We found that SYK expression was positively correlated with infiltrating levels of B cells (LGG, r = 0.748; GBM, r = 0.157), CD4+ T cells (LGG, r = 0.310; GBM, r = 0.917), macrophages (LGG, r = 0.819; GBM, r = 0.213), neutrophils (LGG, r = 0.840; GBM, r = 0.349), and dendritic cells (LGG, r = 0.890; GBM, r = 0.495) in the diffuse glioma (p < 0.05, Figure 5). Here, CD4 is linked to glioblastoma.