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- Title
Integrating the PD-L1 Prognostic Biomarker in Non-Muscle Invasive Bladder Cancer in Clinical Practice—A Comprehensive Review on State-of-the-Art Advances and Critical Issues.
- Authors
Sanguedolce, Francesca; Falagario, Ugo Giovanni; Zanelli, Magda; Palicelli, Andrea; Zizzo, Maurizio; Busetto, Gian Maria; Cormio, Angelo; Carrieri, Giuseppe; Cormio, Luigi
- Abstract
Bladder cancer (BC) is one of the most prevalent cancers worldwide. Non-muscle invasive bladder cancer (NMIBC), comprising the majority of initial BC presentations, requires accurate risk stratification for optimal management. This review explores the evolving role of programmed cell death ligand 1 (PD-L1) as a prognostic biomarker in NMIBC, with a particular focus on its implications in the context of Bacillus Calmette-Guérin (BCG) immunotherapy. The literature suggests a potential association between elevated PD-L1 status and adverse outcomes, resistance to BCG treatment, and disease progression. However, conflicting findings and methodological issues highlight the heterogeneity of PD-L1 assessment in NMIBC, probably due to the complex biological mechanisms that regulate the interaction between PD-L1 and the tumor microenvironment. The identification of PD-L1 as a prognostic biomarker provides ground for tailored therapeutic interventions, including immune checkpoint inhibitors (ICIs). Nevertheless, challenges such as intratumoral heterogeneity and technical issues underscore the need for standardized protocols and larger, homogeneous trials. This review contributes to the ongoing debate on the personalized management of NMIBC patients, focusing on the advances and perspectives of incorporating PD-L1 as a biomarker in this setting.
- Subjects
NON-muscle invasive bladder cancer; BLADDER cancer; PROGRAMMED death-ligand 1; BIOMARKERS; BCG immunotherapy; IMMUNE checkpoint inhibitors
- Publication
Journal of Clinical Medicine, 2024, Vol 13, Issue 8, p2182
- ISSN
2077-0383
- Publication type
Article
- DOI
10.3390/jcm13082182