CD274 and neoplasm: Tumour growth was significantly inhibited by NIR-PIT treatment in mice receiving 100 μg of anti-PD-L1-IR700 i.v. and 50 J/cm2 NIR light 24 h post injection and 100 J/cm2 48 h post injection compared with the other control groups (no treatment; APC i.v. only; NIR light only).