Rejuvenating exhausted T cells during chronic viral infection.

Okazaki, Taku; Honjo, Tasuku · Cell · 2006

review · Level V

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Abstract

In a recent paper in Nature, show that the immunoreceptor PD-1 is upregulated by "exhausted" T cells during the chronic phase of viral infection in mice. Remarkably, blocking the interaction between PD-1 and its ligand, PD-L1, reactivates these T cells and reduces viral load.

Medical subject headings