PD‐1/PD‐L1 blockade rescue exhausted CD8+ T cells in gastrointestinal stromal tumours via the PI3K/Akt/mTOR signalling pathway

PD-L1 expression was an independent poor prognosis factor in GIST. PD-1/PD-L1 blockade rescued exhausted CD8+ T cells in GIST via the PI3K/Akt/mTOR signalling pathway. In GIST, PD-1/PD-L1 not only function as predictive biomarkers but also improve current therapies as treatment targets.