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Zhou H, Hao X, Zhang P, He S. Noncoding RNA mutations in cancer. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1812. [PMID: 37544928 DOI: 10.1002/wrna.1812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 08/08/2023]
Abstract
Cancer is driven by both germline and somatic genetic changes. Efforts have been devoted to characterizing essential genetic variations in cancer initiation and development. Most attention has been given to mutations in protein-coding genes and associated regulatory elements such as promoters and enhancers. The development of sequencing technologies and in silico and experimental methods has allowed further exploration of cancer predisposition variants and important somatic mutations in noncoding RNAs, mainly for long noncoding RNAs and microRNAs. Association studies including GWAS have revealed hereditary variations including SNPs and indels in lncRNA or miRNA genes and regulatory regions. These mutations altered RNA secondary structures, expression levels, and target recognition and then conferred cancer predisposition to carriers. Whole-exome/genome sequencing comparing cancer and normal tissues has revealed important somatic mutations in noncoding RNA genes. Mutation hotspots and somatic copy number alterations have been identified in various tumor-associated noncoding RNAs. Increasing focus and effort have been devoted to studying the noncoding region of the genome. The complex genetic network of cancer initiation is being unveiled. This article is categorized under: RNA in Disease and Development > RNA in Disease.
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Affiliation(s)
- Honghong Zhou
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xinpei Hao
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Peng Zhang
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shunmin He
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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2
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Zhang W, Liu Y, Yan Z, Yang H, Sun W, Yao Y, Chen Y, Jiang R. IL-6 promotes PD-L1 expression in monocytes and macrophages by decreasing protein tyrosine phosphatase receptor type O expression in human hepatocellular carcinoma. J Immunother Cancer 2021; 8:jitc-2019-000285. [PMID: 32581055 PMCID: PMC7319788 DOI: 10.1136/jitc-2019-000285] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2020] [Indexed: 12/11/2022] Open
Abstract
Background We have previously discovered a relationship between the low expression of protein tyrosine phosphatase, receptor type O (PTPRO) in tumor-infiltrating T cells and immunosuppression. The aim of the present study was to investigate the relationship between decreased PTPRO and increased programmed death ligand 1 (PD-L1) in both the peripheral monocytes and tumor-infiltrating macrophages of human hepatocellular carcinoma (HCC). Methods The expression and correlation of all the indices were explored in monocytes and tumor-infiltrating macrophages within both human and mice HCC. The mechanic regulations were studied by using both in vitro and in vivo studies. Results We found a significant decrease in PTPRO in HCC peripheral monocytes that was associated with increased PD-L1 expression in peripheral monocytes and tumor-associated macrophages (TAMs) in HCC. Monocyte PD-L1 and PTPRO therefore could serve as valuable prognostic indicators for post-surgery patients with HCC and were associated with increased T-cell exhaustion (Tim3+T cells). A depletion of PTPRO promoted PD-L1 secretion in both monocytes and macrophages through the JAK2/STAT1 and JAK2/STAT3/c-MYC pathways. Increased IL-6 expression was associated with activation of JAK2/STAT3/c-MYC and with decreased PTPRO expression through the STAT3/c-MYC/miR-25–3 p axis. Monocytes and TAMs showed significantly increased miR-25–3 p expression, which could target the 3′ untranslated region of PTPRO. The miR-25–3 p expression positively correlated with serum IL-6 levels, but inversely correlated with PTPRO in HCC monocytes. IL-6/STAT3/c-MYC activation enhanced in vitro miR-25–3 p transcription and decreased PTPRO, while further promoting PD-L1 secretion. Adoptive cell transfer of c-MYC/miR-25–3 p–modified monocytes promoted tumor growth by downregulating PTPRO and causing a PD-L1–induced immunosuppression in an orthotopic tumor transplantation model. Conclusions Increased serum IL-6 downregulated PTPRO expression in HCC monocytes and macrophages by activating STAT3/c-MYC/miR-25–3 p and by further enhancing PD-L1 expression through JAK2/STAT1 and JAK2/STAT3/c-MYC signaling.
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Affiliation(s)
- Wenjie Zhang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yang Liu
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhongyi Yan
- Department of Immunology, Nanjing Medical University, Nanjing, China
| | - Hui Yang
- Department of Hematology, The first affiliated Hospital to Nanjing Medical University, Nanjing, China
| | - Wei Sun
- Medical School of Nanjing University, Nanjing, China
| | - Yongliang Yao
- Department of Clinical Laboratory, Kunshan First People's Hospital, Affiliated to Jiangsu University, Kunshan, China
| | - Yun Chen
- Department of Immunology, Nanjing Medical University, Nanjing, China .,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Research Center for Clinical Oncology, Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of 15 Nanjing Medical University, Nanjing, China
| | - Runqiu Jiang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China .,Medical School of Nanjing University, Nanjing, China.,Jiangsu Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
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Ma R, Zhao M, Zou X, Zhou J, Bai Z. MicroRNA polymorphism: A target for diagnosis and prognosis of hepatocellular carcinoma? Oncol Lett 2021; 21:324. [PMID: 33692856 DOI: 10.3892/ol.2021.12586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/27/2021] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a life-threatening cancer of the digestive system, with complex pathogenesis affected by a broad spectrum of genetic and epigenetic factors. Among several factors, microRNAs (miRNAs), which are considered regulators of the post-transcriptional gene expression, play important roles in determining the malignant phenotype of HCC. In recent years, the advances in molecular genetics have resulted in the characterization of complex genetic factors and in the identification of epigenetic mechanisms of diseases. Accumulating data have suggested that miRNA polymorphisms are involved in tumorigenesis and prognosis, suggesting that the miRNAs may serve as a target for HCC with regard to pathogenesis and prognosis. In the present review, a comprehensive and detailed literature search was conducted and the role of miRNA polymorphisms in the pathogenesis and prognosis of HCC is summarized. The data proposed the use of miRNAs as targets for the diagnosis and treatment of HCC.
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Affiliation(s)
- Ruixia Ma
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,The General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Maomao Zhao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,The General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xin Zou
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,The General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jianye Zhou
- Key Laboratory of Stomatology of State Ethnic Affairs Commission, Northwest Minzu University, Lanzhou, Gansu 730000, P.R. China
| | - Zhongtian Bai
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,The General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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4
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Du Y, Kong C. STAT3 regulates miR93-mediated apoptosis through inhibiting DAPK1 in renal cell carcinoma. Cancer Gene Ther 2020; 28:502-513. [PMID: 33230258 DOI: 10.1038/s41417-020-00235-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 11/10/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is an essential member of the STAT family. STAT3 regulates diverse genes that mediate inflammatory reactions, cell survival, proliferation, and angiogenesis, and it is aberrantly upregulated and activated in various types of malignancies. Furthermore, STAT3 signalling is involved in multiple feedback loops and pathways. In this study, we demonstrate that miR-93-3p plays an oncogenic role in renal cell carcinoma (RCC) by enhancing RCC cell proliferation and suppressing apoptosis. In addition, STAT3 can regulate the transcription of miR-93 by directly binding its promoter region. miR-93 can inhibit death-associated protein kinase 1 (DAPK1) at the protein level. Moreover, STAT3 can block DAPK1 expression at the RNA level. Importantly, we verified that DAPK1 overexpression in turn suppresses the entry of activated STAT3 into the cell nucleus. Thus, this study reveals a potential continuously activated signalling transduction pathway, STAT3-miR93-DAPK1, and may provide a novel clinical therapeutic approach for RCC.
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Affiliation(s)
- Yang Du
- Department of Urology, First Hospital of China Medical University, 110001, Shenyang, China
| | - Chuize Kong
- Department of Urology, First Hospital of China Medical University, 110001, Shenyang, China.
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Qiu M, Liu Y, Lin Q, Zhou Z, Jiang Y, Huo R, Liang X, Yu X, Cao J, Zhou X, Yu H. A miR-182 variant and risk of hepatocellular carcinoma in a southern Chinese population. Hum Genomics 2020; 14:38. [PMID: 33059751 PMCID: PMC7559205 DOI: 10.1186/s40246-020-00289-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 10/06/2020] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs) play important roles in the regulation of gene expression at the posttranscriptional level and are involved in human carcinogenesis. The aim of the current study was to investigate the associations between miR-182 single nucleotide polymorphisms and HCC risk in a southern Chinese population. In this case-control study of 863 HCC patients and 908 cancer-free controls, we performed genotyping of miR-182 rs4541843 and assessed its association with HCC risk. We found that individuals carrying the AG/AA genotypes of miR-182 rs4541843 were significantly associated with an increased risk of HCC compared with those carrying the GG genotype (adjusted odds ratio (OR) = 1.71, 95% confidence interval (CI) = 1.07–2.76, P = 0.026). In the stratified analysis, this increased risk was more pronounced in the subgroups of older individuals (adjusted OR = 1.98, 95% CI = 1.04–3.76, P = 0.037), males (adjusted OR = 1.81, 95% CI = 1.09–2.99, P = 0.021), and never drinkers (adjusted OR = 1.84, 95% CI = 1.03–3.30, P = 0.041). Our results suggested that miR-182 polymorphism rs4541843 may contribute to the susceptibility to HCC. Our findings require validation in further studies with larger sample sizes.
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Affiliation(s)
- Moqin Qiu
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China.,School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Yingchun Liu
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China.,Guangxi Cancer Molecular Medical Engineering Research Center, Nanning, 530021, China
| | - Qiuling Lin
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China.,School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Zihan Zhou
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China.,School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Yanji Jiang
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China.,School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Rongrui Huo
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China
| | - Xiumei Liang
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China
| | - Xiangyuan Yu
- Affiliated Hospital of Guilin Medical University, Guilin, 541004, China.,School of Public Health, Guilin Medical University, Guilin, 541004, China
| | - Ji Cao
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China
| | - Xianguo Zhou
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China. .,Guangxi Cancer Molecular Medical Engineering Research Center, Nanning, 530021, China.
| | - Hongping Yu
- Guangxi Medical University Cancer Hospital, Nanning, 530021, China. .,School of Public Health, Guangxi Medical University, Nanning, 530021, China. .,Guangxi Cancer Molecular Medical Engineering Research Center, Nanning, 530021, China.
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Wang H, Wang B, Wang T, Fan R. A genetic variant in the promoter region of miR-877 is associated with an increased risk of hepatocellular carcinoma. Clin Res Hepatol Gastroenterol 2020; 44:692-698. [PMID: 32113822 DOI: 10.1016/j.clinre.2020.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/17/2020] [Accepted: 01/29/2020] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Genome wide association study has identified chromosome 6p21.33 as a risk locus of hepatocellular carcinoma (HCC). MiR-877 is located on this region, functioning as a tumor suppressor. The aim of this study was to investigate the association between rs1264440 in the promoter of miR-877 and HCC risk. MATERIALS AND METHODS A total of 352 HCC patients and 359 age, gender, ethnicity and living area matched controls were enrolled in this study. The rs1264440 was genotyped using the TaqMan allelic discrimination assay. MiR-877 expression in HCC tissues was examined using quantitative PCR. RESULTS After Adjustment for age, sex, smoking status, drinking status and HBsAg status, this study showed a significant association between the rs1264440 and HCC risk. Subjects with the rs1264440 TT genotype and T allele showed a 2.20- and 1.44-fold increased risk to develop HCC, respectively (TT vs. CC: 95% CI, 1.18-4.11, P=0.01;T vs. C: 95% CI, 1.07-1.94, P=0.02). The increased risk was also observed in smokers and nondrinkers subgroup. The rs1264440 TT carriers had lower levels of miR-877. CONCLUSION The rs1264440 in the promoter region of miR-877 may regulate miR-877 expression and serve as an independent biomarker for the risk of HCC.
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Affiliation(s)
- Hongtu Wang
- Department of Infections Disease, the First Affiliated Hospital of Kunming Medical University, 650032 Kunming, Yunnan, China
| | - Bo Wang
- Department of Neurosurgery, the First Affiliated Hospital of Kunming Medical University, 650032 Kunming, Yunnan, China
| | - Tao Wang
- Department of Hepatobiliary and Pancreatic Surgery, Second Affiliated Hospital of Kunming Medical University, 650101 Kunming, Yunnan, China
| | - Ruixuan Fan
- Department of Infections Disease, the First Affiliated Hospital of Kunming Medical University, 650032 Kunming, Yunnan, China.
