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.
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| http://dx.doi.org/10.3760/cma.j.cn112151-20241030-00714 | DOI Listing |
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