Henry Ford Hospital 1 article published in JoVE Medicine Optimization of High Grade Glioma Cell Culture from Surgical Specimens for Use in Clinically Relevant Animal Models and 3D Immunochemistry Laura A. Hasselbach1, Susan M. Irtenkauf1, Nancy W. Lemke1, Kevin K. Nelson1, Artem D. Berezovsky1, Enoch T. Carlton1, Andrea D. Transou1, Tom Mikkelsen1, Ana C. deCarvalho1 1Department of Neurosurgery, Henry Ford Hospital Protocol for propagation of dissociated high grade glioma surgical specimens in serum-free neurosphere medium to select for cells with cancer stem cell phenotype. For specimens that fail to grow as neurospheres, an alternative protocol is suggested. A paraffin embedding technique for maintaining the 3D neurosphere architecture for immunocytochemistry is described.