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7
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Yan Z, Zhou Z, Li C, Yang X, Yang L, Dai S, Zhao J, Ni H, Shi L, Yao Y. Polymorphisms in miRNA genes play roles in the initiation and development of cervical cancer. J Cancer 2019; 10:4747-4753. [PMID: 31598146 PMCID: PMC6775533 DOI: 10.7150/jca.33486] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 07/02/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNA deregulation is crucial for cancer development. Studies showed that polymorphisms in miRNA genes could affect miRNA expression, which might be associated with cancer development. In the current study, we investigated the association of seven single nucleotide polymorphisms (SNPs) in seven miRNA genes with the initiation and development of cervical cancer in a Chinese Han population. The SNPs of 358 cervical intraepithelial neoplasia (CIN) patients, 547 cervical cancer patients and 567 healthy individuals were genotyped using TaqMan assays. Moreover, we evaluated the association of the seven SNPs with the different stages of cervical cancer. Our results showed that rs4636297 in miR-126 was associated with susceptibility to CIN and cervical cancer (P=0.019 and 0.019, respectively) and that the T allele was associated with a higher risk of CIN (OR=1.334, 95% CI: 1.049-1.698) and cervical cancer (OR=1.296, 95% CI: 1.044-1.609). Similarly, rs11614913 in miR-125a was associated with CIN and cervical cancer (P=0.025 and 0.015, respectively), and the T allele might be the protective factor for CIN (OR=0.807, 95% CI: 0.669-0.974) and cervical cancer (OR=0.814, 95% CI: 0.689-0.961). Our results indicated that rs4636297 in miR-126 and rs11614913 in miR-196a2 play an important role only in the initiation of cervical cancer not in the development of CIN to cervical cancer.
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Affiliation(s)
- Zhiling Yan
- Department of Gynaecologic Oncology, The 3rd Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Ziyun Zhou
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Chuanyin Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Xielang Yang
- Department of Gynaecologic Oncology, The 3rd Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Longyu Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Shuying Dai
- School of Basic Medical Science, Kunming Medical University, Kunming 650500, China
| | - Jiehan Zhao
- Department of Pharmacology, Faculty of Science, University of Alberta, Edmonton, Canada
| | - Huijing Ni
- Department of Gynaecologic Oncology, The 3rd Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
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Zhang Z, Wang C, Liu Z, Zou G, Li J, Lu M. Host Genetic Determinants of Hepatitis B Virus Infection. Front Genet 2019; 10:696. [PMID: 31475028 PMCID: PMC6702792 DOI: 10.3389/fgene.2019.00696] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 07/03/2019] [Indexed: 12/14/2022] Open
Abstract
Chronic hepatitis B virus (HBV) infection is still a major health problem worldwide. Recently, a great number of genetic studies based on single nucleotide polymorphisms (SNPs) and genome-wide association studies have been performed to search for host determinants of the development of chronic HBV infection, clinical outcomes, therapeutic efficacy, and responses to hepatitis B vaccines, with a focus on human leukocyte antigens (HLA), cytokine genes, and toll-like receptors. In addition to SNPs, gene insertions/deletions and copy number variants are associated with infection. However, conflicting results have been obtained. In the present review, we summarize the current state of research on host genetic factors and chronic HBV infection, its clinical type, therapies, and hepatitis B vaccine responses and classify published results according to their reliability. The potential roles of host genetic determinants of chronic HBV infection identified in these studies and their clinical significance are discussed. In particular, HLAs were relevant for HBV infection and pathogenesis. Finally, we highlight the need for additional studies with large sample sizes, well-matched study designs, appropriate statistical methods, and validation in multiple populations to improve the treatment of HBV infection.
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Affiliation(s)
- Zhenhua Zhang
- Department of Infectious Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
- College of Pharmacy, Anhui Medical University, Hefei, China
| | - Changtai Wang
- Department of Infectious Diseases, the Affiliated Anqing Hospital of Anhui Medical University, Anqing, China
| | - Zhongping Liu
- Department of Infectious Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guizhou Zou
- Department of Infectious Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Li
- College of Pharmacy, Anhui Medical University, Hefei, China
| | - Mengji Lu
- Institute of Virology, University Hospital of Duisburg-Essen, Essen, Germany
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A genetic variant rs13293512 in the promoter of let-7 is associated with an increased risk of breast cancer in Chinese women. Biosci Rep 2019; 39:BSR20182079. [PMID: 31028134 PMCID: PMC6533205 DOI: 10.1042/bsr20182079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 12/13/2022] Open
Abstract
Growing evidence has demonstrated that single-nucleotide polymorphisms (SNPs) in the promoter of miRNA may influence individuals’ susceptibility to human diseases. We examined two SNPs rs10877887 and rs13293512 in the promoters of let-7 family to determine if the two SNPs were related to the occurrence of breast cancer (BC). Genotyping of the two SNPs was performed by PCR and restriction fragment length polymorphism analysis or TaqMan assay in 301 BC patients and 310 age matched controls. We found a higher frequency of rs13293512 CC genotype and rs13293512 C allele amongst BC patients (CC vs TT: adjusted odds ratio (OR) = 1.78; 95% CI: 1.14–2.80; P=0.012; C vs T: adjusted OR = 1.33; 95% CI: 1.06–1.67; P=0.013). Stratification analysis showed that rs13293512 CC genotype was associated with an increased risk of BC in patients with negative estrogen receptor (adjusted OR = 2.39; 95% CI: 1.32–4.30; P=0.004), patients with negative progesterone receptor (adjusted OR = 1.92; 95% CI: 1.11–3.33; P=0.02), patients with T1-2 stage cancer (adjusted OR = 1.77; 95% CI: 1.07–2.93; P=0.03), and patients with N1-3 stage cancer (adjusted OR = 1.89; 95% CI: 1.13–3.17; P=0.015). These findings suggest that rs13293512 in the promoter of let-7a-1/let-7f-1/let-7d cluster may be a possible biomarker for the development of BC in Chinese women.
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Chen Z, Wu Y, Kong J, Li Y, Wang H, Zhao H, Wu Z. Insertion/deletion polymorphism in the 3' untranslated region of COL1A2 disrupts its interaction with microRNA-382 and leads to decreased susceptibility to osteoporotic fracture. J Cell Biochem 2019; 120:12402-12411. [PMID: 30825231 DOI: 10.1002/jcb.28506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/12/2018] [Accepted: 01/10/2019] [Indexed: 11/09/2022]
Abstract
A growing body of evidence has proved that the expression of COL1A2 is associated with a reduced risk of osteoporotic fracture. One single-nucleotide polymorphism (rs3917) located within the 3'-untranslated region of COL1A2 may "alter" binding site of miR-382 and thereby associated with the risk of osteoporotic fracture. Bioinformatic analysis, luciferase reporter assay, site-directed mutagenesis, Western blot and real-time PCR were performed in this study. In this study, we validated COL1A2 as a target of miR-382 in osteoblast. In addition, bone tissue samples were genotyped as wild-type rs3917, heterozygous rs3917, and homozygous rs3917. The expression of miR-382 was comparable between the genotype groups, whereas the expression of COL1A2 mRNA and protein was much higher in heterozygous rs3917 and homozygous rs3917 than the wild-type rs3917 group. Furthermore, we transfected the wild-type rs3917 and heterozygous rs3917 cells with miR-382 mimics or inhibitors and found that the transfection with miR-382 mimics significantly increased the level of the miR-382 in the cells of both genotypes, and the introduction of miR-382 inhibitors substantially suppressed the level of miR-382 in both cells. In wild-type rs3917 cells, transfection of miR-382 mimics and COL1A2 small interfering RNA (siRNA) similarly and substantially downregulated the expression of COL1A2, while in heterozygous rs3917 cells, only COL1A2 siRNA notably reduced the expression of COL1A2, whereas introduction of miR-382 mimics left expression of COL1A2 intact. The findings showed rs3917 polymorphism interfered with the interaction between COL1A2 mRNA and miR-382, and minor allele is associated with a reduced risk of osteoporotic fracture.
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Affiliation(s)
- Ziqi Chen
- Department of Spinal Surgery, Orthopedic Hospital of Xingtai, Xingtai, Hebei, China
| | - Yanping Wu
- Department of Pediatrics, First Hospital of Xingtai, Xingtai, Hebei, China
| | - Jianjun Kong
- Department of Spinal Surgery, Orthopedic Hospital of Xingtai, Xingtai, Hebei, China
| | - Yan Li
- Department of Spinal Surgery, Orthopedic Hospital of Xingtai, Xingtai, Hebei, China
| | - Hongbin Wang
- Department of Orthopedic and Trauma Surgery, Orthopedic Hospital of Xingtai, Xingtai, Hebei, China
| | - Hongbin Zhao
- Department of Orthopedics, First Hospital of Xingtai, Xingtai, Hebei, China
| | - Zhanyong Wu
- Department of Spinal Surgery, Orthopedic Hospital of Xingtai, Xingtai, Hebei, China
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11
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Lou W, Liu J, Ding B, Chen D, Xu L, Ding J, Jiang D, Zhou L, Zheng S, Fan W. Identification of potential miRNA-mRNA regulatory network contributing to pathogenesis of HBV-related HCC. J Transl Med 2019; 17:7. [PMID: 30602391 PMCID: PMC6317219 DOI: 10.1186/s12967-018-1761-7] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 12/21/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) is one of the major risk factors of hepatocellular carcinoma (HCC). Increasing evidence indicates that microRNA (miRNA)-mRNA axis is involved in HCC. However, a comprehensive miRNA-mRNA regulatory network in HBV-related HCC is still absent. This study aims to identify potential miRNA-mRNA regulatory pathways contributing to pathogenesis of HBV-related HCC. METHODS Microarray GSE69580 was downloaded from Gene Expression Omnibus (GEO) database. GEO2R and 'R-limma' were used to conduct differential expression analysis. The common miRNAs appeared in the two analytic sets were screened as potential differentially expressed miRNAs (DE-miRNAs). The prognostic roles of screened DE-miRNAs in HCC were further evaluated using Kaplan-Meier plotter database. Target genes of DE-miRNAs were predicted by miRNet. Then, protein-protein interaction (PPI) networks were established for these targets via the STRING database, after which hub genes in the networks were identified by Cytoscape. Functional annotation and pathway enrichment analyses for the target genes were performed through DAVID database. Three enriched pathways related to HBV-related HCC were selected for further analysis and potential target genes commonly appeared in all three pathways were screened. Cytoscape was employed to construct miRNA-hub gene network. The expression and correlation of potential miRNAs and targets were further detected in clinical HBV-related HCC samples by qRT-PCR. RESULTS 7 upregulated and 9 downregulated DE-miRNAs were accessed. 5 of 7 upregulated DE-miRNAs and 5 of 7 downregulated DE-miRNAs indicated significant prognostic roles in HCC. 2312 and 1175 target genes were predicted for the upregulated and downregulated DE-miRNAs, respectively. TP53 was identified as the hub gene in the PPI networks. Pathway enrichment analysis suggested that these predicted targets were linked to hepatitis B, pathways in cancer, microRNAs in cancer and viral carcinogenesis. Further analysis of these pathways screened 20 and 16 target genes for upregulated and downregulated DE-miRNAs, respectively. By detecting the expression of 36 target genes, six candidate target genes were identified. Finally, a potential miRNA-mRNA regulatory network was established based on the results of qRT-PCR and expression correlation analysis. CONCLUSIONS In the study, potential miRNA-mRNA regulatory pathways were identified, exploring the underlying pathogenesis and effective therapy strategy of HBV-related HCC.
