PMID- 37752970 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230928 IS - 1178-7015 (Print) IS - 1178-7015 (Electronic) IS - 1178-7015 (Linking) VI - 16 DP - 2023 TI - Genome-Wide Association Study of Alopecia Areata in Taiwan: The Conflict Between Individuals and Hair Follicles. PG - 2597-2612 LID - 10.2147/CCID.S428788 [doi] AB - PURPOSE: Alopecia areata (AA) is one of the most prevalent autoimmune diseases affecting humans. Given that hair follicles are immune-privileged, autoimmunity can result in disfiguring hair loss. However, the genetic basis for AA in the Taiwanese population remains unknown. MATERIALS AND METHODS: A genome-wide association study was conducted using a cohort of 408 AA cases and 8167 controls. To link variants to gene relationships, we used 882 SNPs (P<1E-05) within 74 genes that were associated with AA group to build the biological networks by IPA software. HLA diplotypes and haplotypes were analyzed using Attribute Bagging (HIBAG)-R package and chi-square analysis. RESULTS: Seven single nucleotide polymorphisms (SNPs) including LINC02006 (rs531166736, rs187306735), APC (rs112800832_C_CAT), SRP19 (rs139948960, rs144784670), EGFLAM (rs16903975) and LDLRAD3 (rs79874564) were closely associated with the AA phenotype (P<5E-08). Examination of biological networks revealed that these genomic areas are associated with antigen presentation signaling, B cell and T cell development, Th1 and Th2 activation pathways, Notch signaling, crosstalk signaling between dendritic cells and natural killer cells, and phagosome maturation. Based on human leukocyte antigen (HLA) genotype analysis, four HLA genotypes (HLA-B*15:01-*40:01, HLA-DQA1*01:02-*03:03, HLA-DQA1*01:02, and HLA-DQB1*02:01) were found to be associated with AA (adjusted p-value<0.05). HLA-DQA1*01:02 is the most significantly related gene in the Taiwanese population (adjusted p-value = 2.09E-05). CONCLUSION: This study successfully identified susceptibility loci associated with AA in the Taiwanese population. These findings not only shed light on the origins of AA within the Taiwanese context but also contribute to a comprehensive understanding of the genetic factors influencing AA susceptibility. CI - (c) 2023 Yang et al. FAU - Yang, Jai-Sing AU - Yang JS AUID- ORCID: 0000-0001-7302-8248 AD - Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404327, Taiwan. FAU - Liu, Ting-Yuan AU - Liu TY AUID- ORCID: 0000-0002-2729-0541 AD - Million-Person Precision Medicine Initiative, Department of Medical Research, China Medical University Hospital, Taichung, 404327, Taiwan. FAU - Chen, Yu-Chia AU - Chen YC AUID- ORCID: 0000-0002-8837-6023 AD - Million-Person Precision Medicine Initiative, Department of Medical Research, China Medical University Hospital, Taichung, 404327, Taiwan. FAU - Tsai, Shih-Chang AU - Tsai SC AUID- ORCID: 0000-0001-9018-607X AD - Department of Biological Science and Technology, China Medical University, Taichung, 406040, Taiwan. FAU - Chiu, Yu-Jen AU - Chiu YJ AUID- ORCID: 0000-0002-8065-0876 AD - Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, 112201, Taiwan. AD - Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan. FAU - Liao, Chi-Chou AU - Liao CC AUID- ORCID: 0009-0006-0017-1805 AD - Million-Person Precision Medicine Initiative, Department of Medical Research, China Medical University Hospital, Taichung, 404327, Taiwan. FAU - Tsai, Fuu-Jen AU - Tsai FJ AUID- ORCID: 0000-0002-1373-245X AD - School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, 404333, Taiwan. AD - China Medical University Children's Hospital, Taichung, 404327, Taiwan. AD - Department of Medical Genetics, China Medical University Hospital, Taichung, 404327, Taiwan. LA - eng PT - Journal Article DEP - 20230921 PL - New Zealand TA - Clin Cosmet Investig Dermatol JT - Clinical, cosmetic and investigational dermatology JID - 101543449 PMC - PMC10519225 OTO - NOTNLM OT - HLA genotypes OT - alopecia areata OT - genome-wide association study OT - network analysis COIS- The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2023/09/27 06:43 MHDA- 2023/09/27 06:44 PMCR- 2023/09/21 CRDT- 2023/09/27 03:40 PHST- 2023/07/04 00:00 [received] PHST- 2023/09/14 00:00 [accepted] PHST- 2023/09/27 06:44 [medline] PHST- 2023/09/27 06:43 [pubmed] PHST- 2023/09/27 03:40 [entrez] PHST- 2023/09/21 00:00 [pmc-release] AID - 428788 [pii] AID - 10.2147/CCID.S428788 [doi] PST - epublish SO - Clin Cosmet Investig Dermatol. 2023 Sep 21;16:2597-2612. doi: 10.2147/CCID.S428788. eCollection 2023.