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Gao H, Wang X, Ma H, Lin S, Zhang D, Wu W, Liao Z, Chen M, Li Q, Lin M, Li D. METTL16 regulates m6A methylation on chronic hepatitis B associated gene HLA-DPB1 involved in liver fibrosis. Front Genet 2022; 13:996245. [PMID: 36406135 PMCID: PMC9672369 DOI: 10.3389/fgene.2022.996245] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
The role of genetic factors in the occurrence and progression of CHB (CHB) is still not fully explored. In recent years, genome-wide association studies on CHB patients have demonstrated that a large number of CHB-associated single nucleotide polymorphisms exist in the gene intron, which may regulate expression at the transcriptional level. Modification of RNA m6A methylation is one of the key mechanisms regulating gene expression. Here we show that METTL16, an m6A regulator involved in mRNA intron splicing, is differentially expressed in CHB the tissue of patients who has definite diagnosis of mild and severe fibrosis. At the same time, there are also significant differences in the expression of CHB-associated genes such as HLA-DPA1 and HLA-DPB1. The expression of HLA-DPB1 is related to METTL16. Furthermore, analyses of RNA binding of METTL16 and HLA-DPB1 show that the silencing of METTL16 in astrocytes downregulates m6A and expression of HLA-DPB1. In conclusion, METTL16 participates in the progression of CHB fibrosis by regulating the m6A level and expression of HLA-DPB1.
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Affiliation(s)
- Haibing Gao
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
- Fuzong Clinical Medical College of Fujian Medical University, Fujian, China
| | - Xiangmei Wang
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Huaxi Ma
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Shenglong Lin
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Dongqing Zhang
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Wenjun Wu
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Ziyuan Liao
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Mengyun Chen
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
- Fuzong Clinical Medical College of Fujian Medical University, Fujian, China
| | - Qin Li
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
| | - Minghua Lin
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fujian, China
- *Correspondence: Dongliang Li, ; Minghua Lin,
| | - Dongliang Li
- Fuzong Clinical Medical College of Fujian Medical University, Fujian, China
- 900th Hospital of Joint Logistics Support Forces of the Chinese PLA, Fujian, China
- *Correspondence: Dongliang Li, ; Minghua Lin,
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Ou G, Liu X, Jiang Y. HLA-DPB1 alleles in hepatitis B vaccine response: A meta-analysis. Medicine (Baltimore) 2021; 100:e24904. [PMID: 33832070 PMCID: PMC8036076 DOI: 10.1097/md.0000000000024904] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 01/31/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The role of the HLA-DRB1 and HLA-DQB1 genes in the antibody response to hepatitis B (HB) vaccine has been well established; however, the involvement of the HLA-DPB1 allele in the HB vaccine immune response remained to be clarified by a systematic review. METHODS A meta-analysis was performed in which databases were searched for relevant studies published in English or Chinese up until June 1, 2020. Six studies were identified and a total of 10 alleles were processed into statistical processing in this meta-analysis. RESULTS Three thousand one hundred forty four subjects (including 2477 responders and 667 non-responders) were included in this research. Alleles HLA-DPB1∗02:02, DPB1∗03:01, DPB1∗04:01, DPB1∗04:02, and DPB1∗14:01 were found to be associated with a significant increase in the antibody response to HB vaccine, and their pooled odds ratios (ORs) were 4.53, 1.57, 3.33, 4.20, and 1.79, respectively; whereas DPB1∗05:01 (OR = 0.73) showed the opposite correlation. CONCLUSIONS These findings suggested that specific HLA-DPB1 alleles are associated with the antibody response to HB vaccine.
