OSMR and glioblastoma: Correlation analyses of the TCGA GBM dataset showed the strongest correlation was between ANXA2 and OSMR mRNA expression (Fig. 1f and Additional file 5: Supplementary Fig. S3), and this was confirmed by similar analyses of GBM datasets from the Repository for Molecular Brain Neoplasia Data (REMBRANDT) and Okayama University (Fig. 1g and h).