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Human leucocyte antigen ( HLA )‐ DQB 1*03:02 and HLA ‐A*02:01 have opposite patterns in their effects on susceptibility to HIV infection
Author(s) -
Rallón N,
Restrepo C,
Vicario JL,
Romero J,
Rodríguez C,
GarcíaSamaniego J,
García M,
Cabello A,
Górgolas M,
Benito JM
Publication year - 2017
Publication title -
hiv medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.53
H-Index - 79
eISSN - 1468-1293
pISSN - 1464-2662
DOI - 10.1111/hiv.12494
Subject(s) - human leukocyte antigen , allele , immunology , odds ratio , genotype , medicine , polymerase chain reaction , antigen , confidence interval , biology , genetics , gene
Objectives The objective of this study was to seek correlates of immune protection in HIV infection. We sought to elucidate the association between the presence of human leucocyte antigen ( HLA ) alleles, as well as killer immunoglobulin receptor ( KIR ) genotypes, and the susceptibility to HIV infection in a Spanish cohort of HIV ‐exposed seronegative ( HESN ) individuals. Methods A total of 152 individuals were evaluated: 29 HESN individuals in stable heterosexual relationships with an HIV ‐infected partner admitting high‐risk sexual intercourse for at least 12 months prior to inclusion in the study, 61 HIV ‐infected patients and 62 healthy controls. HLA class I and II alleles and KIR genotypes were assessed in genomic DNA from all individuals in the study by polymerase chain reaction−sequence‐specific oligonucleotide ( PCR ‐ SSO ) using bead array technology. Results HESN individuals showed a higher prevalence of HLA ‐A3 (62%) and HLA ‐B44 (83%) supertypes compared with HIV ‐infected individuals (42% and 66%, respectively). Regarding specific HLA alleles, HESN individuals had a higher prevalence of HLA ‐A*33:01, DRB 1*04 and DQB 1*03:02 alleles (14%, 34% and 31%, respectively) and a lower prevalence of the HLA ‐A*02:01 allele (27%) than HIV ‐infected patients (3%, 15%, 11% and 52%, respectively; P < 0.05). Interestingly, in a multivariate analysis, only the presence of DQB 1*03:02 and the absence of A*02:01 alleles were independently associated with HESN status [odds ratio ( OR ) 3.4 (95% confidence interval ( CI ) 1.1–10.5) and 0.4 (95% CI : 0.1–0.9), respectively; P < 0.05]. No KIR genotype was associated with susceptibility to HIV infection. Conclusions Our data showed that the presence of the HLA class II allele DQB 1*03:02 was a correlate of immune protection against HIV infection, while the presence of the HLA class I allele A*02:01 was associated with being infected with HIV .