PMID- 16148166 OWN - NLM STAT- MEDLINE DCOM- 20051025 LR - 20221207 IS - 1071-412X (Print) IS - 1098-6588 (Electronic) IS - 1071-412X (Linking) VI - 12 IP - 9 DP - 2005 Sep TI - Major histocompatibility complex class II (HLA-DRB and -DQB) allele frequencies in Botswana: association with human immunodeficiency virus type 1 infection. PG - 1020-8 AB - Southern Africa is facing an unprecedented public health crisis due to the high prevalence of human immunodeficiency virus type 1 (HIV-1). Vaccine development and testing efforts, mainly based on elicitation of HIV-specific T cells, are under way. To understand the role of human leukocyte antigen (HLA) class II alleles in HIV pathogenesis and to facilitate HLA-based HIV-1 vaccine design, we analyzed the frequencies of HLA class II alleles within the southern African country of Botswana. Common HLA class II alleles were identified within the Botswana population through the molecular genotyping of DRB and DQB1 loci. The DRB1 allele groups DRB1*01, DRB1*02/15, DRB1*03, DRB1*11, and DRB1*13 were encountered at frequencies above 20%. Within the DQB1 locus, DQB1*06 (47.7%) was the most common allele group, followed by DQB1*03 (39.2%) and DQB1*04 (25.8%). We found that DRB1*01 was more common in HIV-negative than in HIV-positive individuals and that those who expressed DRB1*08 had lower median viral loads. We demonstrate that the frequencies of certain HLA class II alleles in this Botswana population differ substantially from those in North American populations, including African-Americans. Common allele groups within Botswana cover large percentages of other African populations and could be targeted in regional vaccine designs. FAU - Ndung'u, Thumbi AU - Ndung'u T AD - Department of Immunology and Infectious Diseases, Harvard School of Public Health, 651 Huntington Avenue, FXB-402, Boston, MA 02115, USA. FAU - Gaseitsiwe, Simani AU - Gaseitsiwe S FAU - Sepako, Enoch AU - Sepako E FAU - Doualla-Bell, Florence AU - Doualla-Bell F FAU - Peter, Trevor AU - Peter T FAU - Kim, Soyeon AU - Kim S FAU - Thior, Ibou AU - Thior I FAU - Novitsky, Vladimir A AU - Novitsky VA FAU - Essex, Max AU - Essex M LA - eng GR - D43 TW000004/TW/FIC NIH HHS/United States GR - R01 AI043255/AI/NIAID NIH HHS/United States GR - R01 AI047067/AI/NIAID NIH HHS/United States GR - R01 HD037793/HD/NICHD NIH HHS/United States PT - Journal Article PL - United States TA - Clin Diagn Lab Immunol JT - Clinical and diagnostic laboratory immunology JID - 9421292 RN - 0 (AIDS Vaccines) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DR Antigens) SB - IM MH - AIDS Vaccines MH - Black People/genetics MH - Botswana/epidemiology MH - Gene Frequency MH - HIV Infections/ethnology/*genetics/prevention & control MH - *HIV-1 MH - HLA-DQ Antigens/*genetics MH - HLA-DR Antigens/*genetics MH - Haplotypes MH - Humans MH - Prevalence MH - Viral Load PMC - PMC1235800 EDAT- 2005/09/09 09:00 MHDA- 2005/10/26 09:00 PMCR- 2005/09/01 CRDT- 2005/09/09 09:00 PHST- 2005/09/09 09:00 [pubmed] PHST- 2005/10/26 09:00 [medline] PHST- 2005/09/09 09:00 [entrez] PHST- 2005/09/01 00:00 [pmc-release] AID - 12/9/1020 [pii] AID - 0125-05 [pii] AID - 10.1128/CDLI.12.9.1020-1028.2005 [doi] PST - ppublish SO - Clin Diagn Lab Immunol. 2005 Sep;12(9):1020-8. doi: 10.1128/CDLI.12.9.1020-1028.2005.