• Mark J Knights, Stuart Kyle, and Azzam Ismail.
• Leeds School of Medicine, University of Leeds, Leeds, UK. um09mjk@leeds.ac.uk
• Brain Pathol. 2012 Sep 1; 22 (5): 592-606.

AbstractGlioblastoma is the most common type of primary brain tumor in adults and is among the most lethal and least successfully treated solid tumors. Recently, research into the area of stem cells in brain tumors has gained momentum. However, due to the relatively new and novel hypothesis that a subpopulation of cancer cells in each malignancy has the potential for tumor initiation and repopulation, the data in this area of research are still in its infancy. This review article is aimed at attempting to bring together research carried out so far in order to build an understanding of glioblastoma stem cells (GSCs). Initially, we consider GSCs at a morphological and cellular level, and then discuss important cell markers, signaling pathways and genetics. Furthermore, we highlight the difficulties associated with what some of the evidence indicates and what collectively the studies contribute to further defining the interpretation of GSCs.© 2012 The Authors; Brain Pathology © 2012 International Society of Neuropathology.

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