According to xiantao, BTG1 mRNA expression was positively related to the infiltration of CD8+ T cells, TFH, T cells, cytotoxic cells, DC, B cells, aDC, Th1 cells, iDC, TReg, macrophages, NK cells, eosinophils, mast cells and T helper cells, pDC, NK CD56dim cells and Tem, but negatively to Th17 cells in gastric cancer (Figure 5A, p < 0.05). This evidence concerns the gene CD8A and gastric cancer.