Meanwhile, SDPR expression in lung adenocarcinoma correlated positively with infiltration of memory B cells, endothelial cells, M1 and M2 macrophages, myeloid dendritic cells, neutrophils, memory resting CD4+ T cells, CD8+ T cells, but correlated negatively with M0 macrophages, plasma B cells, and CD4+ memory activated T cells based on TIMER 2.0 website (Table 2). The gene discussed is CD4; the disease is lung adenocarcinoma.