CD274 and non-small cell lung carcinoma: [206] analyzed the bronchial microbiome composition of NSCLC patients, revealing that the relative abundance of Firmicutes, Bacteroidetes, and Veillonella was significantly higher in high PD‐L1 expression and immunotherapy‐responsive groups compared to low PD‐L1 expression and nonresponsive groups, with Veillonella being particularly predominant in both high PD‐L1 expression and immunotherapy‐responsive patient populations, suggesting these specific bacterial taxa may serve as novel biomarkers for predicting anti‐PD‐L1 immunotherapy efficacy.