CD4 and gastric cancer: Meanwhile, KLHL5 was closely related with level of CD8+ T cells (cor = 0.237, P = 4.19e−06), CD4+ T cells (cor = 0.459, P = 4.19e−06), and macrophage (cor = 0.534, P = 1.22e−28), neutrophil (cor = 0.297, P = 5.1e−09), and dendritic cell (cor = 0.469, P = 9.48e−22) infiltration in gastric cancer (Figure 3B).