ARHGAP24 and astrocytoma (excluding glioblastoma): To investigate the relationship between the mTORC1/2 regulation by FilGAP and grade of glioma malignancy, we compared mTORC1/2 activities and the expression levels of FilGAP in KINGS-1 and U-87MG, grade III astrocytoma and grade IV glioblastoma, respectively.