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Abstract B21: The selective ATR inhibitor VX-970 enhances the therapeutic effects of standards of care in glioblastoma

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Glioblastoma (GBM) represents one of the most aggressive cancer types with the vast majority of patients succumbing to disease within the first five years. This dire prognosis reflects the limited… Click to show full abstract

Glioblastoma (GBM) represents one of the most aggressive cancer types with the vast majority of patients succumbing to disease within the first five years. This dire prognosis reflects the limited efficacy of our frontline therapies which include radiation therapy and temozolomide (TMZ) chemotherapy. The cellular response to these therapies is critically mediated by DNA damage response signaling networks that are regulated by Ataxia Telangiectasia Mutated (ATM) and Ataxia Telangiectasia And Rad3-Related Protein (ATR). Preliminary studies from our laboratory suggest the ATR inhibitor VX-970 has single agent efficacy in both established and primary GBM cell lines. Moreover, combined treatment with TMZ demonstrated therapeutic responses that, following regression analysis, were deemed synergistic (p Citation Format: Danielle Burgenske, Ann Mladek, Jann Sarkaria. The selective ATR inhibitor VX-970 enhances the therapeutic effects of standards of care in glioblastoma [abstract]. In: Proceedings of the AACR Special Conference on DNA Repair: Tumor Development and Therapeutic Response; 2016 Nov 2-5; Montreal, QC, Canada. Philadelphia (PA): AACR; Mol Cancer Res 2017;15(4_Suppl):Abstract nr B21.

Keywords: selective atr; atr inhibitor; glioblastoma; inhibitor 970

Journal Title: Molecular Cancer Research
Year Published: 2017

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