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Affiliation(s)
- Weiyang Lou
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Jingxing Liu
- Department of Intensive Care Unit, Changxing People's Hospital of Zhejiang, Huzhou, 313100, Zhejiang Province, China
| | - Bisha Ding
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Danni Chen
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Liang Xu
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Jun Ding
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Donghai Jiang
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Lin Zhou
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China
| | - Shusen Zheng
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China. .,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China. .,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China.
| | - Weimin Fan
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China. .,Key Laboratory of Organ Transplantation, Hangzhou, 310003, Zhejiang Province, China. .,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, 310000, China. .,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA.
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12
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Comprehensive assessment for miRNA polymorphisms in hepatocellular cancer risk: a systematic review and meta-analysis. Biosci Rep 2018; 38:BSR20180712. [PMID: 29976775 PMCID: PMC6153371 DOI: 10.1042/bsr20180712] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/23/2018] [Accepted: 07/04/2018] [Indexed: 02/07/2023] Open
Abstract
MiRNA polymorphisms had potential to be biomarkers for hepatocellular cancer (HCC) susceptibility. Recently, miRNA single nucleotide polymorphisms (SNPs) were reported to be associated with HCC risk, but the results were inconsistent. We performed a systematic review with a meta-analysis for the association of miRNA SNPs with HCC risk. Thirty-seven studies were included with a total of 11821 HCC patients and 15359 controls in this meta-analysis. We found hsa-mir-146a rs2910164 was associated with a decreased HCC risk in the recessive model (P=0.017, OR = 0.90, 95% confidence interval (CI) = 0.83–0.98). While hsa-mir-34b/c rs4938723 was related with an increased HCC risk in the co-dominant model (P=0.016, odds ratio (OR) = 1.19, 95%CI = 1.03–1.37). When analyzing the Hepatitis B virus (HBV)-related HCC risk, hsa-mir-196a-2 rs11614913 was associated with a decreased HBV-related HCC risk in the co-dominant and allelic models. And hsa-mir-149 rs2292832 was found to be associated with a decreased HBV-related HCC risk in the dominant and recessive models. In conclusion, hsa-mir-146a rs2910164 and hsa-mir-34b/c rs4938723 could be biomarkers for the HCC risk while hsa-mir-196a-2 rs11614913 and hsa-mir-149 rs2292832 had potential to be biomarkers for HBV-related HCC risk.
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13
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Ellwanger JH, Zambra FMB, Guimarães RL, Chies JAB. MicroRNA-Related Polymorphisms in Infectious Diseases-Tiny Changes With a Huge Impact on Viral Infections and Potential Clinical Applications. Front Immunol 2018; 9:1316. [PMID: 29963045 PMCID: PMC6010531 DOI: 10.3389/fimmu.2018.01316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/28/2018] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are single-stranded sequences of non-coding RNA with approximately 22 nucleotides that act posttranscriptionally on gene expression. miRNAs are important gene regulators in physiological contexts, but they also impact the pathogenesis of various diseases. The role of miRNAs in viral infections has been explored by different authors in both population-based as well as in functional studies. However, the effect of miRNA polymorphisms on the susceptibility to viral infections and on the clinical course of these diseases is still an emerging topic. Thus, this review will compile and organize the findings described in studies that evaluated the effects of genetic variations on miRNA genes and on their binding sites, in the context of human viral diseases. In addition to discussing the basic aspects of miRNAs biology, we will cover the studies that investigated miRNA polymorphisms in infections caused by hepatitis B virus, hepatitis C virus, human immunodeficiency virus, Epstein–Barr virus, and human papillomavirus. Finally, emerging topics concerning the importance of miRNA genetic variants will be presented, focusing on the context of viral infectious diseases.
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Affiliation(s)
- Joel Henrique Ellwanger
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Francis Maria Báo Zambra
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Rafael Lima Guimarães
- Departamento de Genética, Universidade Federal do Pernambuco (UFPE), Recife, Brazil.,Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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14
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Sun R, Chen P, Li L, Sun H, Nie X, Liang Y, Yuan F, Pu Y, Bai P, Zhang L, Gao L. A polymorphism rs4705341 in the flanking region of miR-143/145 predicts risk and prognosis of colorectal cancer. Oncotarget 2018; 7:62084-62090. [PMID: 27556691 PMCID: PMC5308712 DOI: 10.18632/oncotarget.11387] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/08/2016] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to investigate the effect of a polymorphism rs4705341 in the flanking region of miR-143/145 on the risk of colorectal cancer (CRC). The rs4705341 polymorphism was analyzed in 1002 cases and 1062 controls using a polymerase chain reaction-restriction fragment length polymorphism method. We found a significantly reduced CRC susceptibility with miR-143/145 rs4705341 in homozygote comparison (adjusted OR = 0.66, 95%CI, 0.50-0.88, P = 0.004), dominant genetic model (adjusted OR = 0.80, 95%CI, 0.67-0.96, P = 0.015), recessive genetic model (adjusted OR = 0.73, 95%CI, 0.56-0.94, P = 0.016), and allele comparison (adjusted OR = 0.83, 95%CI, 0.73-0.94, P = 0.004). Stratification analysis showed that the rs4705341 was related to differentiated status, clinical stage I-II, and patients without lymph node metastasis. Moreover, patients with rs4705341GG had a longer overall survival (adjusted HR = 5.57, 95%CI, 0.95-32.68). These findings indicate that the miR-143/145 rs4705341 may be used as a potential biomarker for the development and prognosis of CRC.
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Affiliation(s)
- Ruifen Sun
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Central Laboratory, Yunnan University of Chinese Traditional Medicine, Yunnan, Kunming 650500, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Peng Chen
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lijuan Li
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hong Sun
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xinwen Nie
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yundan Liang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Fang Yuan
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan Pu
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Peng Bai
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lin Zhang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Linbo Gao
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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15
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Genetic Variants in the Promoter Region of miR-10b and the Risk of Breast Cancer. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2352874. [PMID: 28691018 PMCID: PMC5485289 DOI: 10.1155/2017/2352874] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/14/2017] [Indexed: 01/05/2023]
Abstract
Variants in microRNA genes may affect their expression by interfering with the microRNA maturation process and may substantially contribute to the risk of breast cancer. Recent studies have identified miR-10b as an interesting candidate because of its close association with the metastatic behavior of breast cancer. However, the roles of miR-10b-related single nucleotide polymorphisms in breast cancer susceptibility remain unclear. This case-control study evaluated the associations between variants in the upstream transcription regulation region of miR-10b and the risk of breast cancer among Chinese women. Seven potentially functional SNPs were investigated using genotyping assays. The potential biological functions of the identified positive SNPs were further evaluated using in silico databases. We found that rs4078756, which was located at the promoter region of miR-10b, was significantly associated with breast cancer risk (rs4078756 AG/GG versus AA, adjusted odds ratio: 1.17, 95% confidence interval: 1.02-1.35). The other six single nucleotide polymorphisms exhibited negative associations. Based on the in silico prediction, rs4078756 potentially regulated miR-10b expression through promoter activation or repression. These findings indicate that a potentially functional SNP (rs4078756) in the promoter region of miR-10b may contribute to breast cancer susceptibility among Chinese women.
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16
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An X, Yang Z, An Z. MiR-149 Compromises the Reactions of Liver Cells to Fatty Acid via its Polymorphism and Increases Non-Alcoholic Fatty Liver Disease (NAFLD) Risk by Targeting Methylene Tetrahydrofolate Reductase (MTHFR). Med Sci Monit 2017; 23:2299-2307. [PMID: 28507283 PMCID: PMC5443364 DOI: 10.12659/msm.901377] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a worldwide health problem, and microRNA (miRNA) has been reported to be involved in NAFLD. The objective of our study was to explore the effect of polymorphism in miR-149 on the pathogenesis of NAFLD. MATERIAL AND METHODS Real-time PCR was performed to explore the effect of long-chain fatty acid (FFA) on the level of miR-149 and methylene tetrahydrofolate reductase (MTHFR). Then in-silicon analysis and luciferase assay were investigated to verify MTHFR was the target gene of miR-149. Finally, Western-blot analysis and real-time PCR were performed to confirm the control of MTHFR by miR-149. RESULTS In this study, we found that miR-149 was apparently upregulated in hepatocytes genotyped as TT treated with FFA; and MTHFR in hepatocytes genotyped as TT treated with FFA was evidently downregulated compared to control. Whereas, FFA had no obvious effect on MTHFR level in hepatocytes genotyped as CC. We searched an online miRNA database and found that miR-149 was a regulator of MTHFR expression, which was confirmed by luciferase assay. In hepatocytes genotyped as TT and treated with or without FFA, miR-149 mimic dose-dependently decreased the level of MTHFR, and miR-149 inhibitor dose-dependently increased the level of MTHFR. And in hepatocytes genotyped as CC treated with or without FFA exhibited a similar inhibition effect of miR-149 on expression of MTHFR. CONCLUSIONS The data suggested that the polymorphism in miR-149 played an important role in the development of NAFLD via altering the expression of miR-149 as well as its target, MTHFR.
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Affiliation(s)
- Xianchao An
- Department of Ultrasound, The Second Affiliated Hospital of Shanxi University of Chinese Medicine, Xianyang, Shaanxi, China (mainland)
| | - Zonglin Yang
- Department of Ultrasound, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China (mainland)
| | - Zhengzhuang An
- Department of Ultrasound, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China (mainland)
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17
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An rs13293512 polymorphism in the promoter of let-7 is associated with a reduced risk of ischemic stroke. J Thromb Thrombolysis 2017; 42:610-5. [PMID: 27530126 DOI: 10.1007/s11239-016-1400-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The expression of let-7 family members was differentiated in ischemic stroke (IS), functioning as an important regulating molecular in the pathophysiology of stroke. We hypothesized that genetic polymorphism in the promoters of let-7 family may be associated with the risk of IS. To test this hypothesis, we investigated the association of the rs10877887 and rs13293512 in the promoters of let-7 family with the susceptibility to IS. A hospital-based case-control study was performed. The rs10877887 genotype was determined by using a polymerase chain reaction-restriction fragment length polymorphism assay, and the rs13293512 genotype was determined by using a TaqMan assay. We found that the rs13293512CC genotype was associated with a reduced risk of IS (CC vs. TT: adjusted OR = 0.43, 95 % CI 0.26-0.71; dominant model: adjusted OR = 0.70, 95 % CI 0.49-0.98; recessive model: adjusted OR = 0.45, 95 % CI, 0.28-0.73). Stratification analysis showed that the rs10877887TT carriers had a higher level of total cholesterol compared to rs10877887TC/CC carriers (P = 0.03). Combined analysis showed that the rs10877887TC/CC and rs13293512TC/CC genotypes had a reduced risk of IS risk (adjusted OR = 0.58, 95 % CI 0.36-0.95). Our findings suggest that the rs13293512 polymorphism may be a protective factor for the development of IS.
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18
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Yuan F, Sun R, Li L, Jin B, Wang Y, Liang Y, Che G, Gao L, Zhang L. A functional variant rs353292 in the flanking region of miR-143/145 contributes to the risk of colorectal cancer. Sci Rep 2016; 6:30195. [PMID: 27444415 PMCID: PMC4957080 DOI: 10.1038/srep30195] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/29/2016] [Indexed: 02/06/2023] Open
Abstract
MicroRNA (miR)-143 and miR-145 have been identified as molecular regulators in cell proliferation, cell growth, clone formation, apoptosis, cell cycle, invasion, and migration. We previously found that rs353292 in the flanking region of miR-143/145 showed a high frequency in patients with colorectal cancer (CRC). To identify whether the rs353292 polymorphism is a risk factor for CRC, we conducted this study with larger samples. A total of 809 patients with CRC and 1005 gender matched controls were collected. The rs353292 polymorphism was genotyped by using TaqMan allelic discrimination. Dual luciferase reporter assay was carried out to measure the transcriptional activity. We found that the rs353292 polymorphism was associated with an increased risk for developing CRC in heterozygous comparison (adjusted OR = 1.70, 95% CI, 1.32–2.20, P < 0.001), dominant genetic model (adjusted OR = 1.62, 95% CI, 1.26–2.09, P < 0.001), and allele comparison (adjusted OR = 1.46, 95% CI, 1.16–1.84, P = 0.001). The rs353292 CT/TT carriers exhibited a lower expression of miR-143 compared to the CC carriers (P = 0.04). Moreover, the pGL3-rs353292T displayed a significantly lower luciferase activity than pGL3-rs353292C (P < 0.01). These findings indicate that the rs353292 polymorphism is functional and may be a risk factor for the development of CRC.