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Affiliation(s)
- Guojin Ou
- Department of Laboratory Medicine, West China Second University Hospital, Chengdu, Sichuan
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China
| | - Xiaojuan Liu
- Department of Laboratory Medicine, West China Second University Hospital, Chengdu, Sichuan
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Chengdu, Sichuan
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China
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Chen HL, Zha ML, Cai JY, Qin G. Maternal viral load and hepatitis B virus mother-to-child transmission risk: A systematic review and meta-analysis. Hepatol Res 2018; 48:788-801. [PMID: 29473269 DOI: 10.1111/hepr.13072] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 02/10/2018] [Accepted: 02/17/2018] [Indexed: 01/20/2023]
Abstract
AIM The aim of this study was to assess the relationship between maternal viral load and mother-to-child transmission (MTCT) risk in hepatitis B envelope antigen (HBeAg)-positive mothers. METHODS PubMed and Web of Science were systematically searched. We compared MTCT incidence between maternal hepatitis B virus (HBV)-DNA-positive and HBV-DNA-negative groups. We also examined the dose-response effect of this relationship. RESULTS Twenty-one studies with 10 142 mother-child pairs were included in the studies. The mean MTCT incidence was 13.1% in the maternal HBV-DNA-positive group, compared with 4.2% in the negative group. The summary MTCT odds ratio of maternal HBV-DNA positive compared with negative was 9.895 (95% confidence interval [CI], 5.333 to 18.359; Z = 7.27, P < 0.00001) by random-effects model. In maternal HBV-DNA <6 log10 copies/mL, 6-8 log10 copies/mL, and >8 log10 copies/mL level stratifications, the pooled MTCT incidences were 2.754% (95% CI, 1.198-4.310%; Z = 3.47, P = 0.001), 9.932% (95% CI, 6.349-13.516%; Z = 5.43, P < 0.00001), and 14.445% (95% CI, 8.317-20.572%; Z = 4.62, P < 0.00001), respectively. A significant linear dose-response association was found between maternal viral load and MTCT risk, with the points estimate of increased MTCT risk 2.705 (95% CI, 1.808-4.047) at 6 log10 copies/mL compared with reference (3 log10 copies/mL), and 7.316 (95% CI, 3.268-16.378) at 9 log10 copies/mL. A significant non-linear dose-response association was also found between maternal viral load and HBV MTCT risk (model χ2 = 23.43, P < 0.00001). CONCLUSION Our meta-analysis indicated that maternal viral load was an important risk factor for MTCT in HBeAg-positive mothers, and maternal viral load was dose-dependent with HBV MTCT incidence.
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Affiliation(s)
- Hong-Lin Chen
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Man-Li Zha
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Ji-Yu Cai
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Gang Qin
- Center for Liver Diseases, Nantong Third People's Hospital, Nantong City, Jiangsu Province, China
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Akcay IM, Katrinli S, Ozdil K, Doganay GD, Doganay L. Host genetic factors affecting hepatitis B infection outcomes: Insights from genome-wide association studies. World J Gastroenterol 2018; 24:3347-3360. [PMID: 30122875 PMCID: PMC6092584 DOI: 10.3748/wjg.v24.i30.3347] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/29/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023] Open
Abstract
The clinical outcome of Hepatitis B Virus (HBV) infection depends on the success or failure of the immune responses to HBV, and varies widely among individuals, ranging from asymptomatic self-limited infection, inactive carrier state, chronic hepatitis, cirrhosis, hepatocellular carcinoma, to liver failure. Genome-wide association studies (GWAS) identified key genetic factors influencing the pathogenesis of HBV-related traits. In this review, we discuss GWAS for persistence of HBV infection, antibody response to hepatitis B vaccine, and HBV-related advanced liver diseases. HBV persistence is associated with multiple genes with diverse roles in immune mechanisms. The strongest associations are found within the classical human leukocyte antigen (HLA) genes, highlighting the central role of antigen presentation in the immune response to HBV. Associated variants affect both epitope binding specificities and expression levels of HLA molecules. Several other susceptibility genes regulate the magnitude of adaptive immune responses, determining immunity vs tolerance. HBV persistence and nonresponse to vaccine share the same risk variants, implying overlapping genetic bases. On the other hand, the risk variants for HBV-related advanced liver diseases are largely different, suggesting different host-virus dynamics in acute vs chronic HBV infections. The findings of these GWAS are likely to pave the way for developing more effective preventive and therapeutic interventions by personalizing the management of HBV infection.
