PMID- 28119119 OWN - NLM STAT- MEDLINE DCOM- 20171222 LR - 20220317 IS - 1872-7492 (Electronic) IS - 0168-1702 (Linking) VI - 232 DP - 2017 Mar 15 TI - Association between chronic hepatitis B virus infection and HLA-DP gene polymorphisms in the Turkish population. PG - 6-12 LID - S0168-1702(16)30720-1 [pii] LID - 10.1016/j.virusres.2017.01.017 [doi] AB - 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. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Akgollu, Ersin AU - Akgollu E AD - Cukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey. Electronic address: ersin0571@gmail.com. FAU - Bilgin, Ramazan AU - Bilgin R AD - Department of Chemistry, Arts and Science Faculty, Cukurova University, Adana, Turkey. Electronic address: rbilgin@cu.edu.tr. FAU - Akkiz, Hikmet AU - Akkiz H AD - Cukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey. Electronic address: hakkiz@superonline.com. FAU - Ulger, Yakup AU - Ulger Y AD - Cukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey. Electronic address: yakup73us@yahoo.com. FAU - Kaya, Berrin Yalinbas AU - Kaya BY AD - Cukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey. Electronic address: berrinyalinbaskaya@hotmail.com. FAU - Karaogullarindan, Umit AU - Karaogullarindan U AD - Cukurova University, Faculty of Medicine, Department of Gastroenterology, Adana, Turkey. Electronic address: umit2462@hotmail.com. FAU - Arslan, Yusuf Kemal AU - Arslan YK AD - Cukurova University, Faculty of Medicine, Department of Biostatistics, Adana, Turkey. Electronic address: ykarslan@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170122 PL - Netherlands TA - Virus Res JT - Virus research JID - 8410979 RN - 0 (HLA-DP beta-Chains) RN - 0 (HLA-DPB1 antigen) RN - 0 (Hepatitis B Core Antigens) RN - 0 (Hepatitis B Surface Antigens) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Alleles MH - Case-Control Studies MH - Female MH - Gene Expression MH - Gene Frequency MH - *Genetic Predisposition to Disease MH - Genome-Wide Association Study MH - HLA-DP beta-Chains/*genetics/immunology MH - Hepatitis B Core Antigens/genetics/immunology MH - Hepatitis B Surface Antigens/genetics/immunology MH - Hepatitis B virus/pathogenicity/physiology MH - Hepatitis B, Chronic/*genetics/immunology/virology MH - Humans MH - Male MH - Middle Aged MH - Models, Genetic MH - *Polymorphism, Single Nucleotide MH - Real-Time Polymerase Chain Reaction MH - Turkey OTO - NOTNLM OT - HBV clearance OT - HLA polymorphism OT - rs3077 OT - rs9277535 EDAT- 2017/01/26 06:00 MHDA- 2017/12/23 06:00 CRDT- 2017/01/26 06:00 PHST- 2016/11/05 00:00 [received] PHST- 2017/01/17 00:00 [revised] PHST- 2017/01/17 00:00 [accepted] PHST- 2017/01/26 06:00 [pubmed] PHST- 2017/12/23 06:00 [medline] PHST- 2017/01/26 06:00 [entrez] AID - S0168-1702(16)30720-1 [pii] AID - 10.1016/j.virusres.2017.01.017 [doi] PST - ppublish SO - Virus Res. 2017 Mar 15;232:6-12. doi: 10.1016/j.virusres.2017.01.017. Epub 2017 Jan 22.