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The therapeutic potential of targeting the PI3K pathway in pediatric brain tumors
Hazel A Rogers1, Jasper Estranero1, Keshni Gudka1
1Children's Brain Tumour Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.
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.
Insights
Targeting the phosphoinositide 3-kinase (PI3K) pathway offers a promising new strategy for treating pediatric central nervous system (CNS) tumors, the leading cause of cancer deaths in children. This review explores PI3K pathway alterations and inhibitors for pediatric CNS cancer treatment.
Area of Science:
- Oncology
- Pediatric Oncology
- Molecular Biology
Background:
- Central nervous system (CNS) tumors are the most common pediatric cancer and the leading cause of cancer-related mortality in children.
- Aberrant activation of the phosphoinositide 3-kinase (PI3K) signaling pathway is frequently observed in pediatric CNS neoplasms.
- The PI3K pathway plays a critical role in tumor growth, survival, migration, and enhancing treatment efficacy.
Purpose of the Study:
- To review genetic alterations in the PI3K pathway in pediatric CNS tumors.
- To examine the pathological role of PI3K signaling in these tumors.
- To summarize preclinical and clinical data on PI3K pathway inhibitors for pediatric CNS cancer treatment.
Main Methods:
- Review of large-scale profiling studies identifying PI3K pathway alterations.
- Analysis of preclinical data on the role of PI3K signaling.
- Summary of current clinical trial data for PI3K pathway inhibitors.
Main Results:
- The PI3K pathway is a commonly activated target in pediatric CNS tumors.
- PI3K signaling inhibition shows promise in preclinical models.
- Clinical trials are evaluating PI3K inhibitors in pediatric cancer patients.
Conclusions:
- Targeting the PI3K pathway represents a promising therapeutic strategy for pediatric CNS tumors.
- Further investigation and clinical application of PI3K inhibitors are warranted.
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