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Infectious Disease: HIV AIDS
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Exosomes from uninfected cells activate transcription of latent HIV-1 Microbiology
In this study, we asked whether exosomes from uninfected cells could activate latent HIV-1 in infected cells. We observed that irrespective of combination antiretroviral therapy, both short- and long-length viral transcripts were increased in wild-type HIV-1–infected cells exposed to purified exosomes from uninfected cells. A search for a possible mechanism for this finding revealed that the exosomes increase RNA polymerase II loading onto the HIV-1 promoter in the infected cells. These viral transcripts, which include trans-activation response (TAR) RNA and a novel RNA that we termed TAR-gag, can then be packaged into e...
Source: Journal of Biological Chemistry - July 14, 2017 Category: Chemistry Authors: Robert A. Barclay, Angela Schwab, Catherine DeMarino, Yao Akpamagbo, Benjamin Lepene, Seble Kassaye, Sergey Iordanskiy, Fatah Kashanchi Tags: Microbiology Source Type: research
