats. Telomeres do not contain genes or CpG sequences, while subtelomeres contain small amounts of genes and high-density CpG sequences, and DNA methylation often occurs in subtelomeres. Previous studies have shown that aberrant methylation of subtelomeric DNA exists in many diseases, and it has a certain effect on the regulation of telomere length. In this review, we focus on the correlation between subtelomeric DNA methylation and aging-related diseases. We also summarize the relationship between subtelomeric methylation and telomere length in different diseases.
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- 2018
14. Elevated methylation of OPRM1 and OPRL1 genes in Alzheimer's disease
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Huihui Ji, Chunshuang Xu, Guili Liu, Qinwen Wang, Wei Cui, Liping Li, Qin Zha, Dongjun Dai, Zhongming Chen, Haochang Hu, Lei Xu, Shiwei Duan, Dongsheng Zhou, Lan Chang, and Chen Weihua
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Male ,0301 basic medicine ,Cancer Research ,medicine.drug_class ,Receptors, Opioid, mu ,Biology ,Biochemistry ,Nociceptin Receptor ,03 medical and health sciences ,0302 clinical medicine ,Alzheimer Disease ,Opioid receptor ,Gene expression ,Genetics ,medicine ,Humans ,Genetic Predisposition to Disease ,Promoter Regions, Genetic ,Receptor ,Molecular Biology ,Genetic Association Studies ,Regulation of gene expression ,Reporter gene ,promoter ,DNA methylation ,Base Sequence ,Articles ,Methylation ,Alzheimer's disease ,Molecular biology ,opioid receptor µ1 ,Nociceptin receptor ,030104 developmental biology ,Gene Expression Regulation ,ROC Curve ,Oncology ,Case-Control Studies ,Receptors, Opioid ,Molecular Medicine ,CpG Islands ,Female ,opioid related nociceptin receptor 1 ,Biomarkers ,030217 neurology & neurosurgery - Abstract
Previous studies have suggested that increased opioid receptor κ1 (OPRK1) and opioid receptor δ1 (OPRD1) methylation levels are involved in Alzheimer's disease (AD). In the present study, the methylation levels of two opioid receptor genes, opioid receptor µ1 (OPRM1) and opioid related nociceptin receptor 1 (OPRL1), were analyzed for their association with AD. Gene methylation levels were measured using bisulfite pyrosequencing in DNA samples derived from blood samples of 51 AD patients and 63 controls. The results indicated that there were significantly elevated promoter methylation levels of OPRM1 and OPRL1 in AD (OPRM1: P=0.007; OPRL1: P=2.987x10‑6). Dual‑luciferase reporter gene assays demonstrated that the promoter fragments of these two genes were able to promote gene expression (OPRM1: Fold‑change=2.616, P=0.003; OPRL1: Fold change=11.395, P=0.007). In addition, receiver operating characteristic analyses further indicated that a methylation panel of four opioid receptor genes (area under the curve=0.848, sensitivity=0.723, and specificity=0.879) performed well in the prediction of AD. These results suggested that opioid receptor genes may be used as potential methylation biomarkers for the diagnosis of AD.
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- 2018
15. SMYD3 promoter hypomethylation is associated with the risk of colorectal cancer
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Min Chen, Haochang Hu, Jun Zhao, Tianyi Huang, Ranran Pan, Cong Zhou, Yiyi Mao, Xiuru Ying, Jie Dai, Bin Li, Shiwei Duan, and Wei Zhang
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0301 basic medicine ,Male ,Cancer Research ,Colorectal cancer ,Subgroup analysis ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Histone-lysine methyltransferase ,Asian People ,Medicine ,Humans ,Stage (cooking) ,Promoter Regions, Genetic ,Neoplasm Staging ,business.industry ,General Medicine ,Methylation ,Histone-Lysine N-Methyltransferase ,DNA Methylation ,Middle Aged ,medicine.disease ,Tumor tissue ,digestive system diseases ,Gene Expression Regulation, Neoplastic ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Lymphatic Metastasis ,DNA methylation ,Cancer research ,Female ,business ,Colorectal Neoplasms - Abstract
Aim:SMYD3 encodes histone lysine methyltransferase. The goal of our study was to investigate the association between SMYD3 methylation and colorectal cancer (CRC). Materials & methods: SMYD3 methylation was measured by quantitative methylation-specific PCR method in 117 pairs of CRC tumor and para-tumor tissues. Results: Significantly lower SMYD3 methylation was observed in CRC tumor tissues than para-tumor tissues (p = 0.002). Further subgroup analysis by clinical features showed that significantly lower SMYD3 methylation were only observed in the CRC patients with tumors of moderately and well differentiation, positive lymph node metastasis, and stage III + IV. Conclusion: Our work reported for the first time that SMYD3 promoter hypomethylation was associated with CRC.
