Exhausted T cells are associated with inefficient viral clearance, tumor immunity and response to immunotherapy. Here the authors show CD8+ T cells in the pancreatic islets have a LAG3-promoted ‘restrained’ phenotype resembling exhausted cells but maintain effector functions, and LAG3 expression limits pathology in the nonobese diabetic mouse model of type 1 diabetes.
- Stephanie Grebinoski
- Qianxia Zhang
- Dario A. A. Vignali