PMID- 28940887 OWN - NLM STAT- MEDLINE DCOM- 20180606 LR - 20180606 IS - 1521-2254 (Electronic) IS - 1099-498X (Linking) VI - 19 IP - 9-10 DP - 2017 Sep TI - Association of human leukocyte antigen polymorphisms with occult hepatitis B virus infection in a Shaanxi Han population. LID - 10.1002/jgm.2987 [doi] AB - BACKGROUND: Occult hepatitis B virus (HBV) infection (OBI) is defined as HBV DNA detection in serum or in the liver by sensitive diagnostic tests in HBV surface antigen (HBsAg) negative patients with or without serologic markers of previous HBV exposure. Because the human leukocyte antigen (HLA) system is an integral component of the immune response, we hypothesized that the highly polymorphic HLA genes were the key determinants of HBV persistence and clearance. The present study aimed to calculate the allelic frequency of HLA loci and investigate the association between HLA alleles and the outcome of OBI in Shaanxi Han population in the northwest of China. METHODS: We conducted a case-control study between 107 OBI subjects and 280 healthy control individuals from blood donors of Shaanxi Blood Center. Five HLA loci, including HLA-A,-B,-C,-DRB1 and -DQB1, were selected and further genotyped using a polymerase chain reaction sequence-based typing (SBT) method. RESULTS: Using the chi-squared test, we found that the allele frequencies of HLA-B*44:03 [odds ratios (OR) = 2.146, 95% confidence interval (CI) = 1.070-4.306, p = 0.028]; C*07:01 (OR = 4.693, CI = 1.822-12.086, p = 0.000); DQB1*02:02 (OR = 1.919, CI = 1.188-3.101, p = 0.007); and DRB1*07:01 (OR = 2.012, CI = 1.303-3.107, p = 0.001) were markedly higher in the OBI group compared to the healthy control group. The allele frequencies of HLA-DRB1*08:03 (OR = 0.395, CI = 0.152-1.027, p = 0.049); DRB1*15:01 (OR = 0.495, CI = 0.261-0.940, p = 0.029); and DQB1*06:02 (OR = 0.500, CI = 0.249-1.005, p = 0.048) were obviously lower in the OBI group compared to the healthy control group. These data indicated that HLA-B*44:03, C*07:01, DQB1*02:02 and DRB1*07:01 were related to OBI infection, whereas HLA-DRB1*08:03, DRB1*15:01 and DQB1*06:02 alleles were associated with HBV DNA clearance in a Shaanxi Han population. CONCLUSIONS: The results of the present study suggest that host HLA gene is an important influencing factor for OBI pathogenesis. CI - Copyright (c) 2017 John Wiley & Sons, Ltd. FAU - Wang, Tianju AU - Wang T AD - Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China. AD - Blood Center of the Shaanxi Province, Xi'an, Shaanxi, People's Republic of China. FAU - Shen, Chunmei AU - Shen C AD - Blood Center of the Shaanxi Province, Xi'an, Shaanxi, People's Republic of China. FAU - Chen, Liping AU - Chen L AD - Blood Center of the Shaanxi Province, Xi'an, Shaanxi, People's Republic of China. FAU - Liu, Sheng AU - Liu S AD - Blood Center of the Shaanxi Province, Xi'an, Shaanxi, People's Republic of China. FAU - Ji, Yanhong AU - Ji Y AD - Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China. LA - eng PT - Journal Article DEP - 20171018 PL - England TA - J Gene Med JT - The journal of gene medicine JID - 9815764 RN - 0 (DNA, Viral) RN - 0 (HLA Antigens) SB - IM MH - Adolescent MH - Adult MH - Alleles MH - Case-Control Studies MH - China/epidemiology/ethnology MH - DNA, Viral MH - Female MH - Gene Frequency MH - *Genetic Predisposition to Disease MH - Genotype MH - HLA Antigens/*genetics/immunology MH - Hepatitis B/epidemiology/*genetics/immunology/*virology MH - *Hepatitis B virus MH - Humans MH - Male MH - Middle Aged MH - Odds Ratio MH - *Polymorphism, Genetic MH - Young Adult OTO - NOTNLM OT - HLA OT - OBI OT - association analysis OT - gene polymorphism OT - heterozygote EDAT- 2017/09/25 06:00 MHDA- 2018/06/07 06:00 CRDT- 2017/09/24 06:00 PHST- 2017/01/21 00:00 [received] PHST- 2017/08/21 00:00 [revised] PHST- 2017/09/13 00:00 [accepted] PHST- 2017/09/25 06:00 [pubmed] PHST- 2018/06/07 06:00 [medline] PHST- 2017/09/24 06:00 [entrez] AID - 10.1002/jgm.2987 [doi] PST - ppublish SO - J Gene Med. 2017 Sep;19(9-10). doi: 10.1002/jgm.2987. Epub 2017 Oct 18.