Evaluation of HLA class I and HLA class II allele profile and its relationship with clinical features in patients with alopecia areata: a case-control study

Hayran Y., Korkut M. G., Oktem A., Sen O., Aksoy G. G., ÖZMEN F.

JOURNAL OF DERMATOLOGICAL TREATMENT, vol.33, no.4, pp.2175-2181, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 4
  • Publication Date: 2022
  • Doi Number: 10.1080/09546634.2021.1937478
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.2175-2181
  • Keywords: Alopecia areata, HLA, disease characteristics, prognostic factors, T-CELLS, ASSOCIATION, HAIR, DISEASE, PREVALENCE, GUIDELINES, HAPLOTYPE, HLA-DQA1, VACCINE, MODEL
  • Hacettepe University Affiliated: Yes


Background Alopecia areata (AA) is an autoimmune disease where autoimmune dysregulations along with genetic susceptibility are hypothesized to play a role in pathogenesis. Objective The aim of this study in to evaluate HLA-A, HLA-B, HLA-C, HLA-DQB1, and HLA-DRB1 profile and its relationship with clinical features in AA patients. Materials and methods Ninety-eight patients with AA and 100 healthy controls were included in the study. HLA-A, HLA-B, HLA-C, HLA-DQB1, and HLA-DRB1 frequencies were analyzed using polymerase chain reaction-sequence specific primers (PCR-SSP). Results HLA-B*39 and HLA-HLA-DRB1*15 allele frequencies were increased (p = .022 and p = .023, respectively), HLA-A*11 and HLA-B*35 frequencies were decreased (p = .006 and p = .014, respectively) in AA patients. HLA-B*13 and HLA-DRB1*11 were associated with poor prognostic factors. A class I allele, HLA-B*13 was associated with recurrence (p = .023) and presence of nevus flammeus (p = .022), while the class II allele HLA-DRB1*11 was associated with widespread hair loss (diffuse or universal alopecia) (p = .026), presence of ophiasis (p = .049) and juvenile onset (p = .018). Conclusion Belonging to two different classes of HLA family, HLA-B*13 and HLA-DRB1*11 alleles identified separate set of risk factors. In addition to increasing the risk of AA, HLA alleles may affect the prognosis of the disease.