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Immunofluorescence assays showed that the T1 expressed neural stem cell markers nestin (A) and CD133 (B) , but Hela cells were negative (C, D). Intracranial tumorigenicity of T1 cells in immunodeficient nude mice (E, HE staining). Some of these tumor cells were immunoreactive for neural stem cell markers Nestin (F) and CD133 (G). Nuclei were detected using the DAPI staining showed in merged image.
