CD274 and colonic neoplasm: Conversely, the sequential association of RT and anti-PD-L1 antibody (5 × 2 Gy followed by an injection of anti-PD-L1 at day 7) failed to improve survival in mice with colon cancer (CT26) over RT alone, whereas the injection of anti-PD-L1 antibody at day 1 or day 5 after the beginning of RT did [9].