The expression of 17 markers (Th1 cells, macrophages, neutrophils, Tem, DC, NK cells, iDC, mast cells, NK CD56dim cells, pDC, CD8+ T cells, eosinophils, cytotoxic cells, Tfh, aDC, Treg, and T cells) had significant positive correlations with SERPINE1 expression in STAD, and Th17 cells expression was significantly negatively associated with SERPINE1 expression in STAD (Figure 10D and Supplementary Table S4). This evidence concerns the gene SERPINE1 and gastric adenocarcinoma.