Gliomas are common primary brain tumors in adults that are for the most part lethal. Recent studies suggest that gliomas can arise from adult neural stem cells or multipotential neural progenitor cells that exist in the subventricular and subgranular zone [1]. According to the WHO, gliomas are classified into four malignancy grades (I–IV) based on their histological features; among these, grade I and II are considered low-grade gliomas with better prognosis, while glioblastoma multiforme ([GBM], malignant glioma, grade IV) has the worst prognosis. Patients diagnosed with malignant glioma display a median survival of approximately 12–15 months even with multimodal therapeutic approaches including maximal tolerated surgery, chemotherapy and radiotherapy [2]. Gliomas exhibit a strong propensity to invade healthy brain tissue by migrating through the convoluted extracellular spaces of the brain parenchyma, and eventually develop tumors at distant locations. Due to this invasive nature of the human malignant glioma, it is difficult to define borders between normal brain tissue and the tumor, which leads to incomplete surgical excision of the tumors. As such, radiotherapy or chemotherapy following surgery as combination therapies are standard of care for malignant glioma management [2]. Malignant gliomas are highly heterogeneous both genetically and pathologically, which makes the selection of diagnostic markers or targeted therapies challenging. The Cancer Genome Atlas (TCGA) network has established three essential signaling pathways that are important for malignant glioma progression including RTK/RAS/PI3K, p53 and Rb pathways [3]. Additionally, several hallmark tumorigenesis features are relevant for glioma progression, including uncontrolled proliferation, invasion, angiogenesis and chemo-radio resistance. Consequently, it is imperative to define and understand the Luni Emdad‡,1,2,3, Bin Hu1, Timothy P Kegelman1, Swadesh K Das1,2,3, Devanand Sarkar1,2,3 & Paul B Fisher*,‡,1,2,3 “The multifaceted role of AEG-1 on glioma progression implies that AEG-1 inhibition would be an appropriate end point to counter the pathogenesis of this dismal disease, particularly in conjunction with other current treatment modalities.”