PMID- 35170024 OWN - NLM STAT- MEDLINE DCOM- 20220413 LR - 20221015 IS - 1528-1167 (Electronic) IS - 0013-9580 (Print) IS - 0013-9580 (Linking) VI - 63 IP - 4 DP - 2022 Apr TI - Potential role of regulatory DNA variants in modifying the risk of severe cutaneous reactions induced by aromatic anti-seizure medications. PG - 936-949 LID - 10.1111/epi.17182 [doi] AB - OBJECTIVE: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous adverse drug reactions. Antiseizure medications (ASMs) with aromatic ring structure, including carbamazepine, are among the most common culprits. Screening for human leukocyte antigen (HLA) allele HLA-B*15:02 is recommended prior to initiating treatment with carbamazepine in Asians, but this allele has low positive predictive value. METHODS: We performed whole genome sequencing and analyzed 6 199 696 common variants among 113 aromatic ASM-induced SJS/TEN cases and 84 tolerant controls of Han Chinese ethnicity. RESULTS: In the primary analysis, nine variants reached genome-wide significance (p < 5e-08), one in the carbamazepine subanalysis (85 cases vs. 77 controls) and a further eight identified in HLA-B*15:02-negative subanalysis (35 cases and 53 controls). Interaction analysis between each novel variant from the primary analysis found that five increased risk irrespective of HLA-B*15:02 status or zygosity. HLA-B*15:02-positive individuals were found to have reduced risk if they also carried a chromosome 12 variant, chr12.9426934 (heterozygotes: relative risk = .71, p = .001; homozygotes: relative risk = .23, p < .001). All significant variants lie within intronic or intergenic regions with poorly understood functional consequence. In silico functional analysis of suggestive variants (p < 5e-6) identified through the primary and subanalyses (stratified by HLA-B*15:02 status and drug exposure) suggests that genetic variation within regulatory DNA may contribute to risk indirectly by disrupting the regulation of pathology-related genes. The genes implicated were specific either to the primary analysis (CD9), HLA-B*15:02 carriers (DOCK10), noncarriers (ABCA1), carbamazepine exposure (HLA-E), or phenytoin exposure (CD24). SIGNIFICANCE: We identified variants that could explain why some carriers of HLA-B*15:02 tolerate treatment, and why some noncarriers develop ASM-induced SJS/TEN. Additionally, this analysis suggests that the mixing of HLA-B*15:02 carrier status in previous studies might have masked variants contributing to susceptibility, and that inheritance of risk for ASM-induced SJS/TEN is complex, likely involving multiple risk variants. CI - (c) 2022 The Authors. Epilepsia published by Wiley Periodicals LLC on behalf of International League Against Epilepsy. FAU - Mullan, Kerry A AU - Mullan KA AUID- ORCID: 0000-0003-4400-1198 AD - Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia. FAU - Anderson, Alison AU - Anderson A AUID- ORCID: 0000-0002-1490-2262 AD - Department of Neuroscience, Central Clinical School, Alfred Hospital, Monash University, Melbourne, Victoria, Australia. FAU - Shi, Yi-Wu AU - Shi YW AD - Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China. FAU - Ding, Jia-Hong AU - Ding JH AD - Department of Psychiatry, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China. FAU - Ng, Ching-Ching AU - Ng CC AD - Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia. FAU - Chen, Zhibin AU - Chen Z AD - Department of Neuroscience, Central Clinical School, Alfred Hospital, Monash University, Melbourne, Victoria, Australia. AD - Departments of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia. FAU - Baum, Larry AU - Baum L AD - Department of Psychiatry, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China. FAU - Cherny, Stacey AU - Cherny S AD - Department of Psychiatry, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China. AD - Department of Epidemiology and Preventive Medicine, Tel Aviv University, Tel Aviv, Israel. FAU - Petrovski, Slave AU - Petrovski S AD - Epilepsy Research Centre, Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia. FAU - Sham, Pak C AU - Sham PC AD - Department of Psychiatry, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China. FAU - Lim, Kheng-Seang AU - Lim KS AD - Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. FAU - Liao, Wei-Ping AU - Liao WP AUID- ORCID: 0000-0001-9929-9185 AD - Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China. FAU - Kwan, Patrick AU - Kwan P AUID- ORCID: 0000-0001-7310-276X AD - Department of Neuroscience, Central Clinical School, Alfred Hospital, Monash University, Melbourne, Victoria, Australia. AD - Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China. AD - Departments of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220216 PL - United States TA - Epilepsia JT - Epilepsia JID - 2983306R RN - 0 (Anticonvulsants) RN - 0 (HLA-B Antigens) RN - 0 (HLA-B15 Antigen) RN - 33CM23913M (Carbamazepine) RN - 9007-49-2 (DNA) SB - IM MH - *Anticonvulsants/adverse effects MH - Carbamazepine/adverse effects MH - DNA MH - Genetic Predisposition to Disease/genetics MH - HLA-B Antigens/genetics MH - HLA-B15 Antigen/genetics MH - Humans MH - Risk Factors MH - *Stevens-Johnson Syndrome/genetics PMC - PMC9541367 OTO - NOTNLM OT - Han Chinese OT - Stevens-Johnson syndrome OT - antiseizure medications OT - cutaneous adverse drug reactions OT - genomics COIS- Z.C. is supported by an Early Career Fellowship from the National Health and Medical Research Council of Australia (GNT1156444), and he/his institution has received consultancy fees and/or research grants from Arvelle Therapeutics and UCB Pharma. None of the other authors has any conflict of interest to disclose. EDAT- 2022/02/17 06:00 MHDA- 2022/04/14 06:00 PMCR- 2022/10/07 CRDT- 2022/02/16 05:52 PHST- 2022/01/22 00:00 [revised] PHST- 2021/06/29 00:00 [received] PHST- 2022/01/24 00:00 [accepted] PHST- 2022/02/17 06:00 [pubmed] PHST- 2022/04/14 06:00 [medline] PHST- 2022/02/16 05:52 [entrez] PHST- 2022/10/07 00:00 [pmc-release] AID - EPI17182 [pii] AID - 10.1111/epi.17182 [doi] PST - ppublish SO - Epilepsia. 2022 Apr;63(4):936-949. doi: 10.1111/epi.17182. Epub 2022 Feb 16.