In addition, the results showed that YTHDC2 expression was significantly positively correlated with B cell in 21 types of cancers, with CD4+ T cell in 17 types of cancers, with CD8+ T cell in 27 types of cancers, with dendritic cell in 23 types of cancers, with macrophage in 21 types of cancers and with neutrophil in 30 types of cancers, but significantly negatively correlated with CD4+ T cell in five types of cancers, with CD8+ T cell in THCA, and with dendritic cell in SARC. This evidence concerns the gene CD4 and cancer.