Proteomic atlas reveals proteostatic collapse driving T cell exhaustion
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A multi-omic atlas of human T cell exhaustion, published in Cell, shows that dysfunctional T cells undergo broad remodeling of protein turnover and ubiquitin regulation — changes invisible to transcriptomic analysis. The study identifies the E3 ubiquitin ligase RNF166 as a regulator of T cell persistence and anti-tumor function, establishing proteostasis as a distinct and potentially targetable axis of T cell dysfunction. The work suggests that strategies aimed at protein quality control, rather than transcriptional programs alone, could improve the persistence and tumor-killing capacity of exhausted T cells. Preclinical validation and translation into immunotherapy approaches, including how RNF166 might be therapeutically manipulated in patients, remain open questions.
Written by a model from the reports · updated 3 hours ago
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- CellPickProteomic atlas of T cell exhaustion defines proteostatic collapse
Researchers built a multi-omic atlas of human T cell exhaustion and found that dysfunctional T cells undergo broad remodeling of protein turnover and ubiquitin regulation, changes not captured by transcriptomic analysis. The E3 ubiquitin ligase RNF166 regulates T cell persistence and anti-tumor function, pointing to proteostasis as a targetable axis for improving immunotherapy.
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