CNPY4 and neoplasm: In LGG, the logarithm of CNPY4 expression was positively correlated with the infiltration levels of B cells (Partial Cor = 0.3520) CD4+ T cells (Partial Cor = 0.406), macrophages (Partial Cor = 0.417), neutrophils (Partial Cor = 0.351), and dendritic cells (Partial Cor = 0.445) in tumor tissues (P < .05) (Fig. 5A).