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CD39 Expression Identifies Terminally Exhausted CD8 T Cells
Chronic viral infection induces an acquired state of T cell dysfunction known as exhaustion. Discovering surface markers of exhausted T cells is important for both to identify exhausted T cells as well as to develop potential therapies. We report that the ectonucleotidase CD39 is expressed by T cells specific for chronic viral infections in humans and a mouse model, but is rare in T cells following clearance of acute infections. In the mouse model of chronic viral infection, CD39 demarcates a subpopulation of dysfunctional, exhausted CD8+ T cells with the phenotype of irreversible exhaustion. CD39 expression therefore identifies terminal CD8+ T cell exhaustion in mice and humans, and implicates the purinergic pathway in the regulation of exhaustion.
Vyšlo v časopise: CD39 Expression Identifies Terminally Exhausted CD8 T Cells. PLoS Pathog 11(10): e32767. doi:10.1371/journal.ppat.1005177
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.ppat.1005177Souhrn
Chronic viral infection induces an acquired state of T cell dysfunction known as exhaustion. Discovering surface markers of exhausted T cells is important for both to identify exhausted T cells as well as to develop potential therapies. We report that the ectonucleotidase CD39 is expressed by T cells specific for chronic viral infections in humans and a mouse model, but is rare in T cells following clearance of acute infections. In the mouse model of chronic viral infection, CD39 demarcates a subpopulation of dysfunctional, exhausted CD8+ T cells with the phenotype of irreversible exhaustion. CD39 expression therefore identifies terminal CD8+ T cell exhaustion in mice and humans, and implicates the purinergic pathway in the regulation of exhaustion.
Zdroje
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