CD274 and neoplasm: The results revealed no significant association between PD-L1 expression in tumor cells (TCs) and overall survival (OS, HR = 0.76, 95% CI: 0.52-1.09, <i>p</i> = 0.136) or progression-free survival (PFS, HR = 0.71, 95% CI: 0.4 -1.24, <i>p</i> = 0.230).