Targeting TGFBR1 in transplantable mouse colorectal tumor organoids improves response to anti-PD-L1 therapy. Mechanistically, TGF-β abrogates clonal expansion of T effector and memory phenotypes and indirectly inhibits T cell activity by regulating immunosuppressive tumor-associated macrophage activity.
- Ana Henriques
- Maria Salvany-Celades
- Eduard Batlle