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Defeating T-cell fatigue in HIV

HIV causes a chronic infection that overwhelms the immune system and leads to T-cell exhaustion. Three groups now report that a signaling molecule that dampens immune responses may tucker out the T cells (1198–1202).

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Figure 1: Persistent PD-1 expression overpowers T cells.

Kim Caesar


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Farrell, A. Defeating T-cell fatigue in HIV. Nat Med 12, 1124–1125 (2006).

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