CD4 and gastric adenocarcinoma: In STAD, PRKD1 expression was positively correlated with B cells (Cor = 0.091, p = 7.94e-02), CD8+ T cells (Cor = 0.147, p = 4.71e-03), CD4+ T cells (Cor = 0.47, p = 1.71e-21), macrophages (Cor = 0.648, p = 1.77e-45), neutrophils (Cor = 0.226, p = 1.13e-05), and dendritic cells (Cor = 0.417, p = 4.45e-17); however, the correlation with B cells was not statistically significant (Figure 6B).