PMID- 33333223 OWN - NLM STAT- MEDLINE DCOM- 20210121 LR - 20211204 IS - 1879-0038 (Electronic) IS - 0378-1119 (Linking) VI - 771 DP - 2021 Mar 1 TI - Association of xenobiotic receptor polymorphisms with carbamazepine response in epilepsy patients. PG - 145359 LID - S0378-1119(20)31028-3 [pii] LID - 10.1016/j.gene.2020.145359 [doi] AB - PURPOSE: Drug-resistant epilepsy is a problem worldwide. Xenobiotic receptors may play a significant role in the establishment of resistance to antiepileptic agents. Previous studies have confirmed that the metabolism and efficacy of carbamazepine (CBZ) can be influenced by xenobiotic receptors, especially pregnane X receptor (PXR), constitutive androstane receptor (CAR), and aryl hydrocarbon receptor (AHR). Therefore, this study intends to elucidate the pharmacogenomic associations of polymorphisms of these xenobiotic receptors with the CBZ response in epilepsy patients, and these genetic data may be useful for the treatment of clinical prophylaxis and individualized treatment of intractable epilepsy. METHODS: Adult patients with epilepsy who were on CBZ-based monotherapy and combination therapy (n = 257) were genotyped, and the patients were divided into drug-responsive and drug-resistant groups according to the International League Against Epilepsy criteria. We sought to tag single-nucleotide polymorphisms (SNPs) of PXR, CAR and AHR that principally represent alleles associated with drug resistance risk; in addition, a gene interaction analysis reference panel was constructed for SNP-based imputation. RESULTS: No significant effects of PXR or AHR polymorphisms were observed. However, an interaction between the CAR rs2502815 variant and CBZ response was observed: in CBZ-based monotherapy and combination therapy patients, the GG genotype of the CAR rs2502815 variant (vs. wild-type homozygous) was independently associated with CBZ response after adjusting for variables [odds ratio (OR) = 0.389, 95% confidence interval (CI) 0.203-0.743, p = 0.004]. The results of the haplotype and gene interaction case-control analyses of the CBZ response were negative. Our results provide clinical data regarding the genetic possibilities of drug responses related to CAR variation in epilepsy patients. CONCLUSION: This study is the first to indicate a potentially relevant interaction between the CAR rs2502815 polymorphism and the CBZ response in epilepsy patients. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Kong, Fan-Cheng AU - Kong FC AD - Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China. FAU - Ma, Chun-Lai AU - Ma CL AD - Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China. Electronic address: chunlaima@126.com. FAU - Lang, Li-Qin AU - Lang LQ AD - Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China. Electronic address: langlq1212@163.com. FAU - Zhong, Ming-Kang AU - Zhong MK AD - Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China. LA - eng PT - Journal Article DEP - 20201215 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (AHR protein, human) RN - 0 (Basic Helix-Loop-Helix Transcription Factors) RN - 0 (Constitutive Androstane Receptor) RN - 0 (NR1I2 protein, human) RN - 0 (Pregnane X Receptor) RN - 0 (Receptors, Aryl Hydrocarbon) RN - 0 (Receptors, Cytoplasmic and Nuclear) RN - 33CM23913M (Carbamazepine) SB - IM MH - Adolescent MH - Adult MH - Basic Helix-Loop-Helix Transcription Factors/*genetics MH - Carbamazepine/*administration & dosage/pharmacology MH - Case-Control Studies MH - Child MH - Constitutive Androstane Receptor MH - *Drug Resistance MH - Epilepsy/*drug therapy/genetics MH - Female MH - Genetic Association Studies MH - Haplotypes MH - Humans MH - Male MH - Pharmacogenomic Variants MH - Polymorphism, Single Nucleotide MH - Precision Medicine MH - Pregnane X Receptor/*genetics MH - Receptors, Aryl Hydrocarbon/*genetics MH - Receptors, Cytoplasmic and Nuclear/*genetics MH - Treatment Outcome MH - Young Adult OTO - NOTNLM OT - Aryl hydrocarbon receptor (AHR) OT - Carbamazepine (CBZ) OT - Constitutive androstane receptor (CAR) OT - Drug-resistant epilepsy OT - Polymorphisms OT - Pregnane X receptor (PXR) EDAT- 2020/12/18 06:00 MHDA- 2021/01/22 06:00 CRDT- 2020/12/17 20:11 PHST- 2020/08/03 00:00 [received] PHST- 2020/11/03 00:00 [revised] PHST- 2020/12/01 00:00 [accepted] PHST- 2020/12/18 06:00 [pubmed] PHST- 2021/01/22 06:00 [medline] PHST- 2020/12/17 20:11 [entrez] AID - S0378-1119(20)31028-3 [pii] AID - 10.1016/j.gene.2020.145359 [doi] PST - ppublish SO - Gene. 2021 Mar 1;771:145359. doi: 10.1016/j.gene.2020.145359. Epub 2020 Dec 15.