Fig. 65 (abstract P375).

a Distribution (%) of 186 patients with gastric cancer according to the expression of PD-L1 on tumor cells (TC) and tumor-infiltrating immune cells (IC). b PD-L1 expression by tumor cells (TC) and tumor-infiltrating immune cells (IC) is reduced with fewer infiltrating CD8+ T cells. c Distribution (%) of tumor microenvironment immune type based on the presence of tumor-infiltrating CD8+ T cells and PD-L1 status. Tumor-infiltrating CD8+ T cell IHC score=1-3 were considered positive. PD-L1 in tumor samples by TC1/2/3 or IC1/2/3 was considered positive