CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.

The ecto-5'-nucleotidase (CD73) is expressed by T-cell subsets, myeloid derived suppressive cells and endothelial cells. It works in conjunction with CD39 to regulate the formation and degradation of adenosine in vivo. Adenosine has previously been shown to suppress the proliferation and cytoki...

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Main Authors: Stuart Sims, Julia Colston, Beatrice Bolinger, Vince Emery, Paul Klenerman
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0114323
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author Stuart Sims
Julia Colston
Beatrice Bolinger
Vince Emery
Paul Klenerman
author_facet Stuart Sims
Julia Colston
Beatrice Bolinger
Vince Emery
Paul Klenerman
author_sort Stuart Sims
collection DOAJ
description The ecto-5'-nucleotidase (CD73) is expressed by T-cell subsets, myeloid derived suppressive cells and endothelial cells. It works in conjunction with CD39 to regulate the formation and degradation of adenosine in vivo. Adenosine has previously been shown to suppress the proliferation and cytokine secretion of T-cells and recent evidence suggests that inhibition of CD73 has the potential to enhance T-cell directed therapies. Here we utilised a CD73 knockout mouse model to assess the suppressive ability of CD73 on CD8+ T-cell classical memory and memory "inflation", induced by murine cytomegalovirus (MCMV) infection and adenovirus immunisation. We show that CD73 is dispensable for normal CD8+ T-cell differentiation and function in both models. Thus CD73 as a suppressor of CD8+ T-cells is unlikely to play a deterministic role in the generation and functional characteristics of antiviral memory in these settings.
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institution Kabale University
issn 1932-6203
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publisher Public Library of Science (PLoS)
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series PLoS ONE
spelling doaj-art-ee85a5a5469c4f9495fe796e8b10c34d2025-08-20T03:46:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01912e11432310.1371/journal.pone.0114323CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.Stuart SimsJulia ColstonBeatrice BolingerVince EmeryPaul KlenermanThe ecto-5'-nucleotidase (CD73) is expressed by T-cell subsets, myeloid derived suppressive cells and endothelial cells. It works in conjunction with CD39 to regulate the formation and degradation of adenosine in vivo. Adenosine has previously been shown to suppress the proliferation and cytokine secretion of T-cells and recent evidence suggests that inhibition of CD73 has the potential to enhance T-cell directed therapies. Here we utilised a CD73 knockout mouse model to assess the suppressive ability of CD73 on CD8+ T-cell classical memory and memory "inflation", induced by murine cytomegalovirus (MCMV) infection and adenovirus immunisation. We show that CD73 is dispensable for normal CD8+ T-cell differentiation and function in both models. Thus CD73 as a suppressor of CD8+ T-cells is unlikely to play a deterministic role in the generation and functional characteristics of antiviral memory in these settings.https://doi.org/10.1371/journal.pone.0114323
spellingShingle Stuart Sims
Julia Colston
Beatrice Bolinger
Vince Emery
Paul Klenerman
CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
PLoS ONE
title CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
title_full CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
title_fullStr CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
title_full_unstemmed CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
title_short CD73 is dispensable for the regulation of inflationary CD8+ T-cells after murine cytomegalovirus infection and adenovirus immunisation.
title_sort cd73 is dispensable for the regulation of inflationary cd8 t cells after murine cytomegalovirus infection and adenovirus immunisation
url https://doi.org/10.1371/journal.pone.0114323
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