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Affiliation(s)
- Izzet Mehmet Akcay
- Department of Molecular Biology and Genetics, Istanbul Technical University, Istanbul 34469, Turkey
| | - Seyma Katrinli
- Department of Molecular Biology and Genetics, Istanbul Technical University, Istanbul 34469, Turkey
| | - Kamil Ozdil
- Department of Gastroenterology and Hepatology, Umraniye Teaching and Research Hospital, Istanbul 34764, Turkey
| | - Gizem Dinler Doganay
- Department of Molecular Biology and Genetics, Istanbul Technical University, Istanbul 34469, Turkey
| | - Levent Doganay
- Department of Gastroenterology and Hepatology, Umraniye Teaching and Research Hospital, Istanbul 34764, Turkey
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Akgöllü E, Bilgin R, Akkız H, Ülger Y, Kaya BY, Karaoğullarından Ü, Arslan YK. Association between chronic hepatitis B virus infection and HLA-DP gene polymorphisms in the Turkish population. Virus Res 2017; 232:6-12. [PMID: 28119119 DOI: 10.1016/j.virusres.2017.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/17/2017] [Accepted: 01/17/2017] [Indexed: 12/23/2022]
Abstract
AIM Hepatitis B virus (HBV) affects approximately 360 million people worldwide. 10-15% of patients with chronic HBV develop liver cirrhosis (LC), liver failure and hepatocellular carcinoma (HCC). Chronic HBV infection or HBV clearance is influenced by both viral and host factors. In genome-wide association studies (GWAS), the human leukocyte antigen (HLA) gene polymorphisms rs3077 and rs9277535 were identified to be associated with chronic hepatitis B. HLA genes have been linked to immune response to infectious agents. Genetic variants in HLA genes influence HLA mRNA expression which might also affect antigen presentation. We evaluated the association between HLA gene polymorphisms and the risk for persistent HBV infection. METHODS In the current study, HLA gene polymorphisms were investigated in a case-control study of 294 chronic HBV patients and 234 persons with HBV natural clearance by using a real-time polymerase chain reaction (RT-PCR). RESULTS The results showed that rs9277535 allele frequency is associated with HBV infection in the Turkish subjects examined (P=0.048). However, no association was found for rs3077. Additionally, the AG haplotype block showed a protective effect against the risk of persistent HBV infection (for the rs3077A/rs9277535G, OR=0.52; 95% 0.34-0.80, P=0.003). CONCLUSIONS Our results, for the first time, demonstrate that HLA-DPB1 gene rs9277535A allele has a major effect on the risk of persistent HBV infection. We suggest that further independent studies are necessary to clarify the association of these polymorphisms with persistence or natural clearance of HBV infection in Caucasian populations.
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Affiliation(s)
- Ersin Akgöllü
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey.
| | - Ramazan Bilgin
- Department of Chemistry, Arts and Science Faculty, Çukurova University, Adana, Turkey.
| | - Hikmet Akkız
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey.
| | - Yakup Ülger
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey.
| | - Berrin Yalınbaş Kaya
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey.
| | - Ümit Karaoğullarından
- Çukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey.
| | - Yusuf Kemal Arslan
- Çukurova University, Faculty of Medicine, Department of Biostatistics, Adana, Turkey.
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Clinical Relevance of HLA Gene Variants in HBV Infection. J Immunol Res 2016; 2016:9069375. [PMID: 27243039 PMCID: PMC4875979 DOI: 10.1155/2016/9069375] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 04/14/2016] [Indexed: 01/01/2023] Open
Abstract
Host gene variants may influence the natural history of hepatitis B virus (HBV) infection. The human leukocyte antigen (HLA) system, the major histocompatibility complex (MHC) in humans, is one of the most important host factors that are correlated with the clinical course of HBV infection. Genome-wide association studies (GWASs) have shown that single nucleotide polymorphisms (SNPs) near certain HLA gene loci are strongly associated with not only persistent HBV infection but also spontaneous HBV clearance and seroconversion, disease progression, and the development of liver cirrhosis and HBV-related hepatocellular carcinoma (HCC) in chronic hepatitis B (CHB). These variations also influence the efficacy of interferon (IFN) and nucleot(s)ide analogue (NA) treatment and response to HBV vaccines. Meanwhile, discrepant conclusions were reached with different patient cohorts. It is therefore essential to identify the associations of specific HLA allele variants with disease progression and viral clearance in chronic HBV infection among different ethnic populations. A better understanding of HLA polymorphism relevance in HBV infection outcome would enable us to elucidate the roles of HLA SNPs in the pathogenesis and clearance of HBV in different areas and ethnic groups, to improve strategies for the prevention and treatment of chronic HBV infection.
