An inducible transcription factor activates expression of human immunodeficiency virus in T cells

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阅读量：

110

作者：

G Nabel，D Baltimore

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摘要：

Human immunodeficiency virus (HIV) production from latently infected T lymphocytes can be induced with compounds that activate the cells to secrete lymphokines 1,2 . The elements in the HIV genome which control activation are not known but expression might be regulated through a variety of DNA elements. The cis -acting control elements of the viral genome are enhancer and promoter regions. The virus also encodes trans -acting factors specified by the tat -III (refs 3-6) and art genes 7 . We have examined whether products specific to activated T cells might stimulate viral transcription by binding to regions on viral DNA. Activation of T cells, which increases HIV expression up to 50-fold, correlated with induction of a DNA binding protein indistinguishable from a recognized transcription factor, called NF-κB (ref. 8), with binding sites in the viral enhancer. Mutation of these binding sites abolished inducibility. That NF-κB acts in synergy with the viral tat -III gene product to enhance HIV expression in T cells may have implications for the pathogenesis of AIDS (acquired immune deficiency syndrome).

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DOI：

10.1038/326711a0

被引量：

4039

年份：

1987