CD274 and urinary bladder carcinoma: A study examining the urogenital microbial community in bladder cancer patients revealed an increased presence of Leptotrichia, Roseomonas, and Propionibacterium, along with a reduction in certain bacterial genera, such as Prevotella and Massilia, among those exhibiting PD-L1 expression on cancerous tissues compared to those who tested negative for PD-L1 expression (76).