Abstract:
:Associations between HLA class I alleles and HIV progression in populations exhibiting Amerindian and Caucasian genetic admixture remain understudied. Using univariable and multivariable analyses we evaluated HLA associations with five HIV clinical parameters in 3,213 HIV clade B-infected, ART-naïve individuals from Mexico and Central America (MEX/CAM cohort). A Canadian cohort (HOMER, n = 1622) was used for comparison. As expected, HLA allele frequencies in MEX/CAM and HOMER differed markedly. In MEX/CAM, 13 HLA-A, 24 HLA-B, and 14 HLA-C alleles were significantly associated with at least one clinical parameter. These included previously described protective (e.g. B*27:05, B*57:01/02/03 and B*58:01) and risk (e.g. B*35:02) alleles, as well as novel ones (e.g. A*03:01, B*15:39 and B*39:02 identified as protective, and A*68:03/05, B*15:30, B*35:12/14, B*39:01/06, B*39:05~C*07:02, and B*40:01~C*03:04 identified as risk). Interestingly, both protective (e.g. B*39:02) and risk (e.g. B*39:01/05/06) subtypes were identified within the common and genetically diverse HLA-B*39 allele group, characteristic to Amerindian populations. While HLA-HIV associations identified in MEX and CAM separately were similar overall (Spearman's rho = 0.33, p = 0.03), region-specific associations were also noted. The identification of both canonical and novel HLA/HIV associations provides a first step towards improved understanding of HIV immune control among unique and understudied Mestizo populations.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Valenzuela-Ponce H,Alva-Hernández S,Garrido-Rodríguez D,Soto-Nava M,García-Téllez T,Escamilla-Gómez T,García-Morales C,Quiroz-Morales VS,Tapia-Trejo D,Del Arenal-Sánchez S,Prado-Galbarro FJ,Hernández-Juan R,Rodríguez-Aguirre E,doi
10.1038/s41598-018-23849-7subject
Has Abstractpub_date
2018-04-17 00:00:00pages
6111issue
1issn
2045-2322pii
10.1038/s41598-018-23849-7journal_volume
8pub_type
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