
Immune checkpoint inhibitors targeting PD-1/PD-L1 are gradually being applied in the treatment of advanced urinary system tumors. Immunohistochemical analysis of PD-L1 expression is the most popular method for screening suitable patients for immunotherapy and predicting therapeutic efficacy. The current application status of PD-L1 detection for urinary system tumors (mainly urothelial carcinoma), methods of the different antibody tests and the precautions, challenges and solutions in the interpretation of immunostaining were summarized in this review.
Urologic Neoplasms, Carcinoma, Transitional Cell, Urinary Bladder Neoplasms, Biomarkers, Tumor, Humans, Immunotherapy, Immunohistochemistry, Immune Checkpoint Inhibitors, B7-H1 Antigen
Urologic Neoplasms, Carcinoma, Transitional Cell, Urinary Bladder Neoplasms, Biomarkers, Tumor, Humans, Immunotherapy, Immunohistochemistry, Immune Checkpoint Inhibitors, B7-H1 Antigen
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