Integrating COX-2, stromal PD-L1, and T-cell infiltration enhances prognostic stratification in colorectal cancer
Background: Colorectal cancer (CRC) is shaped by a complex tumor immune microenvironment in which inflammatory mediators like cyclooxygenase-2 (COX-2) and immune checkpoints such as programmed cell death ligand 1 (PD-L1) play central regulatory roles. However, the prognostic significance of these makers, individually and in combination with T-cell infiltration, remains poorly defined.Methods: We i
