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Molecular and pharmacological strategies to overcome multidrug resistance
J A Shabbits1, R Krishna, L D Mayer
1Department of Advanced Therapeutics, BC Cancer Agency, Vancouver, BC, V5Z 4E6, Canada.
Abstract:
Multidrug resistance is a major obstacle to the effective treatment of cancer. Despite vast improvements in our understanding of the mechanisms of drug resistance, relatively few significant advances have been made towards effectively circumventing it in a clinical setting. The ability to modulate multidrug resistance has been complicated by the fact that many human tumors simultaneously exhibit multiple resistance mechanisms. In order to effectively overcome multidrug resistance it will be necessary to design new strategies that combine multiple modulating agents and approaches. This review provides an overview of the major causes of multidrug resistance and summarizes many of the current approaches being taken to overcome it. We also describe how liposomal drug delivery systems can be utilized to aid in achieving these goals.
Insights
Multidrug resistance hinders cancer treatment. New strategies combining agents and liposomal delivery systems are needed to overcome multiple resistance mechanisms in tumors.
Area of Science:
- Oncology
- Pharmacology
- Biomedical Engineering
Background:
- Multidrug resistance (MDR) is a significant challenge in effective cancer chemotherapy.
- Despite advances in understanding MDR mechanisms, clinical strategies to overcome it remain limited.
- Tumors often exhibit multiple, simultaneous resistance mechanisms, complicating treatment.
Purpose of the Study:
- To review the primary causes of multidrug resistance in cancer.
- To summarize current strategies for overcoming multidrug resistance.
- To explore the potential of liposomal drug delivery systems in combating MDR.
Main Methods:
- Literature review of multidrug resistance mechanisms.
- Analysis of current therapeutic approaches to circumvent MDR.
- Discussion of liposomal drug delivery systems for cancer treatment.
Main Results:
- Identified major causes of multidrug resistance.
- Summarized existing strategies to overcome MDR.
- Highlighted the role of liposomal systems in enhancing drug efficacy.
Conclusions:
- Overcoming multidrug resistance requires multifaceted strategies.
- Combining multiple modulating agents and approaches is crucial.
- Liposomal drug delivery offers a promising avenue to enhance cancer treatment efficacy by addressing MDR.