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Wasityastuti W, Yano Y, Ratnasari N, Triyono T, Triwikatmani C, Indrarti F, Heriyanto DS, Yamani LN, Liang Y, Utsumi T, Hayashi Y. Protective effects of HLA-DPA1/DPB1 variants against Hepatitis B virus infection in an Indonesian population. INFECTION GENETICS AND EVOLUTION 2016; 41:177-184. [PMID: 27051043 DOI: 10.1016/j.meegid.2016.03.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 03/07/2016] [Accepted: 03/30/2016] [Indexed: 01/01/2023]
Abstract
Human leukocyte antigen (HLA) DPA1/DPB1 variants have been reported to influence Hepatitis B virus (HBV) infection. HLA-DPA1/DPB1 plays a pivotal role in antigen presentation to CD4(+) helper T cells and influences the outcome of HBV infection. To investigate the influence of HLA-DP variants on the outcome of HBV infection in an Indonesian population where it has the third-highest prevalence of HBV infection worldwide, we performed a case-control study of 686 participants, including patients with HBV-related advanced or nonadvanced liver disease, patients with spontaneously resolved HBV, and healthy controls. Single-nucleotide polymorphisms in HLA-DPA1 (rs3077) and HLA-DPB1 (rs3135021, rs9277535, and rs228388) were genotyped using real-time TaqMan® genotyping assays. Because rs2281388 deviated from Hardy-Weinberg equilibrium, it was excluded from subsequent analyses. The results of logistic regression analyses showed that the HLA-DPB1 rs9277535 variants were associated with a reduced risk of persistent HBV infection (odds ratio [OR] 0.70, 95% confidence interval [95% CI] 0.52-0.96, P=0.026, additive genetic model; OR 0.60, 95% CI 0.38-0.96, P=0.033, dominant genetic model). The HLA-DPA1 rs3077 variant was associated with a protective effect increasing the spontaneously resolved HBV infection (OR 0.64, 95% CI 0.41-0.98, P=0.039, dominant genetic model). By contrast, the HLA-DPB1 rs3135021 variant was not associated with the outcome of HBV infection, including susceptibility, spontaneously resolved, or disease progression. Combinations of haplotype markers were also associated with HBV susceptibility (CA for rs3077-rs9277535, OR 0.57, 95% CI 0.36-0.92, P=0.021; GA for rs3135021-rs9277535, OR 0.56, 95% CI 0.36-0.86, P=0.0087). In conclusion, these findings confirm that HLA-DPA1/DPB1 variants were associated with the outcomes of HBV infection in an Indonesian population.
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Affiliation(s)
- Widya Wasityastuti
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Division of Infectious Disease Pathology, Department of Microbiology and Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Department of Physiology, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Yoshihiko Yano
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.
