PMID- 21953406 OWN - NLM STAT- MEDLINE DCOM- 20120325 LR - 20130520 IS - 1527-3350 (Electronic) IS - 0270-9139 (Linking) VI - 55 IP - 2 DP - 2012 Feb TI - Human leukocyte antigen class II molecules confer both susceptibility and progression in Japanese patients with primary biliary cirrhosis. PG - 506-11 LID - 10.1002/hep.24705 [doi] AB - Along with twin and family studies, recent genome-wide association studies suggest that genetic factors contribute to the susceptibility and severity of primary biliary cirrhosis (PBC). Although several reports have demonstrated that the human leukocyte antigen (HLA) DRB1*08:03 allele is associated with disease susceptibility in Japan, the precise analysis of HLA haplotypes and the role of amino acid alignment have not been fully clarified. We investigated HLA class I A, B, and C and HLA class II DRB1 and DQB1 alleles and haplotypes in 229 Japanese patients with PBC and compared them with the published data of 523 healthy subjects. Significant associations were found with PBC susceptibility for the DRB1*08:03-DQB1*06:01 (13% versus 6%; P = 0.000025; odds ratio [OR] = 2.22) and DRB1*04:05-DQB1*04:01 haplotypes (17% versus 13%; P = 0.044; OR = 1.38). Conversely, there were significant protective associations with the DRB1*13:02-DQB1*06:04 (2% versus 5%; P = 0.00093; OR = 0.27) and DRB1*11:01-DQB1*03:01 haplotypes (1% versus 4%; P = 0.03; OR = 0.37). The frequency of the DRB1*09:01-DQB1*03:03 haplotype was significantly higher in patients who had received orthotopic liver transplantation (33% versus 11%; P = 0.0012; OR = 3.96). Furthermore, the frequency of serine at position 57 (P = 0.0000015; OR = 1.83) of the DRbetachain differed the most in patients with PBC, compared with healthy subjects. CONCLUSION: This study established the role of HLA haplotypes in determining PBC susceptibility and progression in the Japanese population. Further resequencing of the HLA region is required to more precisely identify the genetic components of PBC. CI - Copyright (c) 2011 American Association for the Study of Liver Diseases. FAU - Umemura, Takeji AU - Umemura T AD - Department of Medicine, Division of Hepatology and Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan. tumemura@shinshu-u.ac.jp FAU - Joshita, Satoru AU - Joshita S FAU - Ichijo, Tetsuya AU - Ichijo T FAU - Yoshizawa, Kaname AU - Yoshizawa K FAU - Katsuyama, Yoshihiko AU - Katsuyama Y FAU - Tanaka, Eiji AU - Tanaka E FAU - Ota, Masao AU - Ota M CN - Shinshu PBC Study Group LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111219 PL - United States TA - Hepatology JT - Hepatology (Baltimore, Md.) JID - 8302946 RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Alleles MH - Amino Acid Sequence MH - Case-Control Studies MH - Disease Progression MH - Female MH - Genetic Predisposition to Disease MH - HLA-DQ beta-Chains/*genetics MH - HLA-DRB1 Chains/*genetics MH - Haplotypes MH - Humans MH - Liver Cirrhosis, Biliary/genetics/*immunology MH - Male MH - Middle Aged FIR - Ichikawa-Yamada, Yuki IR - Ichikawa-Yamada Y FIR - Kimura, Takefumi IR - Kimura T FIR - Morita, Susumu IR - Morita S FIR - Kamijo, Atsushi IR - Kamijo A FIR - Komatsu, Michiharu IR - Komatsu M FIR - Matsumoto, Akihiro IR - Matsumoto A FIR - Yamamura, Nobuyoshi IR - Yamamura N EDAT- 2011/09/29 06:00 MHDA- 2012/03/27 06:00 CRDT- 2011/09/29 06:00 PHST- 2011/09/19 00:00 [accepted] PHST- 2011/09/29 06:00 [entrez] PHST- 2011/09/29 06:00 [pubmed] PHST- 2012/03/27 06:00 [medline] AID - 10.1002/hep.24705 [doi] PST - ppublish SO - Hepatology. 2012 Feb;55(2):506-11. doi: 10.1002/hep.24705. Epub 2011 Dec 19.