Development of new drugs for glioma stem cells in using human neural stem cells as in vitro model cells for drug screening and toxicity studies

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In this research, to develop new drugs for malignant gliomas(MGs), we examined the in vitro chemosensitivity of glioma stem cells(GSCs) compared with normal neural stem cells(NSCs), which we used in vitro model cells for drug screening and toxicity studies. We isolated three GSC lines isolated from surgically removed MG tissues and examined their detailed in vitro cellular properties. In vitro chemosensitivity to drugs for MGs(ACNU, TMZ, INF-β, VCR, PCZ) or other compounds against GSCs and NSCs were examined. We found that both GSCs and NSCs showed similar chemosensitivities and several compounds showed significant cytotoxic effect to GCSs and NSCs equally. These findings will increase our knowledge about the cellular properties of GSCs and provide useful information for the development of new drugs that target GSCs.