Abstract
Human immunodeficiency virus type 1 (HIV-1) infection alters the expression of host cell genes at both the mRNA and protein levels. To obtain a more comprehensive view of the global effects of HIV infection of CD4-positive T-cells at the mRNA level, we performed cDNA microarray analysis on approximately 1500 cellular cDNAs at 2 and 3 days postinfection (p.i.) with HIV-1. Host cell gene expression changed little at 2 days p.i., but at 3 days p.i. 20 cellular genes were identified as differentially expressed. Genes involved in T-cell signaling, subcellular trafficking, and transcriptional regulation, as well as several uncharacterized genes, were among those whose mRNAs were differentially regulated. These results support the hypothesis that HIV-1 infection alters expression of a broad array of cellular genes and provides a framework for future functional studies on the differentially expressed mRNA products.
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