| | - Neneng Ratnasari
- Subdivision of Gastroenterohepatology, Department of Internal Medicine, Dr. Sardjito Hospital, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Teguh Triyono
- Department of Clinical Pathology, Dr. Sardjito Hospital, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Catharina Triwikatmani
- Subdivision of Gastroenterohepatology, Department of Internal Medicine, Dr. Sardjito Hospital, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Fahmi Indrarti
- Subdivision of Gastroenterohepatology, Department of Internal Medicine, Dr. Sardjito Hospital, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Didik Setyo Heriyanto
- Department of Anatomical Pathology, Dr. Sardjito Hospital, Faculty of Medicine, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Laura Navika Yamani
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Division of Infectious Disease Pathology, Department of Microbiology and Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Yujiao Liang
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Division of Infectious Disease Pathology, Department of Microbiology and Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Takako Utsumi
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Indonesia-Japan Collaborative Research Centre for Emerging and Re-emerging Infectious Disease, Institute of Tropical Disease, Airlangga University, Surabaya 60115, Indonesia
| | - Yoshitake Hayashi
- Division of Molecular Medicine & Medical Genetics, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; Division of Infectious Disease Pathology, Department of Microbiology and Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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Quantitative assessment of common genetic variations in HLA-DP with hepatitis B virus infection, clearance and hepatocellular carcinoma development. Sci Rep 2015; 5:14933. [PMID: 26462556 PMCID: PMC4604517 DOI: 10.1038/srep14933] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 09/11/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) infection is the predominant risk factor for chronic hepatitis B (CHB), liver cirrhosis (LC) and hepatocellular carcinoma (HCC). Recently, genome-wide association studies have identified human leukocyte antigen (HLA)-DP polymorphisms (rs3077 and rs9277535) as a new chronic HBV infection susceptibility locus. Since then, the relationship between HLA-DP polymorphisms and various outcomes of HBV infection has been reported. However, the results have been inconclusive. To derive a more precise estimation of the relationship between HLA-DP polymorphisms and various outcomes of HBV infection, a meta-analysis of 62,050 subjects from 29 case-control studies was performed. We found that rs3077 and rs9277535 in HLA-DP significantly decreased HBV infection risks and increased HBV clearance possibility in a dose-dependent manner. In the subgroup analysis by ethnicity, study design and sample size, significant associations were found for these polymorphisms in almost all comparisons. Meanwhile, haplotype analyses of the two polymorphisms revealed a significant association between the combination of these alleles and HBV infection outcomes. However, no significant results were observed in HCC development. Our results further confirm that genetic variants in the HLA-DP locus are strongly associated with reduced HBV infection and increased the likelihood of spontaneous viral clearance.
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Al-Qahtani AA, Al-Anazi MR, Abdo AA, Sanai FM, Al-Hamoudi W, Alswat KA, Al-Ashgar HI, Khalaf NZ, Eldali AM, Viswan NA, Al-Ahdal MN. Association between HLA variations and chronic hepatitis B virus infection in Saudi Arabian patients. PLoS One 2014; 9:e80445. [PMID: 24465366 PMCID: PMC3898905 DOI: 10.1371/journal.pone.0080445] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 10/02/2013] [Indexed: 12/29/2022] Open
Abstract
Hepatitis B virus (HBV) infection is a leading cause of liver diseases including cirrhosis and hepatocellular carcinoma. Human leukocyte antigens (HLAs) play an important role in the regulation of immune response against infectious organisms, including HBV. Recently, several genome-wide association (GWAS) studies have shown that genetic variations in HLA genes influence disease progression in HBV infection. The aim of this study was to investigate the role of HLA genetic polymorphisms and their possible role in HBV infection in Saudi Arabian patients. Variations in HLA genes were screened in 1672 subjects who were divided according to their clinical status into six categories as follows; clearance group, inactive carriers, active carriers, cirrhosis, hepatocellular carcinoma (HCC) patients and uninfected healthy controls. Three single nucleotide polymorphisms (SNPs) belonged to HLA-DQ region (rs2856718, rs7453920 and rs9275572) and two SNPs belonged to HLA-DP (rs3077 and rs9277535) were studied. The SNPs were genotyped by PCR-based DNA sequencing (rs2856718) and allele specific TaqMan genotyping assays (rs3077, rs7453920, rs9277535 and rs9275572). The results showed that rs2856718, rs3077, rs9277535 and rs9275572 were associated with HBV infection (p = 0.0003, OR = 1.351, CI = 1.147–1.591; p = 0.041, OR = 1.20, CI = 1.007–1.43; p = 0.045, OR = 1.198, CI = 1.004–1.43 and p = 0.0018, OR = 0.776, CI = 0.662–0.910, respectively). However, allele frequency of rs2856718, rs7453920 and rs9275572 were found more in chronically infected patients when compared to clearance group infection (p = 0.0001, OR = 1.462, CI = 1.204–1.776; p = 0.0178, OR = 1.267, CI = 1.042–1.540 and p = 0.010, OR = 0.776, CI = 0.639–0.942, respectively). No association was found when polymorphisms in HLA genes were compared in active carriers versus cirrhosis/HCC patients. In conclusion, these results suggest that variations in HLA genes could affect susceptibility to and clearance of HBV infection in Saudi Arabian patients.
