Fig. 1

The regulatory relationships between different miRNAs and PD-1 expression in various cancer types. Figure provides an overview of the microRNA regulation of PD-1 in melanoma, NSCLC, HCC, GC, and TNBC. It highlights the specific microRNAs involved, their targets, underlying mechanisms, and their effects on PD-1 expression. NSCLC non-small cell lung cancer, GC gastric cancer, TNBC triple-negative breast cancer, HCC hepatocellular carcinoma, RCC renal cell carcinoma