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Polyamines and Cancer
Elisabetta Damiani1,2, Heather M Wallace3
1School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.
Abstract:
This chapter provides an overview of how the polyamine pathway has been exploited as a target for the treatment and prevention of multiple forms of cancer, since this pathway is disrupted in all cancers. It is divided into three main sections. The first explores how the polyamine pathway has been targeted for chemotherapy, starting from the first drug to target it, difluoromethylornithine (DFMO) to the large variety of polyamine analogues that have been synthesised and tested throughout the years with all their potentials and pitfalls. The second section focuses on the use of polyamines as vectors for drug delivery. Knowing that the polyamine transport system is upregulated in cancers and that polyamines naturally bind to DNA, a range of polyamine analogues and polyamine-like structures have been synthesised to target epigenetic regulators, with encouraging results. Furthermore, the use of polyamines as transport vectors to introduce toxic/bioactive/fluorescent agents more selectively to the intended target in cancer cells is discussed. The last section concentrates on chemoprevention, where the different strategies that have been undertaken to interfere with polyamine metabolism and function for antiproliferative intervention are outlined and discussed.
Insights
The polyamine pathway is a key target in cancer treatment and prevention. Exploiting this pathway offers new strategies for chemotherapy, drug delivery, and chemoprevention in various cancers.
Area of Science:
- Biochemistry
- Oncology
- Pharmacology
Background:
- The polyamine pathway is significantly disrupted in all cancer types.
- Polyamines play crucial roles in cell proliferation and are upregulated in cancerous cells.
- Targeting the polyamine pathway presents a promising strategy for cancer intervention.
Purpose of the Study:
- To provide a comprehensive overview of targeting the polyamine pathway for cancer treatment and prevention.
- To explore polyamine pathway's role in chemotherapy, drug delivery, and chemoprevention.
- To discuss the potential and challenges of various therapeutic strategies involving polyamines.
Main Methods:
- Review of chemotherapy agents targeting the polyamine pathway, including difluoromethylornithine (DFMO) and polyamine analogues.
- Investigation of polyamines as drug delivery vectors, utilizing their natural DNA binding and upregulated transport systems in cancer.
- Analysis of chemoprevention strategies focused on interfering with polyamine metabolism and function.
Main Results:
- Difluoromethylornithine (DFMO) and various polyamine analogues have been developed and tested for chemotherapy.
- Polyamines and their analogues show potential as vectors for targeted delivery of therapeutic agents to cancer cells.
- Strategies interfering with polyamine metabolism demonstrate antiproliferative effects, supporting chemoprevention.
Conclusions:
- The polyamine pathway is a versatile target for developing novel cancer therapies.
- Polyamines offer opportunities for both direct anti-cancer treatment and enhanced drug delivery systems.
- Targeting polyamine metabolism is a viable approach for cancer chemoprevention and treatment.
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