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PI3K pathway in prostate cancer: All resistant roads lead to PI3K
Soonbum Park1, Young Sik Kim1, Davis Yeon Kim1
1Department of Physiology and Biomedical Sciences, Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Abstract:
The phosphoinositide 3-kinase (PI3K) pathway integrates multifarious environmental cues to regulate cell survival, growth, and metabolism. Hyperactivation of the PI3K pathway increases biological fitness by offering a high degree of adaptability to and resilience against diverse perturbations, thus conferring survival benefits on premalignant and transformed cells. In prostate cancer, the PI3K pathway is aberrantly activated by various genetic and epigenetic alterations and its hyperactivation is closely associated with a poor clinical outcome. In this review, we discuss the challenges encountered with clinically effective therapies targeting the PI3K pathway in prostate cancer, highlighting the clinical importance of combination therapies. In particular, we address how prostate cancer cells utilize the PI3K pathway for the development of resistance to a broad range of anticancer treatments. In addition, we describe the molecular mechanisms by which prostate cancer cells become resistant to PI3K pathway inhibitors. This review will be helpful in translating biological knowledge into therapeutic strategies for the treatment of prostate cancer and provide insight into overcoming therapeutic challenges associated with prostate cancer.
Insights
The phosphoinositide 3-kinase (PI3K) pathway promotes cancer cell survival and resistance to treatment. Understanding PI3K
Area of Science:
- Oncology
- Molecular Biology
- Cell Signaling
Background:
- The phosphoinositide 3-kinase (PI3K) pathway is crucial for cell survival, growth, and metabolism.
- Aberrant PI3K pathway activation is common in prostate cancer, correlating with poor clinical outcomes.
- Hyperactivation of the PI3K pathway enhances cancer cell adaptability and resilience.
Purpose of the Study:
- To review challenges in targeting the PI3K pathway in prostate cancer.
- To highlight the role of the PI3K pathway in treatment resistance.
- To discuss strategies for overcoming therapeutic resistance.
Main Methods:
- Literature review of PI3K pathway in prostate cancer.
- Analysis of genetic and epigenetic alterations affecting the PI3K pathway.
- Examination of molecular mechanisms of resistance to PI3K inhibitors.
Main Results:
- Prostate cancer cells exploit the PI3K pathway to develop resistance to various anticancer treatments.
- Specific molecular mechanisms contribute to resistance against PI3K pathway inhibitors.
- Combination therapies show promise for overcoming resistance.
Conclusions:
- Targeting the PI3K pathway in prostate cancer presents significant therapeutic challenges.
- Understanding resistance mechanisms is vital for developing effective treatment strategies.
- Translating biological insights into clinical therapies is essential for improving patient outcomes.
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