An Optimized Protocol for In Vivo Analysis of Tumor Cell Division in a Sleeping Beauty-Mediated Mouse Glioma Model

Summary Malignant gliomas are the most common and aggressive primary brain tumor in adults, and high mitotic rates are associated with their malignancy. Gliomas were modeled in mice using the Sleeping Beauty system to encode genetic lesions recapitulating the human disease. The presented workflow allows the study of the proliferation of glioma cells in vivo, enabling the identification of different phases of the cell cycle, with the advantage that 5-ethynyl-2′-deoxyuridine staining does not involve denaturation steps and samples do not require histological processing. For complete details on the use and execution of this protocol, please refer to Nunez et al. (2019) .