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- W2058264985 abstract "Programmed cell death 1 receptor-ligand interaction is a major pathway often hijacked by tumors to suppress immune control. The aim of this retrospective study was to investigate the prevalence and prognostic roles of programmed cell death -ligand 1 (PD-L1) expression in small cell lung cancer (SCLC).The expression of PD-L1 was evaluated by immunohistochemical analysis in 102 specimens of SCLC. Tumors with staining in over 5% of tumor cells were scored as positive for PD-L1 expression. Survival analysis was performed using the Kaplan-Meier method.Expression of PD-L1 in tumor cells was observed in 71.6% (73 of 102) of SCLCs, and was significantly correlated with a limited disease (LD) stage. SCLC patients with PD-L1-positive tumors showed significantly longer overall survival (OS) than those with PD-L1-negative (median OS, 16.3 versus 7.3 months; p < 0.001, respectively). Multivariate analyses demonstrated that a good performance status, LD stage, and expression of PD-L1 were significantly predictive of better OS, independently of other factors. We found no relevance between PD-L1 expression and progression-free survival for first-line treatment in LD- and extensive disease-SCLC patients.In patients with SCLC, expression of PD-L1 is positively correlated with a LD stage, and is independently predictive of a favorable outcome." @default.
- W2058264985 created "2016-06-24" @default.
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- W2058264985 date "2015-03-01" @default.
- W2058264985 modified "2023-10-10" @default.
- W2058264985 title "Significance of Programmed Cell Death-Ligand 1 Expression and its Association with Survival in Patients with Small Cell Lung Cancer" @default.
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- W2058264985 doi "https://doi.org/10.1097/jto.0000000000000414" @default.
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