SRPX2 and glioblastoma: Glioblastomas exhibit different immune signatures based on the manner in which telomeres are maintained, with macrophage tumors showing high levels of interferon-induced proteins with tetratricopeptide repeats (IFIT1-3) and telomerase-positive tumors containing macrophages upregulating MARCO, CXCL12, and sushi-repeat-containing protein X-linked 2 (SRPX2) [7].