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Affiliation(s)
- Fang Yuan
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ruifen Sun
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Central Laboratory, Yunnan University of Chinese Traditional Medicine, Kunming 650500, Yunnan, P.R. China
| | - Lijuan Li
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bo Jin
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yanyun Wang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yundan Liang
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Guanglu Che
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Linbo Gao
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lin Zhang
- Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children's Health; Key Laboratory of Obstetric &Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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19
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Pratedrat P, Sopipong W, Makkoch J, Praianantathavorn K, Chuaypen N, Tangkijvanich P, Payungporn S. Single Nucleotide Polymorphisms in miR-149 (rs2292832) and miR-101-1 (rs7536540) Are Not Associated with Hepatocellular Carcinoma in Thai Patients with Hepatitis B Virus Infection. Asian Pac J Cancer Prev 2016; 16:6457-61. [PMID: 26434859 DOI: 10.7314/apjcp.2015.16.15.6457] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
MicroRNAs directly and indirectly influence many biological processes such as apoptosis, cell maintenance, and immune responses, impacting on tumor genesis and metastasis. They modulate gene expression at the post- transcriptional level and are associated with progression of liver disease. Hepatocellular carcinoma (HCC) is a cancer which mostly occurs in males. There are many factors affect HCC development, for example, hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV), co-infection, environmental factors including alcohol, aflatoxin consumption and host-related factors such as age, gender immune response, microRNA and single nucleotide polymorphisms (SNPs). Chronic infection with the hepatitis B virus is the major factor leading to HCC progression since it causes the liver injury. At present, there are many reports regarding the association of SNPs on miRNAs and the HCC progression. In this research, we investigated the role of miR- 149 (rs2292832) and miR-101-1 (rs7536540) with HCC progression in Thai population. The study included 289 Thai subjects including 104 HCC patients, 90 patients with chronic hepatitis B virus infection (CHB) and 95 healthy control subjects. The allele and genotype of rs2292832 and rs7536540 polymorphisms were determined by TaqMan real-time PCR assay. Our results revealed no significant association between miR-149 (rs2292832) and miR-101-1 (rs7536540) and the risk of HCC in our Thai population. However, this research is the first study of miR-149 (rs2292832) and miR-101-1 (rs7536540) in HCC in Thai populations and the results need to be confirmed with a larger population.
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Affiliation(s)
- Pornpitra Pratedrat
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Thailand E-mail :
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20
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Fiorino S, Bacchi-Reggiani ML, Visani M, Acquaviva G, Fornelli A, Masetti M, Tura A, Grizzi F, Zanello M, Mastrangelo L, Lombardi R, Di Tommaso L, Bondi A, Sabbatani S, Domanico A, Fabbri C, Leandri P, Pession A, Jovine E, de Biase D. MicroRNAs as possible biomarkers for diagnosis and prognosis of hepatitis B- and C-related-hepatocellular-carcinoma. World J Gastroenterol 2016; 22:3907-3936. [PMID: 27099435 PMCID: PMC4823242 DOI: 10.3748/wjg.v22.i15.3907] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/05/2016] [Accepted: 03/18/2016] [Indexed: 02/06/2023] Open
Abstract
Aim of the present review is to summarize the current knowledge about the potential relationship between miRNAs and hepatitis B virus (HBV)-hepatitis C virus (HCV) related liver diseases. A systematic computer-based search of published articles, according to the Preferred Reporting Items for Systematic reviews and Meta-Analysis Statement, was performed to identify relevant studies on usefulness of serum/plasma/urine miRNAs, as noninvasive biomarkers for early detection of HBV and HCV-induced hepatocellular carcinoma (HCC) development, as well as for its prognostic evaluation. The used Medical Subject Headings terms and keywords were: “HBV”, “HCV”, “hepatocellular carcinoma”, “microRNAs”, “miRNAs”, “diagnosis”, “prognosis”, “therapy”, “treatment”. Some serum/plasma miRNAs, including miR-21, miR-122, mi-125a/b, miR-199a/b, miR-221, miR-222, miR-223, miR-224 might serve as biomarkers for early diagnosis/prognosis of HCC, but, to date, not definitive results or well-defined panels of miRNAs have been obtained. More well-designed studies, focusing on populations of different geographical areas and involving larger series of patients, should be carried out to improve our knowledge on the potential role of miRNAs for HCC early detection and prognosis.
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21
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Zhang R, Li F, Wang W, Wang X, Li S, Liu J. The effect of antisense inhibitor of miRNA 106b∼25 on the proliferation, invasion, migration, and apoptosis of gastric cancer cell. Tumour Biol 2016; 37:10507-15. [PMID: 26850596 DOI: 10.1007/s13277-016-4937-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 01/29/2016] [Indexed: 12/16/2022] Open
Abstract
Accumulating data has demonstrated that miRNA 106b∼25, which are composed of the highly conserved miRNA 106b, miRNA 93, and miRNA 25, play carcinogenic roles in cancers. We investigated the expression of miRNA 106b∼25 in gastric cancer cells (SGC 7901, MGC 803, BGC 823) and normal gastric epithelial cell then inhibited miRNA 106b∼25 expression via transiently transfecting their antisense inhibitor. After miRNA 106b∼25 cluster was inhibited, MTT, Scratch test, Transwell invasion test, and flow cytometry were applied to investigate the proliferation, invasion, migration, cell cycle, and apoptosis of gastric cancer cell. The expression of miRNA 106b, miRNA 93, and miRNA 25 in gastric cancer cells SGC 7901, MGC 803, and BGC 823 was significantly higher than in gastric epithelial cell GES-1. The most significant suppression of miRNA 106b∼25 expressions can be detected in MGC 803 cell after transiently transfecting their antisense inhibitors. So, MGC 803 cell was selected as our research object. After inhibiting miRNA 106b and miRNA 93 respectively and combined, the proliferation, migration, and invasion of gastric cancer cell MGC 803 were significantly suppressed. The most significant suppression was observed in combined inhibiting group. After miRNA 106b∼25 cluster was inhibited respectively or combined, more gastric cancer cells were arrested in the G0G1 phase. However, there was no statistical difference in comparing with control groups. While the percentages of apoptotic cells increased after miRNA 106b∼25 cluster was inhibited, the statistical difference was detected only in combined inhibiting group. Inhibiting miRNA 106b∼25 cluster via transfecting antisense inhibitor can influence biological behavior of gastric cancer cell.
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Affiliation(s)
- Rupeng Zhang
- Department of Gastric Cancer Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060, China.
| | - Fangxuan Li
- Department of Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Weijia Wang
- Department of Gastric Cancer Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xuejun Wang
- Department of Gastric Cancer Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Shixia Li
- Department of Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Juntian Liu
- Department of Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060, China.
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Association between microRNA-196A2 and microRNA-146A polymorphisms and progression to cirrhosis and hepatocellular carcinoma in patients with viral hepatitis B. Pharmacogenet Genomics 2016; 26:74-9. [DOI: 10.1097/fpc.0000000000000187] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Mullany LE, Wolff RK, Herrick JS, Buas MF, Slattery ML. SNP Regulation of microRNA Expression and Subsequent Colon Cancer Risk. PLoS One 2015; 10:e0143894. [PMID: 26630397 PMCID: PMC4667940 DOI: 10.1371/journal.pone.0143894] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 11/10/2015] [Indexed: 12/27/2022] Open
Abstract
Introduction MicroRNAs (miRNAs) regulate messenger RNAs (mRNAs) and as such have been implicated in a variety of diseases, including cancer. MiRNAs regulate mRNAs through binding of the miRNA 5’ seed sequence (~7–8 nucleotides) to the mRNA 3’ UTRs; polymorphisms in these regions have the potential to alter miRNA-mRNA target associations. SNPs in miRNA genes as well as miRNA-target genes have been proposed to influence cancer risk through altered miRNA expression levels. Methods MiRNA-SNPs and miRNA-target gene-SNPs were identified through the literature. We used SNPs from Genome-Wide Association Study (GWAS) data that were matched to individuals with miRNA expression data generated from an Agilent platform for colon tumor and non-tumor paired tissues. These samples were used to evaluate 327 miRNA-SNP pairs for associations between SNPs and miRNA expression levels as well as for SNP associations with colon cancer. Results Twenty-two miRNAs expressed in non-tumor tissue were significantly different by genotype and 21 SNPs were associated with altered tumor/non-tumor differential miRNA expression across genotypes. Two miRNAs were associated with SNP genotype for both non-tumor and tumor/non-tumor differential expression. Of the 41 miRNAs significantly associated with SNPs all but seven were significantly differentially expressed in colon tumor tissue. Two of the 41 SNPs significantly associated with miRNA expression levels were associated with colon cancer risk: rs8176318 (BRCA1), ORAA 1.31 95% CI 1.01, 1.78, and rs8905 (PRKAR1A), ORGG 2.31 95% CI 1.11, 4.77. Conclusion Of the 327 SNPs identified in the literature as being important because of their potential regulation of miRNA expression levels, 12.5% had statistically significantly associations with miRNA expression. However, only two of these SNPs were significantly associated with colon cancer.
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Affiliation(s)
- Lila E. Mullany
- University of Utah, School of Medicine, Department of Internal Medicine, Salt Lake City, Utah, United States of America
- * E-mail:
| | - Roger K. Wolff
- University of Utah, School of Medicine, Department of Internal Medicine, Salt Lake City, Utah, United States of America
| | - Jennifer S. Herrick
- University of Utah, School of Medicine, Department of Internal Medicine, Salt Lake City, Utah, United States of America
| | - Matthew F. Buas
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Martha L. Slattery
- University of Utah, School of Medicine, Department of Internal Medicine, Salt Lake City, Utah, United States of America
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He S, Zhang DC, Wei C. MicroRNAs as biomarkers for hepatocellular carcinoma diagnosis and prognosis. Clin Res Hepatol Gastroenterol 2015; 39:426-34. [PMID: 25746139 DOI: 10.1016/j.clinre.2015.01.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 12/30/2014] [Accepted: 01/12/2015] [Indexed: 02/04/2023]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world, and it is the second leading cause of cancer-related deaths. Despite improvements in HCC therapy, the overall survival rate is still very low because of the late detection of the tumors. Thus, early detection of HCC offers the best chance of survival for patients. MicroRNAs (miRNAs) are evolutionarily conserved small noncoding RNAs involved in the regulation of gene expression and protein translation. Many studies have shown that they played a very important role in cancer progresses and outcomes. The aberrant expression of miRNAs is common in various human malignancies and it modulates cancer-associated genomic regions or fragile sites. As for the relationship between miRNAs and HCC, several studies have demonstrated that the aberrant expression of specific miRNAs can be detected in HCC patients' serum and plasma or HCC cells and tissues, and miRNAs have shown great promise as diagnostic and prognostic markers for HCC. In the present review, we discussed the applications of miRNAs as biomarkers for HCC diagnosis and prognosis, and the association between miRNAs polymorphisms and the risk of HCC as well.
