Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model. (PubMed, Mol Oncol)
A sonic hedgehog (SHH)-MB model, including a Gorlin syndrome patient neuroepithelial stem cell line (NES) and its tumor derivative (tNES), was used to evaluate single and combined treatments of PI3K, AKT, FGFR, and CDK4/6 inhibitors (BYL719, AZD5363, JNJ-42756493, and PD-0332991, respectively). This study illustrates that single and combined administrations of PI3K, FGFR, CDK4/6, and AKT inhibitors in a NES/tNES model have dose-dependent and additive/synergistic anti-MB activity impacting tumor growth. Their effects on tNES cells were generally more pronounced than on NES; however, the difference in proliferative capacity between the cells should be considered.