The PIT group showed reduced tumor luciferase activity, as indicated via BLI on day 1, compared with that in the three control groups: untreated mice (control), mice receiving control F(ab′)2-IR700 with NIR light, and mice receiving anti-PD-L1-F(ab′)2-IR700 once without irradiation (figure 2C). Here, CD274 is linked to neoplasm.