Usage Information
Citation Information: JCI Insight. 2019;4(3):e125442. https://doi.org/10.1172/jci.insight.125442.
Abstract
Recent guidelines recommend antiretroviral therapy (ART) to be administered as early as possible during HIV-1 infection. Few studies addressed the immunological benefit of commencing ART during the acute phase of infection. We used mass cytometry to characterize blood CD4+ T cells from HIV-1–infected patients who initiated ART during acute or chronic phase of infection. Using this method, we analyzed a large number of markers on millions of individual immune cells. The results revealed that CD4+ T cell clusters with high expression of CD27, CD28, CD127, and CD44, whose function involves T cell migration to inflamed tissues and survival, are more abundant in healthy controls and patients initiating ART during the acute phase; on the contrary, CD4+ T cell clusters in patients initiating ART during the chronic phase had reduced expression of these markers. The results are suggestive of a better preserved immune function in HIV-1–infected patients initiating ART during acute infection.
Authors
Yonas Bekele, Tadepally Lakshmikanth, Yang Chen, Jaromir Mikes, Aikaterini Nasi, Stefan Petkov, Bo Hejdeman, Petter Brodin, Francesca Chiodi
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