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pubmed:abstractText |
During uncontrolled HIV disease, both TNF-related apoptosis inducing ligand (TRAIL) and TRAIL receptor expression are increased. Enhanced TRAIL sensitivity is due to TRAIL receptor up-regulation induced by gp120. As a result of successful antiretroviral therapy TRAIL is down-regulated, and there are fewer TRAIL-sensitive cells. In this setting, we hypothesized that all cells that contain virus, including those productively- and latently-infected, have necessarily been "primed" by gp120 and remain TRAIL-sensitive, whereas uninfected cells remain relatively TRAIL-resistant.
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