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Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles PPAs and Related Biomaterials
Published on: June 25, 2018
Polyamine metabolism and cancer: treatments, challenges and opportunities
Robert A Casero1, Tracy Murray Stewart2, Anthony E Pegg3
1Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA. rcasero@jhmi.edu.
Abstract:
Advances in our understanding of the metabolism and molecular functions of polyamines and their alterations in cancer have led to resurgence in the interest of targeting polyamine metabolism as an anticancer strategy. Increasing knowledge of the interplay between polyamine metabolism and other cancer-driving pathways, including the PTEN-PI3K-mTOR complex 1 (mTORC1), WNT signalling and RAS pathways, suggests potential combination therapies that will have considerable clinical promise. Additionally, an expanding number of promising clinical trials with agents targeting polyamines for both therapy and prevention are ongoing. New insights into molecular mechanisms linking dysregulated polyamine catabolism and carcinogenesis suggest additional strategies that can be used for cancer prevention in at-risk individuals. In addition, polyamine blocking therapy, a strategy that combines the inhibition of polyamine biosynthesis with the simultaneous blockade of polyamine transport, can be more effective than therapies based on polyamine depletion alone and may involve an antitumour immune response. These findings open up new avenues of research into exploiting aberrant polyamine metabolism for anticancer therapy.
Insights
Targeting polyamine metabolism offers a promising anticancer strategy. New therapies, including polyamine blocking therapy, show potential for cancer treatment and prevention by exploiting cancer-driving pathways.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Polyamines play crucial roles in cellular functions, and their dysregulation is linked to cancer development.
- Recent advances highlight the intricate connections between polyamine metabolism and key cancer pathways like PTEN-PI3K-mTORC1, WNT, and RAS.
Purpose of the Study:
- To explore the potential of targeting polyamine metabolism as an anticancer strategy.
- To identify novel therapeutic and preventive approaches by understanding the interplay of polyamine metabolism with cancer-driving pathways.
Main Methods:
- Review of current research on polyamine metabolism in cancer.
- Analysis of molecular mechanisms linking polyamine catabolism to carcinogenesis.
- Evaluation of ongoing clinical trials for polyamine-targeting agents.
Main Results:
- Targeting polyamine metabolism is a revitalized anticancer strategy with significant clinical promise.
- Combination therapies involving polyamine metabolism modulators and other pathway inhibitors are being investigated.
- New insights into polyamine catabolism offer strategies for cancer prevention.
Conclusions:
- Aberrant polyamine metabolism presents a viable target for novel anticancer therapies and prevention strategies.
- Polyamine blocking therapy, combining biosynthesis inhibition and transport blockade, shows enhanced efficacy and potential for inducing antitumor immune responses.
- Further research into exploiting polyamine metabolism is crucial for developing effective cancer treatments.
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