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- 2018
16. Diagnostic value of RASSF1A hypermethylation in colorectal cancer: a meta-analysis
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Jun Zhao, Bin Li, Yanfei Chen, Min Chen, Yiyi Mao, Tianyi Huang, Hang Yu, Cong Zhou, Jie Dai, Haochang Hu, and Shiwei Duan
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0301 basic medicine ,Oncology ,endocrine system ,medicine.medical_specialty ,Colorectal cancer ,Sensitivity and Specificity ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Biomarkers, Tumor ,Humans ,Domain family ,Receiver operating characteristic ,business.industry ,Tumor Suppressor Proteins ,Cell Biology ,Odds ratio ,DNA Methylation ,medicine.disease ,Confidence interval ,030104 developmental biology ,030220 oncology & carcinogenesis ,Meta-analysis ,Clinical diagnosis ,DNA methylation ,business ,Colorectal Neoplasms - Abstract
Ras association domain family 1 isoform A (RASSF1A), a member of Ras association domain family, plays an important role in tumorigenesis. The goal of our meta-analysis was to assess the diagnostic value of RASSF1A hypermethylation in colorectal cancer (CRC).PubMed, Embase, CNKI and Wanfang databases were used to conduct literature selection. The association between RASSF1A methylation and CRC risk was evaluated by odds ratios (ORs) and 95% confidence intervals (CIs). Summary receiver operating characteristics (SROC) test was used to estimate the diagnostic value of RASSF1A methylation for CRC.A total of 22 articles among 1736 CRC and 811 non-tumor samples were included in the current meta-analysis. Our results showed that RASSF1A hypermethylation was found more frequently in CRC than non-tumor samples (OR = 6.02, 95% CI = 4.57-7.93, P 0.001). Our SROC test showed that RASSF1A hypermethylation had an area under the curve (AUC) of 0.71 with a pooled sensitivity of 0.33 (95% CI = 0.31-0.36), a pooled specificity of 0.86 (95% CI = 0.84-0.89), a positive-likelihood ratio of 3.18 (95% CI = 1.99-5.09), a negative-likelihood ratio of 0.71 (95% CI = 0.63-0.80), and a diagnostic odds ratio of 5.53 (95% CI = 3.40-9.00). Data mining study indicated that a trend of increased RASSF1A expression was found in the CRC cell line C2C12 after 5-AZA treatment.Our study established that RASSF1A hypermethylation might have a potential value in the clinical diagnosis of CRC.
