CD8A and gastric cancer: Moreover, based on the analysis of the TCGA cohort, the expression levels of IFN-stimulated genes and STING downstream T-cell attracting chemokines, including CXCL9/10/11 and CCL5, were significantly higher in MSI-H GC compared to other subtypes of GC with EBV (−), suggesting that the activation of STING signaling and its downstream T-cell attracting chemokines might contribute to the high infiltration of CD8+ T cells in dMMR/MSI-H GC.