PMID- 34212547 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220317 IS - 2092-7355 (Print) IS - 2092-7363 (Electronic) IS - 2092-7355 (Linking) VI - 13 IP - 4 DP - 2021 Jul TI - Genome-Wide Association Study of Korean Asthmatics: A Comparison With UK Asthmatics. PG - 609-622 LID - 10.4168/aair.2021.13.4.609 [doi] AB - PURPOSE: Although genome-wide association studies (GWASs) represent the most powerful approach for identifying genes that influence asthma, to date, no studies have established genetic susceptibility to asthma in the Korean population. This study aimed to identify genetic variants associated with adult Korean asthmatics and compare them with the significant single nucleotide polymorphisms (SNPs) of UK asthmatics from the UK Biobank. METHODS: Patients were defined as having asthma if they were diagnosed by a doctor or taking medications for asthma. Controls were defined as individuals without asthma or chronic obstructive pulmonary disease. We performed quality control, genotype imputation, GWAS, and PrediXcan analyses. In the GWAS, a P value of < 5 x 10(-8) was considered significant. We compared significant SNPs between Korean and UK patients with asthma. RESULTS: A total of 1,386 asthmatic patients and 5,205 controls were analyzed. The SNP rs1770, located near the human leukocyte antigen (HLA)-DQB1, was the most significant SNP (P = 4.5 x 10(-10)). In comparison with 24 SNPs in a GWAS of UK asthmatics, six SNPs were significant with the same odds ratio (OR) direction, including signals related to type 2 inflammation (e.g., IL1RL1, TSLP, and GATA3) and mucus plugging (e.g., MUC5AC). HLA-DQA1 showed an opposite OR direction. The HLA-DQB1 gene demonstrated significantly imputed mRNA expression in the lung tissue and whole blood. CONCLUSIONS: The SNP rs1770 of HLA-DQB1 was the most significant in Korean asthmatics. Similarities and discrepancies were found in the genetic variants between Korean and UK asthmatics. GWAS of Korean asthmatics should be replicated and compared with those of GWAS of other ethnicities. CI - Copyright (c) 2021 The Korean Academy of Asthma, Allergy and Clinical Immunology . The Korean Academy of Pediatric Allergy and Respiratory Disease. FAU - An, Jin AU - An J AUID- ORCID: 0000-0001-5416-2660 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. AD - Department of Pulmonary, Allergy and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Korea. FAU - Do, Ah Ra AU - Do AR AUID- ORCID: 0000-0002-4259-8309 AD - Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, Korea. FAU - Kang, Hae Yeon AU - Kang HY AUID- ORCID: 0000-0003-3965-7539 AD - Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea. FAU - Kim, Woo Jin AU - Kim WJ AUID- ORCID: 0000-0003-2927-370X AD - Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, Korea. FAU - Lee, Sanghun AU - Lee S AUID- ORCID: 0000-0002-0573-9555 AD - Department of Medical Consilience, Graduate School, Dankook university, Yongin, Korea. FAU - Lee, Ji Hyang AU - Lee JH AUID- ORCID: 0000-0003-4286-3114 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Song, Woo Jung AU - Song WJ AUID- ORCID: 0000-0002-4630-9922 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Kwon, Hyouk Soo AU - Kwon HS AUID- ORCID: 0000-0001-7695-997X AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Cho, You Sook AU - Cho YS AUID- ORCID: 0000-0001-8767-2667 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Moon, Hee Bom AU - Moon HB AUID- ORCID: 0000-0001-7542-5917 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Hu, Sile AU - Hu S AUID- ORCID: 0000-0002-8437-7387 AD - Experimental Studies, Airways Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom. FAU - Adcock, Ian M AU - Adcock IM AUID- ORCID: 0000-0003-2101-8843 AD - Experimental Studies, Airways Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom. FAU - Chung, Kian Fan AU - Chung KF AUID- ORCID: 0000-0001-7101-1426 AD - Experimental Studies, Airways Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom. FAU - Won, Sungho AU - Won S AUID- ORCID: 0000-0001-5751-5089 AD - Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, Korea. AD - Department of Public Health Sciences, School of Public Health, Seoul National University, Seoul, Korea. AD - Institute of Health and Environment, Seoul National University, Seoul, Korea. sunghow@gmail.com. FAU - Kim, Tae Bum AU - Kim TB AUID- ORCID: 0000-0001-5663-0640 AD - Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. tbkim@amc.seoul.kr. LA - eng GR - MC_PC_17228/MRC_/Medical Research Council/United Kingdom GR - MC_QA137853/MRC_/Medical Research Council/United Kingdom GR - MR/T010371/1/MRC_/Medical Research Council/United Kingdom GR - 2019M3E5D3073365/NRF/National Research Foundation of Korea/Korea PT - Journal Article PL - Korea (South) TA - Allergy Asthma Immunol Res JT - Allergy, asthma & immunology research JID - 101518382 PMC - PMC8255356 OTO - NOTNLM OT - Genome-wide association study OT - Korea OT - United Kingdom OT - asthma OT - genetics OT - human leukocyte antigen COIS- There are no financial or other issues that might lead to conflict of interest. EDAT- 2021/07/03 06:00 MHDA- 2021/07/03 06:01 PMCR- 2021/07/01 CRDT- 2021/07/02 07:08 PHST- 2020/12/07 00:00 [received] PHST- 2021/04/19 00:00 [revised] PHST- 2021/05/12 00:00 [accepted] PHST- 2021/07/02 07:08 [entrez] PHST- 2021/07/03 06:00 [pubmed] PHST- 2021/07/03 06:01 [medline] PHST- 2021/07/01 00:00 [pmc-release] AID - 13.609 [pii] AID - 10.4168/aair.2021.13.4.609 [doi] PST - ppublish SO - Allergy Asthma Immunol Res. 2021 Jul;13(4):609-622. doi: 10.4168/aair.2021.13.4.609.