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- 2018
17. Hypermethylation of MDFI promoter with NSCLC is specific for females, non‑smokers and people younger than 65
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Hongying Ma, Bin Li, Xiuru Ying, Shiwei Duan, Xiaoying Chen, Cong Zhou, Guofang Zhao, Jie Zhong, and Haochang Hu
- Subjects
0301 basic medicine ,Cancer Research ,Oncogene ,Cancer ,Methylation ,Biology ,medicine.disease ,Molecular medicine ,respiratory tract diseases ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,DNA methylation ,Carcinoma ,medicine ,Cancer research ,Lung cancer ,MyoD family inhibitor - Abstract
Non-small cell lung carcinoma (NSCLC) is a major subtype of lung cancer. Aberrant DNA methylation has been frequently observed in NSCLC. The aim of the present study was to investigate the role of MyoD family inhibitor (MDFI) methylation in NSCLC. Formalin-fixed paraffin-embedded tumor tissues and adjacent non-cancerous tissues were collected from a total of 111 patients with NSCLC. A methylation assay was performed using the quantitative methylation-specific polymerase chain reaction method. The percentage of methylated reference was used to represent the methylation level of the MDFI promoter. Data mining of a dataset from The Cancer Genome Atlas (TCGA) demonstrated that MDFI promoter methylation levels were significantly increased in 830 tumor tissues compared with 75 non-tumor tissues (P=0.012). However, the results on tissues obtained in the present study indicated that the MDFI promoter methylation levels in tumor tissues were not significantly different compared with those in the adjacent non-tumor tissues (P=0.159). Subsequent breakdown analysis identified that higher MDFI promoter methylation levels were significantly associated with NSCLC in females (P=0.031), but not in males (P=0.832). Age-based subgroup analysis demonstrated that higher MDFI promoter methylation levels were significantly associated with NSCLC in younger patients (≤65 years; P=0.003), but not in older patients (P=0.327). In addition, the association of MDFI methylation with NSCLC was significant in non-smokers (P=0.014), but not in smokers (P=0.832). Similar results also have been determined from subgroup analysis of the TCGA datasets. The Gene Expression Omnibus database indicated MDFI expression restoration in partial lung cancer cell lines (H1299 and Hotz) following demethylation treatment. However, it was identified that MDFI promoter hypermethylation was not significantly associated with prognosis of NSCLC (P>0.05). In conclusion, the present study indicated that the association of higher methylation of the MDFI promoter with NSCLC may be specific to females, non-smokers and people aged ≤65.
- Published
- 2018
18. Dopamine receptor D4 promoter hypermethylation increases the risk of drug addiction
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Huifen Liu, Qinwen Wang, Wenwen Shen, Guili Liu, Lei Xu, Haochang Hu, Shiwei Duan, Xiaohu Xie, Longhui Li, Wenhua Zhou, Xuting Xu, and Huihui Ji
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0301 basic medicine ,Drug ,Cancer Research ,media_common.quotation_subject ,Pharmacology ,Heroin ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Immunology and Microbiology (miscellaneous) ,mental disorders ,medicine ,Dopamine receptor D4 ,media_common ,biology ,business.industry ,Addiction ,Dopaminergic ,Articles ,General Medicine ,Meth ,Methylation ,030104 developmental biology ,chemistry ,DNA methylation ,biology.protein ,business ,030217 neurology & neurosurgery ,medicine.drug - Abstract
Heroin and methylamphetamine (METH) are two addictive drugs that cause serious problems for society. Dopamine receptor D4 (DRD4), a key receptor in the dopaminergic system, may facilitate the development of drug addiction. The aim of the present study was to investigate the association between the promoter methylation level of DRD4 gene and drug addiction. Bisulfite pyrosequencing technology was used to measure the methylation levels of DRD4 promoter in 60 drug addicts and 52 matched controls. Significantly higher levels of DRD4 CpG1 and CpG4 methylation were detected in METH and heroin drug addicts compared with controls (P
- Published
- 2017
19. Elevated UMOD methylation level in peripheral blood is associated with gout risk
- Author
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Yuting Jiang, Yiyi Mao, Jie Dai, Haochang Hu, Hang Yu, Xiaoying Chen, Yong Yang, and Shiwei Duan
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Adult ,Male ,musculoskeletal diseases ,0301 basic medicine ,medicine.medical_specialty ,Tamm–Horsfall protein ,Gout ,lcsh:Medicine ,Real-Time Polymerase Chain Reaction ,Risk Assessment ,Sensitivity and Specificity ,Article ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Internal medicine ,Uromodulin ,Gene expression ,medicine ,Humans ,lcsh:Science ,Aged ,030203 arthritis & rheumatology ,Genetics ,Multidisciplinary ,biology ,lcsh:R ,Methylation ,DNA Methylation ,Middle Aged ,medicine.disease ,Uric Acid ,030104 developmental biology ,Real-time polymerase chain reaction ,Endocrinology ,chemistry ,CpG site ,DNA methylation ,biology.protein ,Uric acid ,lcsh:Q ,Blood Chemical Analysis - Abstract
Uromodulin (UMOD) encodes an uromodulin glycoprotein, and its mutation results in uromodulin glycoprotein dysfunction and the occurrence of gout. The aim of our study was to assess whether UMOD methylation could predict the risk of gout. A total of 89 sporadic gout cases and 103 age and gender-matched healthy controls were recruited in this study. UMOD methylation level was determined by quantitative methylation-specific PCR (qMSP) in peripheral blood, and the percentage of methylated reference (PMR) was described to represent the methylation level. Our results showed that UMOD methylation was significantly higher in gout cases than controls (median: 1.45 versus 0.75, P UMOD methylation in gout was 0.764 (P = 2.90E-10) with a sensitivity of 65.2% and a specificity of 88.3%. UMOD methylation level was shown to be significantly correlated with the serum level of uric acid (UA) (r = −0.208, P = 0.035). Besides, the luciferase reporter assay showed that UMOD CpG island region was able to upregulate gene expression (fold change = 2, P = 0.004). In conclusion, UMOD methylation assessment might be used to predict the occurrence of gout.