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Affiliation(s)
- Ahmed A. Al-Qahtani
- Department of Infection and Immunity, Research Center, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Mashael R. Al-Anazi
- Department of Infection and Immunity, Research Center, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Ayman A. Abdo
- Section of Gastroenterology, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Faisal M. Sanai
- Hepatobiliary Sciences and Liver Transplantation, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Waleed Al-Hamoudi
- Section of Gastroenterology, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Khalid A. Alswat
- Section of Gastroenterology, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Hamad I. Al-Ashgar
- Department of Medicine, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Nisreen Z. Khalaf
- Department of Infection and Immunity, Research Center, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Abdelmoneim M. Eldali
- Department of Biostatistics, Epidemiology & Scientific Computing, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Nisha A. Viswan
- Department of Infection and Immunity, Research Center, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Mohammed N. Al-Ahdal
- Department of Infection and Immunity, Research Center, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
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Zhang S, Wang F, Wang H, Zhang F, Xu B, Li X, Wang Y. Genome-wide identification of allele-specific effects on gene expression for single and multiple individuals. Gene 2014; 533:366-73. [DOI: 10.1016/j.gene.2013.09.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 09/08/2013] [Indexed: 01/29/2023]
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11
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Zhang XL, Ni XC, Jia JH, Dong JH, Yu FX, Ma N, Liu XH, Li M, Liu DW. Association of the rs3077 and rs9277535 polymorphisms in HLA-DP with hepatitis B virus infection and spontaneous clearance: a meta-analysis. Scand J Gastroenterol 2013; 48:736-44. [PMID: 23601003 DOI: 10.3109/00365521.2013.787643] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE Owing to inconsistent observations in the literature of an association between HLA-DP polymorphisms (rs3077 and rs9277535) and hepatitis B virus (HBV) infection and spontaneous clearance, there is an urgent need for a comprehensive and reliable understanding of this subject. This meta-analysis was performed to quantitatively summarise the evidence for the relevance of these HLA-DP polymorphisms to HBV infection and spontaneous clearance. METHODS A meta-analysis was conducted with the data from eight relevant papers published from April 2009 to March 2012, following strict selection. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated for alleles, co-dominant, dominant and recessive genotype models of the rs3077 and rs9277535 loci. RESULTS Our analysis indicated a significant association of rs3077 and rs9277535 in HLA-DP with HBV infection, suggesting that these HLA-DP polymorphisms act beneficially against HBV infection (for rs3077, AG vs. GG: OR = 0.522, 95% CI = 0.485-0.561; AA vs. GG: OR = 0.350, 95% CI = 0.311-0.393; for rs9277535, AG vs. GG: OR = 0.542, 95% CI = 0.506-0.579; AA vs. GG: OR = 0.371, 95% CI = 0.336-0.409). Additionally, these HLA-DP polymorphisms served as protective factors in the spontaneous clearance of HBV (for rs3077, AG vs. GG: OR = 0.600, 95% CI = 0.464-0.775; AA vs. GG: OR = 0.420, 95% CI = 0.299-0.590; for rs9277535, AG vs. GG: OR = 0.623, 95% CI = 0.570-0.681 and AA vs. GG: OR = 0.464, 95% CI = 0.386-0.556) with similar results for both dominant and recessive genotype models. CONCLUSIONS Our results demonstrated that the rs3077 and rs9277535 HLA-DP polymorphisms reduced HBV infection and increased the likelihood of spontaneous viral clearance in some Asian populations.