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Affiliation(s)
- Song He
- Maanshan Center for Clinical Laboratory, Maanshan Municipal Hospital Group, 45, Hubei Road, 243000 Maanshan, China.
| | - De-Chun Zhang
- Molecular Medicine & Tumor Research Center, Chongqing Medical University, Chongqing, China
| | - Cheng Wei
- Maanshan Center for Clinical Laboratory, Maanshan Municipal Hospital Group, 45, Hubei Road, 243000 Maanshan, China
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Liang Y, Zhao G, Sun R, Mao Y, Li G, Chen X, Gao L, Hu Z. Genetic variants in the promoters of let-7 family are associated with an increased risk of major depressive disorder. J Affect Disord 2015; 183:295-9. [PMID: 26047307 DOI: 10.1016/j.jad.2015.04.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 04/21/2015] [Accepted: 04/21/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Let-7 family plays a critical role in the pathogenesis of major depressive disorder (MDD). Genetic polymorphisms in the promoters of miRNA may influence individual׳s susceptibility to diseases. The purpose of this study was to investigate the association between rs10877887 and rs13293512 polymorphisms in the promoters of let-7 family and the risk of MDD. METHOD Polymerase chain reaction-restriction fragment length polymorphism and DNA sequencing assays were used to analyze the rs10877887 and rs13293512 polymorphisms in 237 MDD patients and 296 controls. RESULTS We found that the rs10877887 CC genotype was associated with an increased risk of MDD (CC vs. TT: OR=1.73, 95% CI, 1.04-2.86, P=0.03, and CC vs. TT/TC OR=1.74, 95% CI, 1.08-2.80, P=0.02, respectively). Similarly increased risk was also observed for the rs13293512 (CC vs. TT: OR=1.83, 95% CI, 1.12-2.99, P=0.015; CC vs. TT/TC OR=1.84, 95% CI, 1.20-2.81, P=0.005; and C vs. T: OR=1.32, 95% CI, 1.03-1.68, P=0.03, respectively). Stratification analysis showed that patients with the rs13293512 TC and CC genotypes had a 2.29 and 2.56-fold increased risk of MDD recurrence after treatment (TC vs. TT: 95% CI, 1.23-4.25, P=0.008; CC vs. TT: 95% CI, 1.25-5.23, P=0.009, respectively). LIMITATIONS Relatively small sample size and hospital-based study design may influence the results. CONCLUSIONS Our findings suggest that the rs10877887 and rs13293512 polymorphisms may be related to the development of MDD.
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Affiliation(s)
- Yundan Liang
- Department of Forensic Psychiatry, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Gaofeng Zhao
- Mental Health Hospital of Jining, Jining, Shandong 272051, PR China
| | - Ruifen Sun
- Central Laboratory, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan 650500, PR China
| | - Yuanyi Mao
- Criminal Detachment of Chengdu Public Security Bureau, Chengdu, Sichuan 610017, PR China
| | - Gangqin Li
- Department of Forensic Psychiatry, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Xueyan Chen
- Department of Forensic Psychiatry, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Linbo Gao
- Laboratory of Molecular and Translational Medicine, West China Institute of Women and Children׳s Health; West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China.
| | - Zeqing Hu
- Department of Forensic Psychiatry, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China.
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Sun Y, Guo F, Bagnoli M, Xue FX, Sun BC, Shmulevich I, Mezzanzanica D, Chen KX, Sood AK, Yang D, Zhang W. Key nodes of a microRNA network associated with the integrated mesenchymal subtype of high-grade serous ovarian cancer. CHINESE JOURNAL OF CANCER 2015; 34:28-40. [PMID: 25556616 PMCID: PMC4302087 DOI: 10.5732/cjc.014.10284] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metastasis is the main cause of cancer mortality. One of the initiating events of cancer metastasis of epithelial tumors is epithelial-to-mesenchymal transition (EMT), during which cells dedifferentiate from a relatively rigid cell structure/morphology to a flexible and changeable structure/morphology often associated with mesenchymal cells. The presence of EMT in human epithelial tumors is reflected by the increased expression of genes and levels of proteins that are preferentially present in mesenchymal cells. The combined presence of these genes forms the basis of mesenchymal gene signatures, which are the foundation for classifying a mesenchymal subtype of tumors. Indeed, tumor classification schemes that use clustering analysis of large genomic characterizations, like The Cancer Genome Atlas (TCGA), have defined mesenchymal subtype in a number of cancer types, such as high-grade serous ovarian cancer and glioblastoma. However, recent analyses have shown that gene expression-based classifications of mesenchymal subtypes often do not associate with poor survival. This “paradox” can be ameliorated using integrated analysis that combines multiple data types. We recently found that integrating mRNA and microRNA (miRNA) data revealed an integrated mesenchymal subtype that is consistently associated with poor survival in multiple cohorts of patients with serous ovarian cancer. This network consists of 8 major miRNAs and 214 mRNAs. Among the 8 miRNAs, 4 are known to be regulators of EMT. This review provides a summary of these 8 miRNAs, which were associated with the integrated mesenchymal subtype of serous ovarian cancer.
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Affiliation(s)
- Yan Sun
- Departments of Pathology, The Key Laboratory of Tianjin Cancer Prevention and Treatment, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P. R. China. ,
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Buas MF, Onstad L, Levine DM, Risch HA, Chow WH, Liu G, Fitzgerald RC, Bernstein L, Ye W, Bird NC, Romero Y, Casson AG, Corley DA, Shaheen NJ, Wu AH, Gammon MD, Reid BJ, Hardie LJ, Peters U, Whiteman DC, Vaughan TL. MiRNA-Related SNPs and Risk of Esophageal Adenocarcinoma and Barrett's Esophagus: Post Genome-Wide Association Analysis in the BEACON Consortium. PLoS One 2015; 10:e0128617. [PMID: 26039359 PMCID: PMC4454432 DOI: 10.1371/journal.pone.0128617] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/30/2015] [Indexed: 01/09/2023] Open
Abstract
Incidence of esophageal adenocarcinoma (EA) has increased substantially in recent decades. Multiple risk factors have been identified for EA and its precursor, Barrett’s esophagus (BE), such as reflux, European ancestry, male sex, obesity, and tobacco smoking, and several germline genetic variants were recently associated with disease risk. Using data from the Barrett’s and Esophageal Adenocarcinoma Consortium (BEACON) genome-wide association study (GWAS) of 2,515 EA cases, 3,295 BE cases, and 3,207 controls, we examined single nucleotide polymorphisms (SNPs) that potentially affect the biogenesis or biological activity of microRNAs (miRNAs), small non-coding RNAs implicated in post-transcriptional gene regulation, and deregulated in many cancers, including EA. Polymorphisms in three classes of genes were examined for association with risk of EA or BE: miRNA biogenesis genes (157 SNPs, 21 genes); miRNA gene loci (234 SNPs, 210 genes); and miRNA-targeted mRNAs (177 SNPs, 158 genes). Nominal associations (P<0.05) of 29 SNPs with EA risk, and 25 SNPs with BE risk, were observed. None remained significant after correction for multiple comparisons (FDR q>0.50), and we did not find evidence for interactions between variants analyzed and two risk factors for EA/BE (smoking and obesity). This analysis provides the most extensive assessment to date of miRNA-related SNPs in relation to risk of EA and BE. While common genetic variants within components of the miRNA biogenesis core pathway appear unlikely to modulate susceptibility to EA or BE, further studies may be warranted to examine potential associations between unassessed variants in miRNA genes and targets with disease risk.
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Affiliation(s)
- Matthew F. Buas
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- * E-mail: (MFB); (TLV)
| | - Lynn Onstad
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - David M. Levine
- Department of Biostatistics, University of Washington, School of Public Health, Seattle, Washington, United States of America
| | - Harvey A. Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, United States of America
| | - Wong-Ho Chow
- Department of Epidemiology, MD Anderson Cancer Center, Houston, TX, United States of America
| | - Geoffrey Liu
- Pharmacogenomic Epidemiology, Ontario Cancer Institute, Toronto, Ontario, Canada, M5G 2M9
| | - Rebecca C. Fitzgerald
- Medical Research Council (MRC) Cancer Cell Unit, Hutchison-MRC Research Centre and University of Cambridge, Cambridge, United Kingdom
| | - Leslie Bernstein
- Department of Populations Sciences, Beckman Research Institute and City of Hope Comprehensive Cancer Center, Duarte, California, United States of America
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Nigel C. Bird
- Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom
| | - Yvonne Romero
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, United States of America
- The Romero Registry, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Alan G. Casson
- Department of Surgery, University of Saskatchewan, Saskatoon, SK, Canada
| | - Douglas A. Corley
- Division of Research, Kaiser Permanente Northern California, Oakland, California, United States of America
- San Francisco Medical Center, Kaiser Permanente Northern California, San Francisco, California, United States of America
| | - Nicholas J. Shaheen
- Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Anna H. Wu
- Department of Preventive Medicine, University of Southern California/Norris Comprehensive Cancer Center, Los Angeles, California, United States of America
| | - Marilie D. Gammon
- Department of Epidemiology, University of North Carolina School of Public Health, Chapel Hill, North Carolina, United States of America
| | - Brian J. Reid
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Laura J. Hardie
- Division of Epidemiology, University of Leeds, Leeds, United Kingdom
| | - Ulrike Peters
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Epidemiology, University of Washington, School of Public Health, Seattle, Washington, United States of America
| | - David C. Whiteman
- Cancer Control, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Thomas L. Vaughan
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Epidemiology, University of Washington, School of Public Health, Seattle, Washington, United States of America
- * E-mail: (MFB); (TLV)
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Cammaerts S, Strazisar M, De Rijk P, Del Favero J. Genetic variants in microRNA genes: impact on microRNA expression, function, and disease. Front Genet 2015; 6:186. [PMID: 26052338 PMCID: PMC4439572 DOI: 10.3389/fgene.2015.00186] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/05/2015] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) are important regulators of gene expression and like any other gene, their coding sequences are subject to genetic variation. Variants in miRNA genes can have profound effects on miRNA functionality at all levels, including miRNA transcription, maturation, and target specificity, and as such they can also contribute to disease. The impact of variants in miRNA genes is the focus of the present review. To put these effects into context, we first discuss the requirements of miRNA transcripts for maturation. In the last part an overview of available databases and tools and experimental approaches to investigate miRNA variants related to human disease is presented.
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Affiliation(s)
- Sophia Cammaerts
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, University of Antwerp Antwerp, Belgium
| | - Mojca Strazisar
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, University of Antwerp Antwerp, Belgium
| | - Peter De Rijk
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, University of Antwerp Antwerp, Belgium
| | - Jurgen Del Favero
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, University of Antwerp Antwerp, Belgium ; Multiplicom N.V., Niel Belgium
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Sidhu K, Kapoor NR, Pandey V, Kumar V. The "Macro" World of microRNAs in Hepatocellular Carcinoma. Front Oncol 2015; 5:68. [PMID: 25859429 PMCID: PMC4373247 DOI: 10.3389/fonc.2015.00068] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 03/08/2015] [Indexed: 12/23/2022] Open
Abstract
Hepatotropic viruses such as hepatitis B virus (HBV) and hepatitis C virus (HCV) are the major etiological agents associated with development of hepatocellular carcinoma (HCC). Progression of HCC is a multistep process that requires sequential or parallel deregulation of oncogenic and tumor suppressive pathways leading to chromosomal instability and neoplastic phenotype. In the recent years, microRNAs (miRNAs) have carved their own niche alongside oncogenes and tumor suppressors, owing to their innate ability to receive and relay multiple signals. Not surprisingly, miRNAs are fast emerging as central player in myriads of malignancies including HCC. miRNAs are reported to participate in initiation and progression of HCC, and have also been clinically correlated with risk assessment, disease grade, aggressiveness, and prognosis. Despite extensive data available on the role of miRNAs in HCC, there is a pressing need to integrate and evaluate these datasets to find its correlation, if any, with causal agents in order to devise novel interventional modalities. Through this review, we attempt to bridge the gap by consolidating the current knowledge and concepts in the field of HCC-related miRNAs with special emphasis on HBV and HCV. Further, we assess the potential of common as well as unique signatures that may be useful in developing novel biomarkers and therapeutics.