- Published
- 2017
20. FOXF2 promoter methylation is associated with prognosis in esophageal squamous cell carcinoma
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Bin Li, Cong Ye, Yong Yang, Xiuru Ying, Yingmin Chen, Jing Liu, Shiwei Duan, Dongping Wu, Xiaoying Chen, Guili Liu, and Haochang Hu
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0301 basic medicine ,Oncology ,medicine.medical_specialty ,Poor prognosis ,Candidate gene ,Tissue Fixation ,Esophageal Neoplasms ,Esophageal squamous cell carcinoma ,FORKHEAD BOX F2 ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Internal medicine ,Formaldehyde ,Promoter methylation ,medicine ,Human Umbilical Vein Endothelial Cells ,Humans ,Promoter Regions, Genetic ,Paraffin Embedding ,Base Sequence ,business.industry ,Forkhead Transcription Factors ,General Medicine ,Hep G2 Cells ,DNA Methylation ,Survival Analysis ,030104 developmental biology ,Treatment Outcome ,030220 oncology & carcinogenesis ,DNA methylation ,Cancer research ,Carcinoma, Squamous Cell ,Digestive tract ,Esophageal Squamous Cell Carcinoma ,business ,K562 Cells ,HeLa Cells - Abstract
Esophageal squamous cell carcinoma is a commonly malignant tumor of digestive tract with poor prognosis. Previous studies suggested that forkhead box F2 ( FOXF2) could be a candidate gene for assessing and predicting the prognosis of human cancers. However, the relationship between FOXF2 promoter methylation and the prognosis of esophageal squamous cell carcinoma remained unclear. Formalin-fixed, paraffin-embedded esophageal squamous cell carcinoma tissues of 135 esophageal squamous cell carcinoma patients were detected for FOXF2 promoter methylation status by methylation-specific polymerase chain reaction approach. DNA methylation results were evaluated with regard to clinicopathological features and overall survival. Our study confirmed that FOXF2 promoter hypermethylation could independently predict a poorer overall survival of esophageal squamous cell carcinoma patients ( p = 0.002), which was consistent with the data mining results of the data from 82 esophageal squamous cell carcinoma patients in The Cancer Genome Atlas datasets ( p = 0.036). In addition, no correlation was found between FOXF2 promoter methylation and other clinic pathological parameters (age, gender, differentiation, lymph node metastasis, stage, cutting edge, vascular invasion, smoking behavior, and drinking history). In conclusion, FOXF2 methylation might be a useful prognostic biomarker for esophageal squamous cell carcinoma patients.
