Pro‐inflammatory factors have been described in glioma, and it is generally considered that IL‐6, IL‐8, CXCL1, CXCL10 and TGFβ2 are pro‐tumour cytokines closely related to glioma progression.5, 6, 7, 8, 9. This evidence concerns the gene TGFB2 and central nervous system cancer.