Özet:

OBJECTIVE: Many human leukocyte antigen (HLA)-B alleles are associated with an increased risk of Acquired Immune Deficiency Syndrome (AIDS) and Human Immunodeficiency Virus (HIV) progression; however, their distribution varies among different racial/ethnic groups. Abacavir used in the treatment of AIDS significantly increases the risk of hypersensitivity reactions in patients with HLA-B*57: 01. The aim of this study was to determine the distribution of HIV-associated HLA-B subgroups (high and low resolution) and HLA-B*57: 01 associated with Abacavir sensitivity in Turkey. METHODS: This retrospective case-control study consisted of 416 (F/M: 111/305) HIV positive patients and 416 (F/M: 111/305) healthy controls. HLA-B alleles were identified using Luminex based low-resolution method and further subgrouped by sequence-based high-resolution typing. RESULTS: Our data showed that in patients with HIV-1 infection, HLA-B*15, *35, and *51 allele frequencies were higher, while the HLA-B*07, *14 and *55 allele frequencies were lower as compared to the controls. It was determined that HLA-B*15: 01, *35: 01, *35: 08, and *51: 01 alleles frequencies were higher in the patients with HIV-1 infection compared to the controls as HLA-B*07: 02, *14: 01, *44: 01, and *55: 01 allele frequencies were detected low. HLA-B*57: 01 allele positivity, which is important in Abacavir hypersensitivity, was lower than controls, and this difference was not statistically significant. CONCLUSION: Our results suggest that, HLA-B*07, *14, and *55 alleles and HLA-B*07: 02, *14: 01, *44: 01, and *55: 01 subgroups might have a protective effect, while HLA-B*15, *35, and *51 alleles and HLA-B*15: 01, *35: 01, *35: 08, and *51: 01 subgroups might play a role in susceptibility to HIV-1 infection.

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