Abstract:Background: Programmed death ligand 1 (PD-L1), a potential target for immune checkpoint inhibitors, has been considered a novel biomarker for prognosis in various solid tumors. However, scant data is available on the role of PD-L1 expression in advanced gallbladder cancer (GBC). The aim of this study is to evaluate prognostic significance of expression of PD-L1 in advanced GBC and provide evidence for PD-L1 targeted therapy in the future. Methods: We investigated the expression of PD-L1 in 192 advanced GBC cas… Show more
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