Through the TIMER database analysis, we found that ARID5A expression was positively correlated with the infiltration of CD4+ T cells, neutrophils and dendritic cells in GBM, and the expression level of ARID5A was positively correlated with the infiltration of B cells, CD4+ T cells, macrophages, neutrophils, and dendritic cells in LGG. This evidence concerns the gene CD4 and glioblastoma.