Research Report
Carbamazepine-induced toxic epidermal necrolysis in a patient with HLA-A*31:01 allele
Li Lina, Zhang Junjun, Zhang Shoumin
Published 2020-11-15
Cite as Chin J Dermatol, 2020, 53(11): 917-919. DOI: 10.35541/cjd.20190951
Abstract
ObjectiveTo detect susceptibility genes for toxic epidermal necrolysis (TEN) caused by carbamazepine in a patient.
MethodsClinical data and peripheral blood samples were collected from a patient with carbamazepine-induced TEN. DNA was extracted from the peripheral blood samples, fluorescence in situ hybridization was performed to detect susceptibility gene loci for carbamazepine-induced TEN, including HLA-A*31:01 (rs1633021), HLA-B*58:01 (rs3095318), HLA-B*15:02 (rs3909184) and HLA-B*15:02 (rs2844682) .
ResultsThe 40-year-old female patient of Han nationality presented with perioral erythema and blisters for 7 days, which had spread all over the body for 4 days. The patient had been treated with carbamazepine for 1 month before the occurrence of skin lesions. Genetic testing showed that the patient was negative for HLA-B*15:02 allele, but positive for HLA-A*31:01 allele.
ConclusionThe Chinese patient of Han nationality with carbamazepine-induced TEN was positive for HLA-A*31:01 allele.
Key words:
Carbamazepine; Epidermal necrolysis, toxic; HLA antigens; Genetic predisposition to disease; HLA-A*31:01 allele gene
Contributor Information
Li Lina
Department of Dermatology and Venereology, Henan Provincial People′s Hospital, People′s Hospital of Zhengzhou University, Zhengzhou 450003, China
Zhang Junjun
School of Clinical Medicine, Henan University, Zhengzhou 450003, China
Zhang Shoumin
Department of Dermatology and Venereology, Henan Provincial People′s Hospital, People′s Hospital of Zhengzhou University, Zhengzhou 450003, China