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Tumor necrosis factor alpha activates human immunodeficiency virus type 1 through induction of nuclear factor binding to the NF-kappa B sites in the long terminal repeat
Journal article   Open access   Peer reviewed

Tumor necrosis factor alpha activates human immunodeficiency virus type 1 through induction of nuclear factor binding to the NF-kappa B sites in the long terminal repeat

E J Duh, W J Maury, T M Folks, A S Fauci and A B Rabson
Proceedings of the National Academy of Sciences - PNAS, Vol.86(15), pp.5974-5978
08/1989
DOI: 10.1073/pnas.86.15.5974
PMID: 2762307
url
https://www.ncbi.nlm.nih.gov/pmc/articles/297754View
Open Access

Abstract

Expression of human immunodeficiency virus type 1 (HIV-1) can be activated in a chronically infected T-cell line (ACH2 cells) by a cytokine, human tumor necrosis factor alpha (TNF-alpha). TNF-alpha treatment of ACH2 cells resulted in an increase in steady-state levels of HIV RNA and HIV transcription. Gel mobility shift assays demonstrated that the transcriptional activation of the HIV long terminal repeat (LTR) by TNF-alpha was associated with the induction of a nuclear factor(s) binding to the NF-kappa B sites in the LTR. Deletion of the NF-kappa B sites from the LTR eliminated activation by TNF-alpha in T cells transfected with plasmids in which the HIV LTR directed the expression of the bacterial chloramphenicol acetyltransferase gene. Thus, TNF-alpha appears to activate HIV RNA and virus production by ACH2 cells through the induction of transcription-activating factors that bind to the NF-kappa B sequences in the HIV LTR.
Cell Line HIV-1 - drug effects Humans Regulatory Sequences, Nucleic Acid DNA, Viral - metabolism Molecular Sequence Data Nuclear Proteins - metabolism DNA-Binding Proteins - genetics HIV-1 - genetics DNA-Binding Proteins - metabolism Tumor Necrosis Factor-alpha - pharmacology Genes, Viral - drug effects HIV-1 - growth & development Transfection Base Sequence Protein Binding Repetitive Sequences, Nucleic Acid DNA, Viral - genetics Virus Activation

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