Oncotarget

Research Papers:

The therapeutic potential of targeting the PI3K pathway in pediatric brain tumors

Hazel A. Rogers _, Jasper Estranero, Keshni Gudka and Richard G. Grundy

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Oncotarget. 2017; 8:2083-2095. https://doi.org/10.18632/oncotarget.13781

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Abstract

Hazel A. Rogers1, Jasper Estranero1, Keshni Gudka1 and Richard G. Grundy1

1 Children’s Brain Tumour Research Centre, School of Medicine, University of Nottingham, Nottingham, UK

Correspondence to:

Hazel A. Rogers, email:

Keywords: PI3K pathway, brain tumor, pediatric, therapy, cancer

Received: September 09, 2016 Accepted: November 22, 2016 Published: December 02, 2016

Abstract

Central nervous system tumors are the most common cancer type in children and the leading cause of cancer related deaths. There is therefore a need to develop novel treatments. Large scale profiling studies have begun to identify alterations that could be targeted therapeutically, including the phosphoinositide 3-kinase (PI3K) signaling pathway, which is one of the most commonly activated pathways in cancer with many inhibitors under clinical development. PI3K signaling has been shown to be aberrantly activated in many pediatric CNS neoplasms. Pre-clinical analysis supports a role for PI3K signaling in the control of tumor growth, survival and migration as well as enhancing the cytotoxic effects of current treatments. Based on this evidence agents targeting PI3K signaling have begun to be tested in clinical trials of pediatric cancer patients. Overall, targeting the PI3K pathway presents as a promising strategy for the treatment of pediatric CNS tumors. In this review we examine the genetic alterations found in the PI3K pathway in pediatric CNS tumors and the pathological role it plays, as well as summarizing the current pre-clinical and clinical data supporting the use of PI3K pathway inhibitors for the treatment of these tumors.


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