Shorter survival of SDF1-3'A/3'A homozygotes linked to CD4+ T cell decrease in advanced human immunodeficiency virus type 1 infection.

Autor: Brambilla A; AIDS Immunopathogenesis Unit, San Raffaele Scientific Institute, Milan, Italy., Villa C, Rizzardi G, Veglia F, Ghezzi S, Lazzarin A, Cusini M, Muratori S, Santagostino E, Gringeri A, Louie LG, Sheppard HW, Poli G, Michael NL, Pantaleo G, Vicenzi E
Jazyk: angličtina
Zdroj: The Journal of infectious diseases [J Infect Dis] 2000 Jul; Vol. 182 (1), pp. 311-5. Date of Electronic Publication: 2000 Jul 06.
DOI: 10.1086/315650
Abstrakt: The SDF-1 3'A allelic polymorphism has been reported to influence either positively or negatively the progression of human immunodeficiency virus type 1 (HIV-1) disease. Therefore, the SDF-1 genotype of 729 HIV-1-infected individuals pooled from 3 distinct cohorts was determined. A statistically nonsignificant association between the SDF1-3'A/3'A genotype and accelerated disease progression was evident among seroconverters (n=319), but a striking correlation of decreased survival after either diagnosis of AIDS according to the 1993 definition or loss of CD4(+) T cell counts <200 was observed. The relative hazards for SDF1-3'A/3'A homozygotes, compared with heterozygotes and wild-type homozygotes were 2.16 (P=.0047), for time from diagnosis according to the 1993 Centers for Disease Control and Prevention AIDS case definition (AIDS-'93) to death, and 3.43 (P=.0001), for time from CD4(+) T cells <200 to death. Because no difference in survival was observed after diagnosis according to AIDS-'87, the association of the SDF1-3'A/3'A genotype with the accelerated progression of late-stage HIV-1 disease appears to be explained for the most part by the loss of CD4(+) T lymphocytes.
Databáze: MEDLINE