Macrophage-derived IL-27 sustains autoreactive CD8+ cytotoxic T cells in autoimmune hepatitis
Chronic or persistent T cell activation is widely thought to culminate in T cell exhaustion, yet how autoreactive CD8+ T cells remain functionally intact despite sustained self-antigen exposure is poorly understood. In chronic infection and cancer this durability is attributed to stem-like, TCF1+ PD-1+ progenitor-exhausted (Tpex) cells that reside in lymphoid tissue and continuously replenish…
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