Serum levels of osteopontin were reported to be correlated with a poor prognosis in patients with GBM (Sreekanthreddy et al., 2010), and miRNA‐326/miRNA‐130a was revealed to be highly associated with the long‐term survival of patients with GBM (Qiu et al., 2013). Here, SPP1 is linked to glioblastoma.