Abstract
Accumulating evidence indicates that cell division cycle 7-related protein kinase(CDC7) plays an essential role in tumor cells and it could induces cell proliferation and could be related to prognosis in multiple types of cancer. However, the biological role and molecular mechanism of CDC7 in GBM still remains unclear. In this study, we identified that CDC7 expression was enriched in glioblastoma (GBM) tumors and was functionally required for tumor proliferation and its expression was associated to poor prognosis in GBM patients. Mechanically, CDC7 induced radio resistance in GBM cells and CDC7 knock down increased cell apoptosis when combined with radiotherapy. Moreover, CDC7 regulated The DNA repair/recombination protein 54L (RAD54L) expression via regulation of RAD54L promoter activity. Therapeutically, we found that CDC7 inhibitor attenuated tumor growth both in vitro and in vivo. Collectively, CDC7 promotes proliferation, induces radio resistance in GBM, and could become a potential therapeutic target for GBM.
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