Up‐regulation of HIV coreceptor CXCR4 expression in human T lymphocytes is mediated in part by a cAMP‐responsive element

Abstract excerpt

The chemokine and HIV receptor CXCR4 has been shown to play a role in chemotaxis and HIV-1 entry into T cells. Dibutyryl cAMP (DcAMP), an analog of cAMP, has been shown to increase CXCR4 cell surface expression and HIV-1 infectivity, but the molecular mechanism(s) responsible is unknown. Here we show that DcAMP treatment of purified human T lymphocytes increased transcription of CXCR4 mRNA as well as cell surface...

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