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Azathioprine Blocks the Aberrantly Elevated Lipid Metabolism and Induces Apoptosis in Glioblastoma [WES]


ABSTRACT: Glioblastoma multiforme (GBM) is the most aggressive type of brain tumor with poor survival rate and temozolomide (TMZ) has been used as the standard chemotherapy for GBM treatment. However, a large number of patients either respond poorly to TMZ and/or develop resistance after long-term use, urging the need for the development of potent drugs with novel mechanisms of action. Here, using high-throughput compound screening (HTS), we found azathioprine, an immunosuppressive medication, to be a promising therapeutic agent for TMZ-resistant GBM treatment. Through integrative genome-wide analysis and global proteomic analysis, we identified the elevated lipid metabolism due to hyperactive EGFR/AKT/SREBP-1 signaling pathway being inhibited by azathioprine. In addition, azathioprine causes ER stress-induced apoptosis. Orthotopic xenograft models injected with patient-derived GBM cells exhibits reduced tumor volumes and increased apoptosis by azathioprine. These overall data indicate that azathioprine could be a powerful therapeutic option for TMZ-resistant GBM patients.

ORGANISM(S): Homo sapiens

PROVIDER: GSE153680 | GEO | 2021/02/16

REPOSITORIES: GEO

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