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Affiliation(s)
- Kaveri Sidhu
- Virology Group, International Centre for Genetic Engineering and Biotechnology (ICGEB) , New Delhi , India
| | - Neetu Rohit Kapoor
- Virology Group, International Centre for Genetic Engineering and Biotechnology (ICGEB) , New Delhi , India
| | - Vijaya Pandey
- Virology Group, International Centre for Genetic Engineering and Biotechnology (ICGEB) , New Delhi , India
| | - Vijay Kumar
- Virology Group, International Centre for Genetic Engineering and Biotechnology (ICGEB) , New Delhi , India
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Abstract
Recent studies have suggested that noncoding RNAs (ncRNAs) contribute to the pathogenesis and progression of hepatocellular carcinoma (HCC). These RNA genes may be involved in various pathobiological processes such as cell proliferation, apoptosis, angiogenesis, invasion, and metastasis. Aberrant expression of ncRNA resulting from deregulated epigenetic, transcriptional, or posttranscriptional activity has been described in several studies. ncRNAs are comprised of a highly diverse group of transcripts that include microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) as well as several other types of RNA genes. Understanding the molecular mechanisms by which ncRNA contribute to hepatocarcinogenesis may enable the design of ncRNA-based therapeutics for HCC. In this review, the authors provide a perspective on therapeutic applications based on the emerging evidence of a contributory role of miRNAs and lncRNAs to the pathogenesis and progression of HCC. In addition, ncRNAs that are deregulated in expression in HCC may have utility as potential prognostic or diagnostic markers.
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Affiliation(s)
- Joseph George
- Research Associate, Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224. Tel 904-956-3257
| | - Tushar Patel
- Professor of Medicine, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, 904-953-3257
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31
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Morishita A, Masaki T. miRNA in hepatocellular carcinoma. Hepatol Res 2015; 45:128-41. [PMID: 25040738 DOI: 10.1111/hepr.12386] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 06/27/2014] [Accepted: 07/01/2014] [Indexed: 12/19/2022]
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer deaths worldwide. Despite improvements in HCC therapy, the prognosis for HCC patients remains poor due to a high incidence of recurrence. An improved understanding of the pathogenesis of HCC development would facilitate the development of more effective outcomes for the diagnosis and treatment of HCC at earlier stages. miRNA are small, endogenous, non-coding, ssRNA that are 21-30 nucleotides in length and modulate the expression of various target genes at the post-transcriptional and translational levels. Aberrant expression of miRNA is common in various human malignancies and modulates cancer-associated genomic regions or fragile sites. As for the relationship between miRNA and HCC, several studies have demonstrated that the aberrant expression of specific miRNA can be detected in HCC cells and tissues. However, little is known about the mechanisms of miRNA-related cell proliferation and development. In this review, we summarize the central and potential roles of miRNA in the pathogenesis of HCC and elucidate new possibilities that may be useful as diagnostic and prognostic markers, as well as novel therapeutic targets in HCC.
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Affiliation(s)
- Asahiro Morishita
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, Kagawa, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, Kagawa, Japan
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Chen C, Yang S, Chaugai S, Wang Y, Wang DW. Meta-analysis of Hsa-mir-499 polymorphism (rs3746444) for cancer risk: evidence from 31 case-control studies. BMC MEDICAL GENETICS 2014; 15:126. [PMID: 25433484 PMCID: PMC4411927 DOI: 10.1186/s12881-014-0126-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 11/11/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) are a family of endogenous, small and non-coding RNAs that regulate gene expression negatively at the post-transcriptional level by suppressing translation or degrading target mRNAs, and are involved in diverse biological and pathological processes. Single nucleotide polymorphisms (SNPs) which are located in the miRNA-coding genes may participate in the process of development and diseases by altering the expression of mature miRNA. Recent studies investigating the association between hsa-mir-499 polymorphism (rs3746444) and cancer risk have yielded conflicting results. METHODS In this meta-analysis, we conducted a search of case-control studies on the associations of SNP rs3746444 with susceptibility to cancer in electronic databases. A total of 31 studies involving 12799 cases and 14507 controls were retrieved and the strength of the association was estimated by pooled odds ratios (ORs) and 95% confidence intervals (CIs). Hardy-Weinberg equilibrium (HWE) was assessed by the goodness-of-fit chi-square test in controls. Subgroup analyses were done by racial descent and cancer type. Publication bias of literatures was evaluated by visual inspection of funnel plots and the linear regression asymmetry test by Egger et al. Sensitivity analysis was conducted by excluding one study at a time to examine the influence of individual data set on the pooled ORs. RESULTS Overall, significant association between rs3746444 polymorphism and susceptibility to cancer was identified in TC versus TT and TC/CC versus TT (dominant) models. In the stratified analyses, increased risks were found in Asians, but not in Caucasians in all comparison models tested. Moreover, significant association with an increased risk was found in Chinese population. Also, much higher significant association with increased cancer risks were found in Iranian population. In different cancer types, a decreased risk was found in esophageal cancer. CONCLUSION Our meta-analysis suggested that hsa-mir-499 rs3746444 T > C polymorphism is associated with the risk of cancer in Asians, mainly in Iranian and Chinese population. However, rs3746444 T > C polymorphism is negatively associated with the risk of esophageal cancer.
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Affiliation(s)
- Chen Chen
- Department of Internal Medicine and the Institute of Hypertension, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, 430030, People's Republic of China.
| | - Shenglan Yang
- Department of Internal Medicine and the Institute of Hypertension, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, 430030, People's Republic of China. .,Department of Internal Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Sandip Chaugai
- Department of Internal Medicine and the Institute of Hypertension, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, 430030, People's Republic of China.
| | - Yan Wang
- Department of Internal Medicine and the Institute of Hypertension, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, 430030, People's Republic of China.
| | - Dao Wen Wang
- Department of Internal Medicine and the Institute of Hypertension, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095# Jiefang Ave, Wuhan, 430030, People's Republic of China.
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Espinosa-Parrilla Y, Muñoz X, Bonet C, Garcia N, Venceslá A, Yiannakouris N, Naccarati A, Sieri S, Panico S, Huerta JM, Barricarte A, Menéndez V, Sánchez-Cantalejo E, Dorronsoro M, Brennan P, Duarte-Salles T, B As Bueno-de-Mesquita H, Weiderpass E, Lund E, Clavel-Chapelon F, Boutron-Ruault MC, Racine A, Numans ME, Tumino R, Canzian F, Campa D, Sund M, Johansson M, Ohlsson B, Lindkvist B, Overvad K, Tjønneland A, Palli D, Travis RC, Khaw KT, Wareham N, Boeing H, Nesi G, Riboli E, Gonzalez CA, Sala N. Genetic association of gastric cancer with miRNA clusters including the cancer-related genes MIR29, MIR25, MIR93 and MIR106: results from the EPIC-EURGAST study. Int J Cancer 2014; 135:2065-76. [PMID: 24643999 DOI: 10.1002/ijc.28850] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/24/2014] [Accepted: 01/28/2014] [Indexed: 12/12/2022]
Abstract
MicroRNAs (miRNAs) are post-transcriptional gene regulators involved in a wide range of biological processes including tumorigenesis. Deregulation of miRNA pathways has been associated with cancer but the contribution of their genetic variability to this disorder is poorly known. We analyzed the genetic association of gastric cancer (GC) and its anatomical and histological subtypes, with 133 single-nucleotide polymorphisms (SNPs) tagging 15 isolated miRNAs and 24 miRNA clusters potentially involved in cancer, in 365 GC cases and 1,284 matched controls within the European Prospective Investigation into Cancer and Nutrition cohort. Various SNPs were associated with GC under the log-additive model. Furthermore, several of these miRNAs passed the gene-based permutation test when analyzed according to GC subtypes: three tagSNPs of the miR-29a/miR-29b-1 cluster were associated with diffuse subtype (minimum p-value = 1.7 × 10(-4) ; odds ratio, OR = 1.72; 95% confidence interval, CI = 1.30-2.28), two tagSNPs of the miR-25/miR-93/miR-106b cluster were associated with cardia GC (minimum p-value = 5.38 × 10(-3) ; OR = 0.56, 95% CI = 0.37-0.86) and one tagSNP of the miR-363/miR-92a-2/miR-19b-2/miR-20b/miR-18b/miR-106a cluster was associated with noncardia GC (minimum p-value = 5.40 × 10(-3) ; OR = 1.41, 95% CI = 1.12-1.78). Some functionally validated target genes of these miRNAs are implicated in cancer-related processes such as methylation (DNMT3A, DNMT3B), cell cycle (E2F1, CDKN1A, CDKN1C), apoptosis (BCL2L11, MCL1), angiogenesis (VEGFA) and progression (PIK3R1, MYCN). Furthermore, we identified genetic interactions between variants tagging these miRNAs and variants in their validated target genes. Deregulation of the expression of these miRNAs in GC also supports our findings, altogether suggesting for the fist time that genetic variation in MIR29, MIR25, MIR93 and MIR106b may have a critical role in genetic susceptibility to GC and could contribute to the molecular mechanisms of gastric carcinogenesis.
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Affiliation(s)
- Yolanda Espinosa-Parrilla
- Institut de Biologia Evolutiva, CSIC-Universitat Pompeu Fabra, Departament de Ciències Experimentals i de la Salut, UPF, Barcelona, Spain; Programa de Genética Humana, ICBM, Facultad de Medicina, Universidad de Chile, Santiago de Chile, Chile
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Xu Q, Liu JW, Yuan Y. Comprehensive assessment of the association between miRNA polymorphisms and gastric cancer risk. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 763:148-60. [PMID: 25795117 DOI: 10.1016/j.mrrev.2014.09.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 08/12/2014] [Accepted: 09/30/2014] [Indexed: 02/06/2023]
Abstract
Single nucleotide polymorphisms (SNPs) in pri- or pre-microRNAs (miRNAs) were found to be associated with gastric cancer risk. The aim of this study was to systematically review with update meta-analysis for the association of miRNA SNPs with gastric cancer risk. We systematically reviewed a total of 31 SNPs in the precursor genes of 29 miRNAs associated with overall cancer risk. Meanwhile, 13 case-control studies with a total of 9044 gastric cancer cases and 11,762 controls were included in a meta-analysis of five highly studied pre-miRNA SNPs (miR-146a rs2910164, miR-196a2 rs11614913, miR-499 rs3746444, miR-149 rs2292832 and miR-27a rs895819). Our results show both the homozygous miR-27a rs895819 and the miR-149 rs2292832 heterozygote genotype were associated with a decreased risk of gastric cancer when compared with wild type. In the stratified analysis, in some subgroup, heterozygous miR-146a rs2910164 was associated with a decreased risk of gastric cancer; and the variant genotype of miR-196a-2 rs11614913 was associated with an increased risk. No association was found between miR-499 rs3746444 and gastric cancer risk. In summary, miR-27a rs895819 and miR-149 rs2292832 are of potential forewarning ability for gastric cancer risk.
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Affiliation(s)
- Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jing-wei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.
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Guo F, Han X, Zhang J, Zhao X, Lou J, Chen H, Huang X. Repetitive transcranial magnetic stimulation promotes neural stem cell proliferation via the regulation of MiR-25 in a rat model of focal cerebral ischemia. PLoS One 2014; 9:e109267. [PMID: 25302788 PMCID: PMC4193773 DOI: 10.1371/journal.pone.0109267] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 09/08/2014] [Indexed: 01/03/2023] Open
Abstract
Repetitive transcranial magnetic stimulation (rTMS) has increasingly been studied over the past decade to determine whether it has a therapeutic benefit on focal cerebral ischemia. However, the underlying mechanism of rTMS in this process remains unclear. In the current study, we investigated the effects of rTMS on the proliferation of adult neural stem cells (NSCs) and explored microRNAs (miRNAs) that were affected by rTMS. Our data showed that 10 Hz rTMS significantly increased the proliferation of adult NSCs after focal cerebral ischemia in the subventricular zone (SVZ), and the expression of miR-25 was obviously up-regulated in the ischemic cortex after rTMS. p57, an identified miR-25 target gene that regulates factors linked to NSC proliferation, was also evaluated, and it exhibited down-regulation. To further verify the role of miR-25, rats were injected with a single dose of antagomir-25 and were subjected to focal cerebral ischemia followed by rTMS treatment. The results confirmed that miR-25 could be repressed specifically and could drive the up-regulation of its target gene (p57), which resulted in the inhibition of adult NSC proliferation in the SVZ after rTMS. Thus, our studies strongly indicated that 10 Hz rTMS can promote the proliferation of adult NSCs in the SVZ after focal cerebral ischemia by regulating the miR-25/p57 pathway.
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Affiliation(s)
- Feng Guo
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohua Han
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinghui Zhang
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiuxiu Zhao
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jicheng Lou
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Chen
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaolin Huang
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
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Fan HX, Tang H. Complex interactions between microRNAs and hepatitis B/C viruses. World J Gastroenterol 2014; 20:13477-13492. [PMID: 25309078 PMCID: PMC4188899 DOI: 10.3748/wjg.v20.i37.13477] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/28/2014] [Accepted: 06/05/2014] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small noncoding RNAs that post-transcriptionally regulate the expression of many target genes via mRNA degradation or translation inhibition. Many studies have shown that miRNAs are involved in the modulation of gene expression and replication of hepatitis B virus (HBV) and hepatitis C virus (HCV) and play a pivotal role in host-virus interactions. Increasing evidence also demonstrates that viral infection leads to alteration of the miRNA expression profile in hepatic tissues or circulation. The deregulated miRNAs participate in hepatocellular carcinoma (HCC) initiation and progression by functioning as oncogenes or tumor suppressor genes by targeting various genes involved in cancer-related signaling pathways. The distinct expression pattern of miRNAs may be a useful marker for the diagnosis and prognosis of virus-related diseases considering the limitation of currently used biomarkers. Moreover, the role of deregulated miRNA in host-virus interactions and HCC development suggested that miRNAs may serve as therapeutic targets or as tools. In this review, we summarize the recent findings about the deregulation and the role of miRNAs during HBV/HCV infection and HCC development, and we discuss the possible mechanism of action of miRNAs in the pathogenesis of virus-related diseases. Furthermore, we discuss the potential of using miRNAs as markers for diagnosis and prognosis as well as therapeutic targets and drugs.
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Zhou X, Zhang X, Yang Y, Li Z, Du L, Dong Z, Qu A, Jiang X, Li P, Wang C. Urinary cell-free microRNA-106b as a novel biomarker for detection of bladder cancer. Med Oncol 2014; 31:197. [PMID: 25168920 DOI: 10.1007/s12032-014-0197-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/22/2014] [Indexed: 12/13/2022]
Abstract
Cell-free microRNAs (miRNAs) stably and abundantly exist in body fluids and emerging evidence suggests cell-free miRNAs as a novel class of noninvasive disease biomarkers. In this study, we hypothesized that the quantitative detection of the oncogenic miR-106b-25 cluster in urine could be a useful clinical biomarker for bladder cancer (BCa). Three members of the miR-106b-25 cluster (miR-106b, miR-93 and miR-25) were quantified by real-time RT-PCR in urine supernatant of 112 BCa patients and 78 age-matched controls. In our study, the urinary levels of miR-106b were significantly higher in BCa patients than controls (P<0.001). No significant difference was observed in the urinary levels of miR-93 and miR-25 between two groups. Furthermore, the levels of urinary miR-106b were significantly reduced in postoperative samples compared with the levels in the preoperative samples (P=0.007). With respect of clinicopathological characteristics, the level of urinary miR-106b was associated with advanced tumor stage. Receiver operating characteristic (ROC) analysis revealed that urinary miR-106b had considerable diagnostic accuracy, yielding an AUC (the areas under the ROC curve) of 0.802 with 76.8% sensitivity and 72.4% specificity in differentiating BCa from controls. In conclusion, our data indicate that urinary cell-free miR-106b might provide new complementary tumor biomarkers for BCa.
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Affiliation(s)
- Xuanjun Zhou
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, 107 Wenhua Xi Road, Jinan, 250012, China
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Wang Z, Li X. The role of noncoding RNA in hepatocellular carcinoma. Gland Surg 2014; 2:25-9. [PMID: 25083452 DOI: 10.3978/j.issn.2227-684x.2013.02.07] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 02/25/2013] [Indexed: 12/13/2022]
Abstract
Increasing noncoding RNAs (ncRNAs) were found to show abnormal expression patterns in various human cancers. Based on their length, ncRNAs are briefly divided into two categories. Transcripts that are shorter than 200 nucleotides are recognized as short/small noncoding RNAs and greater than 200 nucleotides as long noncoding RNAs (lncRNAs). Short/small noncoding RNAs include microRNAs, piRNAs, snoRNAs, and endogenous siRNAs. Numerous studies have revealed that these short/small ncRNA play important roles in multiple biological processes and tumorigenesis. In contrast to small ncRNAs, long noncoding RNAs are much less known concerning their functions in human cancers especially in hepatocellular carcinoma (HCC). In this review, we highlight recent progress regarding HCC development, tumorigenesis, metastasis, clinical implication, as well as the role in the risk of HBV infection.
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Affiliation(s)
- Zhuolu Wang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Xinying Li
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
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Chu R, Mo G, Duan Z, Huang M, Chang J, Li X, Liu P. miRNAs affect the development of hepatocellular carcinoma via dysregulation of their biogenesis and expression. Cell Commun Signal 2014; 12:45. [PMID: 25012758 PMCID: PMC4117189 DOI: 10.1186/s12964-014-0045-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 06/24/2014] [Indexed: 02/08/2023] Open
Abstract
The pathogenesis of hepatocellular carcinoma (HCC) is not fully understood, which has affected the early diagnosis and treatment of HCC and the survival time of patients. MicroRNAs (miRNAs) are a class of evolutionarily conserved small, non-coding RNAs, which regulate the expression of various genes post-transcriptionally. Emerging evidence indicates that the key enzymes involved in the miRNA biosynthesis pathway and some tumor-specific miRNAs are widely deregulated or upregulated in HCC and closely associated with the occurrence and development of various cancers, including HCC. Early studies have shown that miRNAs have critical roles in HCC progression by targeting many critical protein-coding genes, thereby contributing to the promotion of cell proliferation; the avoidance of apoptosis, inducing via angiogenesis; and the activation of invasion and metastasis pathways. Experimental data indicate that discovery of increasing numbers of aberrantly expressed miRNAs has opened up a new field for investigating the molecular mechanism of HCC progression. In this review, we describe the current knowledge about the roles and validated targets of miRNAs in the above pathways that are known to be hallmarks of HCC, and we also describe the influence of genetic variations in miRNA biosynthesis and genes.
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40
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Liu Y, Xie K, Wen J, Deng M, Li J, Hu Z. A genetic variant in microRNA-122 regulatory region confers risk for chronic hepatitis B virus infection and hepatocellular carcinoma in Han Chinese. J Med Virol 2014; 86:1669-74. [PMID: 24995424 DOI: 10.1002/jmv.23996] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2014] [Indexed: 12/12/2022]
Abstract
miR-122 plays a vital role in the development of chronic hepatitis B virus (HBV) infection and hepatocellular carcinoma (HCC). Based on data from the Encyclopedia of DNA Elements (ENCODE), two single nucleotide polymorphisms (SNPs), rs4309483 and rs4503880, were identified in the upstream regulatory region of miR-122. A case-control study consisting of 1,300 HBV-positive HCC cases, 1,344 HBV carriers, and 1,344 persons who cleared HBV naturally was carried out to test the association between the two SNPs and the risk for chronic HBV infection and HCC. The CA/AA genotypes of rs4309483 were associated with significantly increased risk for HCC [adjusted odds ratio (OR) = 1.21, 95% confidence intervals (CIs) = 1.02-1.43, P = 0.025] compared with HBV carriers, but decreased risk for chronic HBV infection (adjusted OR = 0.82, 95% CIs = 0.70-0.97, P = 0.017) compared with persons who cleared HBV naturally. The genotype-expression correlation between rs4309483 and the expression of primary or mature miR-122 expression was investigated in 29 pairs of HBV positive HCC and noncancerous liver tissues. In noncancerous liver tissues, subjects carrying the CA genotype exhibited significantly lower expression level of pri-miR-122 than those carrying the CC genotype. In addition, positive or inverse correlation between the expression levels of pri-miR-122 and mature miR-122 were observed in HCC tissues or noncancerous tissues, respectively. These findings indicate that the C to A base change of rs4309483 may alter the expression of miR-122, thus providing protective effect from chronic HBV infection but an increased risk for HCC in HBV carriers.
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Affiliation(s)
- Yao Liu
- Jiangsu Key Laboratory of Cancer Biomarkers, Prevention, and Treatment, MOE Key Laboratory of Modern Toxicology, and State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Pathology Center and Department of Pathology, Soochow University, Suzhou, China
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Tan W, Li Y, Lim SG, Tan TMC. miR-106b-25/miR-17-92 clusters: Polycistrons with oncogenic roles in hepatocellular carcinoma. World J Gastroenterol 2014; 20:5962-5972. [PMID: 24876719 PMCID: PMC4033436 DOI: 10.3748/wjg.v20.i20.5962] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 01/11/2014] [Accepted: 04/03/2014] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs are small endogenously expressed RNA molecules which are involved in the process of silencing gene expression through translational regulation. The polycistronic miR-17-92 cluster is the first microRNA cluster shown to play a role in tumorigenesis. It has two other paralogs in the human genome, the miR-106b-25 cluster and the miR-106a-363 cluster. Collectively, the microRNAs encoded by these clusters can be further grouped based on the seed sequences into four families, namely the miR-17, the miR-92, the miR-18 and the miR-19 families. Over-expression of the miR-106b-25 and miR-17-92 clusters has been reported not only during the development of cirrhosis but also subsequently during the development of hepatocellular carcinoma. Members of these clusters have also been shown to affect the replication of hepatitis B and hepatitis C viruses. Various targets of these microRNAs have been identified, and these targets are involved in tumor growth, cell survival and metastasis. In this review, we first describe the regulation of these clusters by c-Myc and E2F1, and how the members of these clusters in turn regulate E2F1 expression forming an auto-regulatory loop. In addition, the roles of the various members of the clusters in affecting relevant target gene expression in the pathogenesis of hepatocellular carcinoma will also be discussed.
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Qi F, Huang M, Pan Y, Liu Y, Liu J, Wen J, Xie K, Shen H, Ma H, Miao Y, Hu Z. A genetic variant in the promoter region of miR-106b-25 cluster predict clinical outcome of HBV-related hepatocellular carcinoma in Chinese. PLoS One 2014; 9:e85394. [PMID: 24416400 PMCID: PMC3885710 DOI: 10.1371/journal.pone.0085394] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/04/2013] [Indexed: 02/07/2023] Open
Abstract
Background MiR-106b-25 cluster, hosted in intron 13 of MCM7, may play integral roles in diverse processes including immune response, tumorigenesis and progression. A single nucleotide polymorphism (SNP), rs999885, is located in the promoter region of MCM7. Our previous study showed that the A to G base change of rs999885 may provide an increased risk for HCC in HBV persistent carriers by altering the expression of the miR-106b-25 cluster. However, it is unknown whether rs999885 is associated with prognosis of intermediate or advanced HBV-related hepatocellular carcinoma (HCC) patients. Methods The SNP, rs999885, was genotyped by using the TaqMan allelic discrimination Assay in 414 intermediate or advanced HCC patients. Log-rank test and Cox proportional hazard models were used for survival analysis. Results The variant genotypes of rs999885 were associated with a significantly decreased risk of death for intermediate or advanced HCC [additive model: adjusted hazard ratio (HR) = 0.76,95% confidence intervals (CI) = 0.59–0.97]. Further stepwise regression analysis suggested that rs999885 was an independently protective factor for the prognosis of HCC in the final model (additive model: adjusted HR = 0.72, 95% CI = 0.56–0.91, P = 0.007). Conclusions These findings indicate that the A to G base change of rs999885 may provide a protective effect on the prognosis of intermediate or advanced HCC in Chinese.
