Development of label-free electrochemical impedance spectroscopy for the detection of HLA-B*15:02 and HLA-B*15:21 for the prevention of carbamazepine-induced Stevens-Johnson syndrome

Anal Biochem. 2022 Dec 1:658:114931. doi: 10.1016/j.ab.2022.114931. Epub 2022 Oct 1.

Abstract

Background: Carbamazepine (CBZ) is an FDA-approved anticonvulsant that is widely used to treat epilepsy, bipolar disorder, trigeminal neuralgia and chronic pain. Several studies have reported a strong association between HLA-B*15:02 and carbamazepine-induced Stevens-Johnson syndrome (SJS) or toxic epidermal necrolysis (TEN). However, the HLA-B75 serotype (HLA-B*15:02, HLA-B*15:08, HLA-B*15:11 and HLA-B*15:21) has been found in patients with carbamazepine-induced SJS/TEN.

Methods: This study aimed to develop label-free electrochemical impedance spectroscopy (EIS) for the detection of HLA-B*15:02 and HLA-B*15:21 after PCR-SSP amplification. A total of 208 DNA samples were tested. The impedance was measured and compared to standard gel electrophoresis.

Results: The developed label-free EIS identified HLA-B*15:02 and HLA-B*15:21 alleles with 100% sensitivity (95% CI: 86.773%-100.000%) and 95.05% specificity (95% CI: 90.821%-97.714%), comparable to commercial DMSc 15:02 detection kits.

Conclusions: We successfully developed a novel PCR-SSP associated with signal impedance changes to detect the HLA-B*15:02 allele and HLA-B*15:21 without downstream amplicon size analysis that is suitable for screening individuals before indication of CBZ therapy.

Keywords: EIS; HLA-B*15:02; PCR-SSP; SJS; TEN.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anticonvulsants / therapeutic use
  • Benzodiazepines
  • Carbamazepine* / adverse effects
  • Carbamazepine* / pharmacology
  • Dielectric Spectroscopy* / methods
  • Genetic Predisposition to Disease
  • HLA-B Antigens / chemistry
  • HLA-B Antigens / genetics
  • HLA-B15 Antigen / chemistry
  • HLA-B15 Antigen / genetics
  • Humans
  • Stevens-Johnson Syndrome* / diagnosis
  • Stevens-Johnson Syndrome* / etiology
  • Stevens-Johnson Syndrome* / genetics

Substances

  • Anticonvulsants
  • Benzodiazepines
  • Carbamazepine
  • HLA-B Antigens
  • HLA-B15 Antigen