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- 2017
21. Association of OPRK1 and OPRM1 methylation with mild cognitive impairment in Xinjiang Han and Uygur populations
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Huihui Ji, Yingmin Chen, Haochang Hu, Wei Cui, Cong Ye, Xiaohui Zhou, Lan Chang, Jing Liu, Guili Liu, Qinwen Wang, Shiwei Duan, and Chunshuang Xu
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0301 basic medicine ,Male ,China ,Receptors, Opioid, mu ,Blood lipids ,Biology ,03 medical and health sciences ,0302 clinical medicine ,Asian People ,Alzheimer Disease ,Gene expression ,medicine ,Ethnicity ,Humans ,Cognitive Dysfunction ,Cognitive impairment ,Promoter Regions, Genetic ,Genetics ,Reporter gene ,General Neuroscience ,Receptors, Opioid, kappa ,Methylation ,DNA Methylation ,medicine.disease ,030104 developmental biology ,DNA methylation ,Pyrosequencing ,Female ,Alzheimer's disease ,030217 neurology & neurosurgery - Abstract
As the pre-dementia phase of Alzheimer disease, mild cognitive impairment (MCI) involves the onset and development of cognitive impairments. Opioid receptors play pivotal roles in the regulation of learning and cognition. Our study focused on the association of OPRK1 and OPRM1 methylation with MCI in Xinjiang Uygur and Han populations. DNA methylation was measured using bisulphite pyrosequencing method. Our results indicated OPRK1 was significantly hypermethylated in Xinjiang Han MCI females. Meanwhile, OPRM1 CpG1 hypermethylation and CpG2-4 hypomethylation were associated with MCI risk in Xinjiang Uygur and Han, respectively. Our study showed that OPRK1 and OPRM1 were significantly hypermethylated in Xinjiang (Northwest China) than Zhejiang (Southeast China) Han Chinese healthy controls. Our results showed that OPRK1 promoter methylation was related to gender, ethnicity, aging, and environmental changes, while OPRM1 promoter methylation was related to blood lipids and living regions. Dual-luciferase reporter gene assays revealed that promoter fragments of OPRK1 and OPRM1 were able to upregulate gene expression. In summary, our findings provided novel aspects of OPRK1 and OPRM1 methylation in Xinjiang Uygur and Han populations.
- Published
- 2016
22. Aberrant methylation of mutL homolog 1 is associated with increased risk of non-small cell lung cancer
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Jie Dai, Hang Yu, Xiuru Ying, Haochang Hu, Yihan Zhang, Yiyi Mao, Tiangong Wang, Cong Zhou, Yong Yang, Boyi Wu, Xiaodong Li, Bin Li, Xiaoying Chen, Shiwei Duan, and Jie Zhong
- Subjects
Adult ,Male ,0301 basic medicine ,Microbiology (medical) ,Lung Neoplasms ,Statistics as Topic ,Clinical Biochemistry ,Biology ,MLH1 ,law.invention ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,law ,Carcinoma, Non-Small-Cell Lung ,Molecular marker ,Databases, Genetic ,medicine ,Humans ,Immunology and Allergy ,Lung cancer ,neoplasms ,Research Articles ,Polymerase chain reaction ,Aged ,Retrospective Studies ,Aged, 80 and over ,Biochemistry (medical) ,Age Factors ,Public Health, Environmental and Occupational Health ,Promoter ,Hematology ,Methylation ,DNA Methylation ,Middle Aged ,medicine.disease ,Medical Laboratory Technology ,030104 developmental biology ,chemistry ,030220 oncology & carcinogenesis ,DNA methylation ,Cancer research ,Female ,Non small cell ,MutL Protein Homolog 1 - Abstract
Background Non-small cell lung cancer (NSCLC) is a common malignant tumor. DNA hypermethylation in the promoter region has been served as a potential molecular marker for several tumors. The goal of the current study was to assess the diagnostic ability of mutL homolog 1 (MLH1) promoter methylation in NSCLC. Methods A total of 111 NSCLC patients' paired tissue samples were obtained to explore the association between MLH1 promoter methylation and NSCLC by methylation-specific polymerase chain reaction (MSP) method. Public databases including The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) were used to verify our findings. Results Our results showed a significantly higher MLH1 methylation frequency in tumor tissue samples than their paired adjacent tissues (P = .008). ROC curve indicated that MLH1MSP assay was a sensitive but not a specific method in the diagnosis for NSCLC (sensitivity = 0.964, specificity = 0.135, AUC = 0.550). And the association between the methylation level and clinical characteristics has no statistical significance. TCGA cohort evinced a higher methylation probability in tumor group compared with nontumor group (the mean β value: -0.449 [-0.467, -0.437] vs -0.466 [-0.472, -0.437], P = .011), which was consistent with our results. Meanwhile, an inverse correlation between MLH1 methylation and MLH1 expression was detected in TCGA and GEO databases. Conclusions The MSP method for MLH1 methylation was a sensitive but not a specific diagnostic method for NSCLC.
- Published
- 2017
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