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Affiliation(s)
- Fuzhen Qi
- Department of Hepatopancreatobiliary Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China
| | - Mingde Huang
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China
| | - Yun Pan
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yao Liu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jibin Liu
- Department of Hepatobiliary Surgery, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Juan Wen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Kaipeng Xie
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
- * E-mail: (HM); (YM); (ZH)
| | - Yi Miao
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- * E-mail: (HM); (YM); (ZH)
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
- * E-mail: (HM); (YM); (ZH)
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Li M, Guan X, Sun Y, Mi J, Shu X, Liu F, Li C. miR-92a family and their target genes in tumorigenesis and metastasis. Exp Cell Res 2014; 323:1-6. [PMID: 24394541 DOI: 10.1016/j.yexcr.2013.12.025] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 12/18/2013] [Indexed: 01/01/2023]
Abstract
The miR-92a family, including miR-25, miR-92a-1, miR-92a-2 and miR-363, arises from three different paralog clusters miR-17-92, miR-106a-363, and miR-106b-25 that are highly conservative in the process of evolution, and it was thought as a group of microRNAs (miRNAs) correlated with endothelial cells. Aberrant expression of miR-92a family was detected in multiple cancers, and the disturbance of miR-92a family was related with tumorigenesis and tumor development. In this review, the progress on the relationship between miR-92a family and their target genes and malignant tumors will be summarized.
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Affiliation(s)
- Molin Li
- Department of Pathophysiology, Basic Medical Science of Dalian Medical University, Dalian 116044, China; Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian 116044, China.
| | - Xingfang Guan
- Department of Pathophysiology, Basic Medical Science of Dalian Medical University, Dalian 116044, China
| | - Yuqiang Sun
- Department of Pathophysiology, Basic Medical Science of Dalian Medical University, Dalian 116044, China
| | - Jun Mi
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian 116044, China
| | - Xiaohong Shu
- College of Pharmacy, Dalian Medical University Cancer Center, Dalian 116044, China
| | - Fang Liu
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China
| | - Chuangang Li
- Department of Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China.
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A potentially functional polymorphism in the promoter region of let-7 family is associated with survival of hepatocellular carcinoma. Cancer Epidemiol 2013; 37:998-1002. [PMID: 24103425 DOI: 10.1016/j.canep.2013.09.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 09/05/2013] [Accepted: 09/05/2013] [Indexed: 01/09/2023]
Abstract
BACKGROUND The let-7 family plays a vital role in the normal cellular activity of liver cells and the carcinogenesis of hepatocellular carcinoma (HCC). In the previous study, we have detected the association between single nucleotide polymorphisms (SNPs) in the promoter region of let-7 and susceptibility to HCC. However, it is still unknown whether these polymorphisms are associated with HCC prognosis. METHODS We investigated the effect of two potentially functional SNPs in the promoter region of let-7 family, rs10877887 (T>C) and rs13293512 (T>C), on the overall survival of 331 HCC patients. Log-rank test and Cox proportional hazard models were used for the survival analyses. RESULTS We found that HCC patients carrying the C allele of rs10877887 had a significantly increased death risk (adjusted HR=1.22, 95%CI=1.02-1.47, P=0.03 in the additive model), compared to those with T allele. In the stratified analysis, the risk effect was evident in HCC patients with Barcelona Clinic Liver Cancer (BCLC) stage B (adjusted HR=1.24, 95%CI=1.02-1.51, P=0.03) and in those who received chemotherapy or intervention (adjusted HR=1.25, 95%CI=1.02-1.53, P=0.04). CONCLUSIONS Our results suggest that rs10877887 in the promoter region of let-7 may be a prognostic biomarker for HCC patients, which need the validation from other larger studies in different populations.
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Khare S, Zhang Q, Ibdah JA. Epigenetics of hepatocellular carcinoma: Role of microRNA. World J Gastroenterol 2013; 19:5439-5445. [PMID: 24023486 PMCID: PMC3761096 DOI: 10.3748/wjg.v19.i33.5439] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/03/2013] [Accepted: 07/19/2013] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) represents a major form of primary liver cancer in adults. MicroRNAs (miRs), small non-coding single-stranded RNAs of 19-24 nucleotides in length, negatively regulate the expression of many target genes at the post-transcriptional and/or translational levels and play a critical role in the initiation and progression of HCC. In this review we have summarized the information of aberrantly expressed miRs in HCC, their mechanism of action and relationship to cancer. The recent advances in HCC research reveal that miRs regulate expression of various oncogenes and tumor suppressor genes, thereby contributing to the modulation of diverse biological processes including proliferation, apoptosis, epithelial to mesenchymal transition and metastasis. From a clinical viewpoint, polymorphisms within miR-binding sites are associated with the risk of HCC. Polymorphisms in miR related genes have been shown to correlate with survival or treatment outcome in patients. Furthermore, the review focuses on the potential role of miRs as novel biomarkers and their translational applications for diagnosis and therapy in HCC. With further insights into miR deregulation in HCC, it is expected that novel miR-based therapeutics will arise. Also, we orient the readers to other reviews that may provide better understanding of miR research in HCC.
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Association of interferon-gamma induced protein 10 promoter polymorphisms with the disease progression of hepatitis B virus infection in Chinese Han population. PLoS One 2013; 8:e72799. [PMID: 24023775 PMCID: PMC3762918 DOI: 10.1371/journal.pone.0072799] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Accepted: 07/12/2013] [Indexed: 02/07/2023] Open
Abstract
Background and Aims Interferon-gamma induced protein 10 (IP-10) was suggested to be involved in liver injury in viral hepatitis. This study aimed to investigate the impact of the single nucleotide polymorphisms (SNP) G-201A (rs1439490) in IP-10 gene on disease progression of hepatitis B virus (HBV) infection. Methods The -201 SNP in IP-10 promoter was genotyped from 577 patients with different illness categories and 275 health controls; In vitro IP-10 promoter activity was compared between haplotype GG and AA homozygotes using luciferase reporter system in HepG2 cells. In vivo expression of IP-10 was compared between patients with -201 AA genotype and GG genotype. Results The detected frequency of G-201A SNP was 17.8%, 25.3%, 26.6%, and 13.8% for patients with acute hepatitis B (AHB), patients with mild chronic hepatitis B (CHB-M), patients with severe chronic hepatitis B (CHB-S), and health controls, respectively. In vitro IP-10 promoter-driven luciferase activity in pGL3-Enhancer-201A transfected HepG2 cells was 1.43-fold higher than that in pGL3-Enhancer-201G transfected HepG2 cells (P<0.01). In vivo IP-10 transcriptional expression of peripheral blood mononuclear cells was 1.38-fold higher in patients with -201 AA genotype than in patients with -201 GG genotype (P<0.01). Conclusion G-201A in promoter region of IP-10 gene was associated with liver disease progression in patients with HBV infection through up-regulating IP-10 expression.
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Xu C, Zhou W, Wang Y, Qiao L. Hepatitis B virus-induced hepatocellular carcinoma. Cancer Lett 2013; 345:216-22. [PMID: 23981576 DOI: 10.1016/j.canlet.2013.08.035] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/10/2013] [Accepted: 08/18/2013] [Indexed: 12/12/2022]
Abstract
Many factors are considered to contribute to hepatitis B virus (HBV) associated hepatocellular carcinoma (HCC), including products of HBV, HBV integration and mutation, and host susceptibility. HBV X protein (HBx) can interfere with several signal pathways that associated with cell proliferation and apoptosis, and the impact of HBx C-terminal truncation in the development of HCC has been implicated. Recent studies by advanced sequencing technologies have revealed recurrent HBV DNA integration sites in hepatoma cells and susceptible genes/SNPs play an important role in the pathogenesis of liver cancer. Epigenetic changes, immune and inflammatory factors are also important contributing factors for liver cancer. This mini-review provides an overview on the recent development of HBV induced HCC.
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Affiliation(s)
- Cheng Xu
- Institute for Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Wence Zhou
- The Department of General Surgery II, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Yuming Wang
- Institute for Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
| | - Liang Qiao
- Storr Liver Unit, University of Sydney, Westmead Millennium Institute, Westmead Hospital, Westmead, NSW 2145, Australia.
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Abstract
The hepatitis B virus (HBV) plays a dominant role in the 749,000 new cases and 692,000 deaths related to hepatocellular carcinoma (HCC) that are estimated to occur each year worldwide. Chronic infection with HBV is responsible for 60% of HCCs in Asia and Africa and at least 20% of the tumors in Europe, Japan, and the United States. This article discusses the pathogenic role of HBV and the risk of HCC. Tumors almost invariably develop in the context of chronic hepatitis or cirrhosis, which makes early diagnosis the only practical approach to improve prognosis. The treatment options are also discussed.
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Affiliation(s)
- Massimo Iavarone
- 1st Division of Gastroenterology, A.M. & A. Migliavacca Center for Liver Disease, Fondazione IRCCS Ca' Granda Maggiore Hospital, Università degli Studi di Milano, Via F. Sforza 35, Milan 20122, Italy
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Liu L, Liu Y, Liu J, Zhai X, Wen J, Xie K, Shen H, Hu Z, Fan Z. Genetic variants in pseudogene E2F3P1 confer risk for HBV-related hepatocellular carcinoma in a Chinese population. J Biomed Res 2013; 27:215-9. [PMID: 23720677 PMCID: PMC3664728 DOI: 10.7555/jbr.27.20130019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 03/05/2013] [Accepted: 04/12/2013] [Indexed: 12/11/2022] Open
Abstract
Recent studies showed that pseudogenes can regulate the expression of their coding gene partners by competing for miRNAs. The E2F family plays a crucial role in the control of cell cycle checkpoint. E2F3P1 is a pseudogene of E2F3. Few studies focused on genetic variations on pseudogenes. In this study, we performed a case-control study to assess the association between single nucleotide polymorphisms (SNPs) in E2F3P1 and hepatocellular carcinoma (HCC) risk in 1050 hepatitis B virus (HBV)-positive HCC cases and 1050 chronic HBV carriers. Logistic regression analysis was applied to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the associations between genotypes and HCC risk. We found that the variant CT/TT genotypes of rs1838149 were associated with a significantly decreased risk of HCC (adjusted OR = 0.66, 95% CIs = 0.51-0.86, P = 0.002) compared to those with wildtype CC homozygote. Furthermore, the AA genotype of rs9909601 had an increased HCC risk with an adjusted OR of 1.41 (95% CIs = 1.07-1.86), and the A allele of rs9909601 was significantly associated with HCC risk compared to those with the G allele (adjusted OR = 1.17, 95% CIs = 1.03-1.33, P = 0.017). These results indicate that genetic variations in the pseudogene E2F3P1 may confer HCC risk.
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Affiliation(s)
- Li Liu
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, the Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210011, China; ; Department of Hepatobiliary Surgery, Nantong Tumor Hospital, Nantong, Nantong, Jiangsu 226361, China
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Li F, Liu J, Li S. MicorRNA 106b ∼ 25 cluster and gastric cancer. Surg Oncol 2013; 22:e7-10. [PMID: 23510949 DOI: 10.1016/j.suronc.2013.01.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/15/2013] [Accepted: 01/22/2013] [Indexed: 12/19/2022]
Abstract
Conventional strategies for the early diagnosis and treatment of gastric cancer are not yet satisfactory, and it calls for better diagnosis and treatments based on a deeper understanding of the molecular mechanisms. It has been revealed that the number of verified human microRNA (miRNA) expression contribute to the initiation and progression of cancer. Among them, miR-106b ∼ 25 cluster is of particular interest. The miRNA-106b ∼ 25 cluster is composed of the highly conserved miRNA-106b, miRNA-93 and miRNA-25. The miRNA-106b ∼ 25 polycistron exerted potential proliferative, anti-apoptotic and cell cycle-promoting effects on cancer cells. Over-expression of the miRNA-106b ∼ 25 cluster is known to overcome TGF-beta mediated growth suppression via targeting p21 and Bim. This cluster can additionally target the inhibitory Smad7 protein and increase TGF-beta RI which is sufficient to induce epithelial-to-mesenchymal transition (EMT). MiRNA-93 can promote angiogenesis. The tumor suppressor genes RB and PTEN are the direct targets of miRNA-106b ∼ 25. Especially, miRNA-106b ∼ 25 clusters play an important role in oncogenesis of gastric cancer. Focus on the essential role in tumorgenisis and extremely low expression of miRNA-106b ∼ 25 in normal tissues, it maybe an appropriate target of gastric cancer treatment and a novel biomarkers for detecting gastric cancer.
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Affiliation(s)
- Fangxuan Li
- Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Huanhuxi Road, Hexi District, Tianjin 300060, China
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