Human primary and metastatic tumors harbor CD4+ Treg cells that can suppress antitumor immune responses. Bonnal et al. identify an intratumoral type 1 Treg-like CD4+ T cell subset that expresses the transcription factor EOMES, granzyme K and CHI3L2. This EOMES+ T cell subset correlates with disease progression but is responsive to PD-1 checkpoint blockade immunotherapy.
- Raoul J. P. Bonnal
- Grazisa Rossetti
- Massimiliano Pagani
