ArticleAIDS research and therapy2025
Distribution of CCR5-Delta32, CCR2-64I, and SDF1-3'A host genetic factors in HIV-infected and uninfected individuals in Luanda, Angola.
Article in AIDS research and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Host genetics influences HIV reservoir persistence, treatment outcomes and CCR5 expression in patients on long-term antiretroviral therapy in Ghana.Frontiers in immunology · 2026Article
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11 authors.
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Abstract
backgroundThe HIV/AIDS pandemic remains a public health concern. Studies on host genetic polymorphisms that confer resistance to HIV-1 infection or delay HIV disease progression are scarce in African countries. Herein, we investigate the proportion of the mutated phenotype of the AIDS-related polymorphisms CCR5-Delta32, CCR2-64I, and SDF1-3'A in HIV-infected and uninfected individuals in Luanda, the capital of Angola, a sub-Saharan African country.
methodsThis was a cross-sectional study conducted with 284 individuals, of whom 159 were HIV-negative and 125 were HIV-positive. The CCR5-Delta32, CCR2-64I, and SDF1-3'A genotypes were detected by conventional PCR and visualised on 2% agarose gel. A Chi-square test determined the frequency of each genetic variant and was deemed significant when p < 0.05.
resultsThe frequency of CCR5-Delta32, CCR2-64I, and SDF1-3 A was 0% (0/272), 60.2% (154/256), and 42.5% (114/268), respectively. CCR2-64I and SDF1-3 A polymorphisms were statistically related to HIV infection (p < 0.001). Statistically significant was observed between ABO blood groups (p = 0.006) and HIV-1 subtype (p = 0.015) with CCR2-64I. Also, the age group (p = 0.024) and RH blood group (p = 0.018) were statistically related to the distribution of SDF1-3 A polymorphism.
conclusionsWe found no CCR5-Delta32 allele, while CCR2-64I and SDF1-3'A were found and presented a relationship with HIV infection, age, ABO/RH blood group, and HIV-1 subtypes. The observed associations of CCR2-64I and SDF1-3'A with HIV underscore the urgent need for further multidisciplinary research, with potential implications for targeted prevention and public health strategies. Therefore, studies investigating biological and non-biological factors related to susceptibility to HIV infection and AIDS progression or death should be conducted in Angola.
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