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Affiliation(s)
- Xiao-Lin Zhang
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Zhongshan East Road 361#, Shi Jiazhuang 050017, China
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Hu L, Zhai X, Liu J, Chu M, Pan S, Jiang J, Zhang Y, Wang H, Chen J, Shen H, Hu Z. Genetic variants in human leukocyte antigen/DP-DQ influence both hepatitis B virus clearance and hepatocellular carcinoma development. Hepatology 2012; 55:1426-31. [PMID: 22105689 DOI: 10.1002/hep.24799] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 11/02/2011] [Indexed: 12/17/2022]
Abstract
Recent genome-wide association studies showed that four single-nucleotide polymorphisms (SNPs) in human leukocyte antigen (HLA)-DP (rs3077 and rs9277535) and HLA-DQ (rs2856718 and rs7453920) were associated with chronic hepatitis B virus (HBV) infection in Japanese populations. More than 75% of hepatocellular carcinoma (HCC) patients are attributable to persistent infection of hepatitis B virus (HBV), especially in China. We genotyped these four SNPs in 1,300 HBV-positive HCC patients, 1,344 persistent HBV carriers, and 1,344 persons with HBV natural clearance from Southeast China to further test the associations of HLA-DP/DQ variants and with risk of both HBV clearance and HCC development. Logistic regression analyses showed that HLA-DQ rs2856718 significantly decreased host HCC risk, whereas three SNPs were associated with HBV clearance (HLA-DP rs9277535 as well as HLA-DQ rs7453920 and rs2856718). In addition, HLA-DP rs3077 showed an approaching significant effect on susceptibility to HBV persistent infection and HCC development when considering multiple testing adjustments. Taken together, we report, for the first time, that genetic variants in the HLA-DP and HLA-DQ loci may be marker SNPs for risk of both HBV clearance and HCC development.
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Affiliation(s)
- Lingmin Hu
- Department of Epidemiology and Biostatistics, MOE Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
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Yan Z, Tan S, Dan Y, Sun X, Deng G, Wang Y. Relationship between HLA-DP gene polymorphisms and clearance of chronic hepatitis B virus infections: case-control study and meta-analysis. INFECTION GENETICS AND EVOLUTION 2012; 12:1222-8. [PMID: 22543033 DOI: 10.1016/j.meegid.2012.03.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 03/28/2012] [Accepted: 03/29/2012] [Indexed: 01/02/2023]
Abstract
Hepatitis B virus (HBV) infection is a serious public health problem worldwide. Two common genetic variants (rs3077 and rs9277535) of human leukocyte antigen DP (HLA-DP) have been reported to be associated with persistent HBV infection in populations of Japan and Thailand. To confirm whether the association can be replicated in Chinese populations, an independent case-control study were conducted, and two polymorphisms (rs3077 and rs9277535) were genotyped using the TaqMan SNP genotyping assay in 282 persistent chronic HBV carriers and 64 spontaneously HBV recovered carriers. To provide a more definitive conclusion, a meta-analysis combining and summarizing five studies was performed by random-effects model using the DerSimonian and Laird's method. By using logistic regression analysis with adjustment for covariates, including age, sex, and alcohol consumption, the results of our independent case-control study showed that the minor allele's homozygote (AA genotype) of rs3077 and rs9277535 was significantly associated with decreasing risk/protection of HBV persistent chronic infection (for rs3077: P=0.0017, OR=0.29, 95% CI=0.13-0.62; for rs9277535, P=0.0004, OR=0.26, 95% CI=0.12-0.54). The results of meta-analysis pooling all eligible studies also showed that rs3077-A and rs9277535-A alleles were associated with an increased clearance rate to HBV infection (rs3077: OR=0.57, 95% CI=0.44-0.75; rs9277535: OR=0.56, 95% CI=0.47-0.63). These results further confirmed the strong influence of HLA-DP gene variants on risk of spontaneous HBV clearance from persistent HBV infection. Both A alleles of HLA-DP SNP rs3077 and rs9277535 showed strong protective effects for spontaneous HBV clearance from persistent HBV infection in the Han Chinese population.
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Affiliation(s)
- Zehui Yan
- Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, 30 Gao Tan Yan Street, Sha Ping Ba District, Chongqing 400038, PR China
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