PMID- 24956105 OWN - NLM STAT- MEDLINE DCOM- 20151105 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 6 DP - 2014 TI - Human leukocyte antigen class II haplotypes affect clinical characteristics and progression of type 1 autoimmune hepatitis in Japan. PG - e100565 LID - 10.1371/journal.pone.0100565 [doi] LID - e100565 AB - Although we earlier demonstrated that the human leukocyte antigen (HLA) DRB1*04:05 allele was associated with susceptibility to autoimmune hepatitis (AIH) in Japan, the precise relationship of HLA haplotype and the role of amino acid alignment with disease susceptibility and progression has not been fully clarified. We reinvestigated HLA class I A, B, and C and HLA class II DRB1, DQB1, and DPB1 alleles and haplotypes in a larger new cohort of 156 Japanese patients with type 1 AIH and compared them with the published data of 210 healthy subjects. The DRB1*04:05-DQB1*04:01 haplotype was significantly associated with AIH susceptibility (30% vs. 11%, P = 1.2x10(-10); odds ratio [OR] = 3.51) and correlated with elevated serum IgG (3042 vs. 2606 mg/dL, P = 0.041) and anti-smooth muscle antigen positivity (77% vs. 34%, P = 0.000006). No associations with HLA-DPB1 alleles were found. The HLA A*24:02 and C*01:02 alleles were associated with disease susceptibility (corrected P = 0.0053 and 0.036, respectively), but this likely constituents of a long ranged haplotype including DRB1*04:05-DQB1*04:01 haplotype. Conversely, the DRB1*15:01-DQB1*06:02 haplotype was associated with protection from both disease onset (5% vs. 13%, P = 0.00057; OR = 0.38) and the development of hepatocellular carcinoma (25% vs. 5%, P = 0.017; OR = 6.81). The frequency of the DRB1*08:03-DQB1*06:01 haplotype was significantly higher in patients who developed hepatic failure (22% vs. 6%, P = 0.034; OR = 4.38). In conclusion, this study established the role of HLA haplotypes in determining AIH susceptibility and progression in the Japanese population. Additional sequencing of the entire HLA region is required to more precisely identify the genetic components of AIH. FAU - Umemura, Takeji AU - Umemura T AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Katsuyama, Yoshihiko AU - Katsuyama Y AD - Department of Pharmacy, Shinshu University Hospital, Matsumoto, Japan. FAU - Yoshizawa, Kaname AU - Yoshizawa K AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan; Department of Gastroenterology, NHO Ueda Medical Center, Ueda, Japan. FAU - Kimura, Takefumi AU - Kimura T AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Joshita, Satoru AU - Joshita S AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Komatsu, Michiharu AU - Komatsu M AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Matsumoto, Akihiro AU - Matsumoto A AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Tanaka, Eiji AU - Tanaka E AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. FAU - Ota, Masao AU - Ota M AD - Department of Legal Medicine, Shinshu University School of Medicine, Matsumoto, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140623 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Aged MH - Disease Progression MH - Female MH - Follow-Up Studies MH - Genetic Predisposition to Disease MH - Haplotypes/*genetics MH - Hepatitis, Autoimmune/epidemiology/*genetics/*immunology MH - Histocompatibility Antigens Class I/chemistry/*genetics MH - Histocompatibility Antigens Class II/chemistry/*genetics MH - Humans MH - Japan/epidemiology MH - Male MH - Middle Aged MH - Prognosis MH - Protein Conformation PMC - PMC4067340 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/06/24 06:00 MHDA- 2015/11/06 06:00 PMCR- 2014/06/23 CRDT- 2014/06/24 06:00 PHST- 2014/03/20 00:00 [received] PHST- 2014/05/25 00:00 [accepted] PHST- 2014/06/24 06:00 [entrez] PHST- 2014/06/24 06:00 [pubmed] PHST- 2015/11/06 06:00 [medline] PHST- 2014/06/23 00:00 [pmc-release] AID - PONE-D-14-12567 [pii] AID - 10.1371/journal.pone.0100565 [doi] PST - epublish SO - PLoS One. 2014 Jun 23;9(6):e100565. doi: 10.1371/journal.pone.0100565. eCollection 2014.