World Allergy Organization Journal (May 2024)

HLA-DRB1 is associated with cefaclor-induced immediate hypersensitivity

  • So-Young Park, MD, PhD,
  • So Young Park, MD, PhD,
  • Sujin Seo, BS,
  • Hyouk-Soo Kwon, MD, PhD,
  • Seung-Hyun Kim, PhD,
  • Sae-Hoon Kim, MD, PhD,
  • Hye-Kyung Park, MD, PhD,
  • Yoon-Seok Chang, MD, PhD,
  • Cheol-Woo Kim, MD, PhD,
  • Byung Jae Lee, MD, PhD,
  • Hae-Sim Park, MD, PhD,
  • You Sook Cho, MD, PhD,
  • Heung-Bum Oh, PhD,
  • David A. Ostrov, PhD,
  • Sungho Won, PhD,
  • Tae Bum Kim, MD, PhD

Journal volume & issue
Vol. 17, no. 5
p. 100901

Abstract

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Background: Drug-induced hypersensitivity such as anaphylaxis is an important cause of drug-related morbidity and mortality. Cefaclor is a leading cause of drug induced type I hypersensitivity in Korea, but little is yet known about genetic biomarkers to predict this hypersensitivity reaction. We aimed to evaluate the possible involvement of genes in cefaclor induced type I hypersensitivity. Methods: Whole exome sequencing (WES) and HLA genotyping were performed in 43 patients with cefaclor induced type I hypersensitivity. In addition, homology modeling was performed to identify the binding forms of cefaclor to HLA site. Results: Anaphylaxis was the most common phenotype of cefaclor hypersensitivity (90.69%). WES results show that rs62242177 and rs62242178 located in LIMD1 region were genome-wide significant at the 5 × 10−8 significance level. Cefaclor induced type I hypersensitivity was significantly associated with HLA-DRB1∗04:03 (OR 4.61 [95% CI 1.51–14.09], P < 0.002) and HLA-DRB1∗14:54 (OR 3.86 [95% CI 1.09–13.67], P < 0.002). Conclusion: LIMD1, HLA-DRB1∗04:03 and HLA-DRB1∗14:54 may affect susceptibility to cefaclor induced type I hypersensitivity. Further confirmative studies with a larger patient population should be performed to ascertain the role of HLA-DRB1 and LIMD1 in the development of cefaclor induced hypersensitivity.

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