Radiosensitization of Primary Human Glioblastoma Stem-like Cells with Low-Dose AKT Inhibition.

ABSTRACT: Glioblastoma (GBM) is the most frequent and lethal brain cancer. The lack of early detection methods, the presence of rapidly growing tumor cells, and the high levels of recurrence due to chemo- and radioresistance make this cancer an extremely difficult disease to treat. Emerging studies have focused on inhibiting AKT activation; here, we demonstrate that in primary GBM tumor samples, full-dose inhibition of AKT activity leads to differential responses among samples in the context of cell death and self-renewal, reinforcing the notion that GBM is a heterogeneous disease. In contrast, low-dose AKT inhibition when combined with fractionation of radiation doses leads to a significant apoptosis-mediated cell death of primary patient-derived GBM cells. Therefore, low-dose-targeted therapies mi

SUBMITTER: Mehta M 

PROVIDER: S-EPMC4425617 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature