PMID- 33509297 OWN - NLM STAT- MEDLINE DCOM- 20220204 LR - 20220204 IS - 1479-7364 (Electronic) IS - 1473-9542 (Print) IS - 1473-9542 (Linking) VI - 15 IP - 1 DP - 2021 Jan 28 TI - Genetic risk factors for autoimmune hepatitis: implications for phenotypic heterogeneity and biomarkers for drug response. PG - 6 LID - 10.1186/s40246-020-00301-4 [doi] LID - 6 AB - Autoimmune hepatitis (AIH) is a rare chronic progressive liver disease with autoimmune features. It mainly affects middle-aged women. AIH is occasionally complicated with liver cirrhosis that worsens the prognosis. Genetic and environmental factors are involved in the pathogenesis of AIH. Genetic studies of other diseases have been revealing of pathogenesis and drug efficacy. In this review, we summarize the genetic risk factors for AIH, including human leukocyte antigen (HLA) and non-HLA genes. A genome-wide association study (GWAS) on European AIH revealed the strongest associations to be with single nucleotide variants (SNVs) in HLA. Predisposing alleles for AIH were DRB1*03:01 and DRB1*04:01 in Europeans; DRB1*04:04, DRB1*04:05, and DRB1*13:01 in Latin Americans; and DRB1*04:01 and DRB1*04:05 in Japanese. Other risk SNVs in non-HLA genes for AIH were found by a candidate gene approach, but several SNVs were confirmed in replication studies. Some genetic factors of AIH overlapped with those of other autoimmune diseases. Larger-scale GWASs of other ethnic groups are required. The results of genetic studies might provide an explanation for the phenotypic heterogeneity of AIH and biomarkers for drug responses. FAU - Higuchi, Takashi AU - Higuchi T AD - Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan. AD - Department of Nephrology, Ushiku Aiwa General Hospital, 896 Shishiko-cho, Ushiku, 300-1296, Japan. AD - Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose, 204-8585, Japan. FAU - Oka, Shomi AU - Oka S AD - Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan. AD - Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose, 204-8585, Japan. AD - Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, 252-0392, Japan. FAU - Furukawa, Hiroshi AU - Furukawa H AUID- ORCID: 0000-0003-1353-8056 AD - Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan. furukawa-tky@umin.org. AD - Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose, 204-8585, Japan. furukawa-tky@umin.org. AD - Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, 252-0392, Japan. furukawa-tky@umin.org. FAU - Tohma, Shigeto AU - Tohma S AD - Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose, 204-8585, Japan. AD - Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, 252-0392, Japan. FAU - Yatsuhashi, Hiroshi AU - Yatsuhashi H AD - Clinical Research Center, National Hospital Organization Nagasaki Medical Center, 2-1001-1 Kubara, Omura, 856-8562, Japan. FAU - Migita, Kiyoshi AU - Migita K AD - Clinical Research Center, National Hospital Organization Nagasaki Medical Center, 2-1001-1 Kubara, Omura, 856-8562, Japan. AD - Department of Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20210128 PL - England TA - Hum Genomics JT - Human genomics JID - 101202210 RN - 0 (Biomarkers, Pharmacological) RN - 0 (HLA Antigens) SB - IM MH - Alleles MH - Biomarkers, Pharmacological/*blood MH - Genetic Heterogeneity MH - *Genetic Predisposition to Disease MH - Genome-Wide Association Study MH - HLA Antigens/*genetics MH - Hepatitis, Autoimmune/drug therapy/*genetics/pathology MH - Humans MH - Phenotype MH - Risk Factors PMC - PMC7841991 OTO - NOTNLM OT - Autoimmune hepatitis OT - Genetic risk factor OT - HLA OT - Liver cirrhosis OT - Single nucleotide variant COIS- HY was supported by research grants from AbbVie GK. The other authors declare no financial or commercial conflicts of interest. EDAT- 2021/01/30 06:00 MHDA- 2022/02/05 06:00 PMCR- 2021/01/28 CRDT- 2021/01/29 05:39 PHST- 2020/10/21 00:00 [received] PHST- 2020/12/15 00:00 [accepted] PHST- 2021/01/29 05:39 [entrez] PHST- 2021/01/30 06:00 [pubmed] PHST- 2022/02/05 06:00 [medline] PHST- 2021/01/28 00:00 [pmc-release] AID - 10.1186/s40246-020-00301-4 [pii] AID - 301 [pii] AID - 10.1186/s40246-020-00301-4 [doi] PST - epublish SO - Hum Genomics. 2021 Jan 28;15(1):6. doi: 10.1186/s40246-020-00301-4.