PMID- 25746818 OWN - NLM STAT- MEDLINE DCOM- 20160126 LR - 20160303 IS - 2374-4243 (Electronic) IS - 2374-4243 (Linking) VI - 47 IP - 7 DP - 2015 Jul TI - Rapid human immunodeficiency virus disease progression is associated with human leukocyte antigen-B homozygocity and human leukocyte antigen-B51 in a cohort from Manitoba, Canada. PG - 447-52 LID - 10.3109/00365548.2015.1007474 [doi] AB - BACKGROUND: Human immunodeficiency virus type 1 (HIV-1) infection is associated with variable rates of disease progression, influenced by the quality of CD8 T-lymphocyte response, which is determined by human leukocyte antigen (HLA) I alleles. Some individuals progress slowly and maintain viral control, while at the opposite end of the spectrum some individuals endure a faster progression with rapid CD4 decline. We sought to determine the role of HLA-B allele frequency on rapid HIV disease progression. It was hypothesized that rapid progression is associated with the presence of high allele frequency of HLA-B35 and HLA-B homozygocity. METHODS: This retrospective cohort study was conducted in the Manitoba HIV Program, Health Sciences Centre, a tertiary care facility in Winnipeg, Manitoba, Canada. We defined a set of new criteria to describe a subset of individuals with the most rapid HIV disease progression, and collected demographic, clinical, laboratory (CD4 count, viral load) and HLA data on a subset of 20 individuals meeting these criteria. RESULTS: Among those individuals who display extreme rapid progression, an overrepresentation of Aboriginal ethnicities, high frequencies of HLA-B35 and significantly higher rates of HLA-B51, as well as a very high rate of homozygocity for HLA-B alleles, were observed. CONCLUSIONS: Individuals with the most rapid disease progression have higher rates of HLA-B homozygocity, HLA-B51 alleles and higher viral loads than those with normal progression rates. This group, at the extreme end of the spectrum of progression, should be targeted for early treatment. FAU - Keynan, Yoav AU - Keynan Y AD - From the 1 Manitoba HIV Program , Winnipeg, MB , Canada. FAU - Becker, Marissa AU - Becker M FAU - Rueda, Zulma AU - Rueda Z FAU - Bresler, Kim AU - Bresler K FAU - Kasper, Ken AU - Kasper K LA - eng GR - CTNPT 004/Canadian Institutes of Health Research/Canada PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150308 PL - England TA - Infect Dis (Lond) JT - Infectious diseases (London, England) JID - 101650235 RN - 0 (HLA-B Antigens) RN - 0 (HLA-B35 Antigen) RN - 0 (HLA-B51 Antigen) SB - IM MH - CD4 Lymphocyte Count MH - Disease Progression MH - Gene Frequency MH - HIV Infections/ethnology/*genetics/*immunology/virology MH - HLA-B Antigens/*genetics MH - HLA-B35 Antigen MH - HLA-B51 Antigen/genetics/*metabolism MH - *Homozygote MH - Humans MH - Manitoba/ethnology MH - Retrospective Studies MH - Viral Load OTO - NOTNLM OT - CD4 decline OT - HIV disease progression OT - HLA homozygocity OT - HLA-B EDAT- 2015/03/10 06:00 MHDA- 2016/01/27 06:00 CRDT- 2015/03/10 06:00 PHST- 2015/03/10 06:00 [entrez] PHST- 2015/03/10 06:00 [pubmed] PHST- 2016/01/27 06:00 [medline] AID - 10.3109/00365548.2015.1007474 [doi] PST - ppublish SO - Infect Dis (Lond). 2015 Jul;47(7):447-52. doi: 10.3109/00365548.2015.1007474. Epub 2015 Mar 8.