Fig. 6From: Suberoylanilide hydroxamic acid represses glioma stem-like cellsA diagram illustrates the signaling mechanisms of how SAHA may be inhibiting GSCs. Low-dose of SAHA increases both p53 protein and its phosphorylation at Ser33 via p38 activation, leading to a rise in cell cycle checkpoint activation and cellular sensecence, but high-dose of SAHA induces p53 Ser15 phosphorylation and caspase-mediated involving both the caspase-8 and the caspase-9 pathways in GSCsBack to article page