TGFB1 and cancer: Also in cancer, numerous EV surface molecules trigger immunosuppression, including FasL, TNF, TGF‐β, CD39 and CD73 (Czernek & Duchler, 2017), by activating immune suppressor cells, modulating antigen presentation, and inducing T‐cell apoptosis (Czernek & Duchler, 2017; Pelissier Vatter et al., 2021).