Binda et al.7 showed that EphA2 drives self-renewal and tumorigenicity in cancer stem cells derived from human glioblastoma, in which a strong signal for pS-EphA2 was detected in stem-like tumour propagating cells, but not in differentiated astrocytoma and neuroblastoma, in an ephrin-A ligand-independent manner. Here, EPHA2 is linked to astrocytoma (excluding glioblastoma).