CD274 and neoplasm: Association between αVlow tumours and better PFS of anti-PD-(L)1-treated patients was then investigated in a second cohort (cohort 2) of 51 NSCLC (Supplementary Table 2 and Supplementary Fig. 1b) alone and pooled with cohort 1 (Supplementary Fig. 1c) because of the low number (n = 9) of αVhigh tumours in cohort 2.