Different strategies to overcome multidrug resistance in cancer
Manju Saraswathy1, Shaoqin Gong
1Department of Biomedical Engineering and Wisconsin Institutes for Discovery, University of Wisconsin-Madison, WI 53715, USA.
Abstract:
The risk of acquisition of resistance to chemotherapy remains a major hurdle in the management of various types of cancer patients. Several cellular and noncellular mechanisms are involved in developing both intrinsic and acquired resistance in cancer cells toward chemotherapy. This review covers the various multidrug resistance (MDR) mechanisms observed in cancer cells as well as the various strategies developed to overcome these MDR mechanisms. Extensive studies have been conducted during the last several decades to enhance the efficacy of chemotherapy by suppressing or evading these MDR mechanisms including the use of new anticancer drugs that could escape from the efflux reaction, MDR modulators or chemosensitizers, multifunctional nanocarriers, and RNA interference (RNAi) therapy.
Insights
Chemotherapy resistance is a major challenge in cancer treatment. This review explores multidrug resistance (MDR) mechanisms and strategies like novel drugs and RNA interference (RNAi) therapy to overcome them.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Chemotherapy resistance poses a significant obstacle in treating cancer patients.
- Both intrinsic and acquired resistance mechanisms in cancer cells contribute to treatment failure.
Purpose of the Study:
- To review the diverse multidrug resistance (MDR) mechanisms in cancer cells.
- To discuss current and emerging strategies for overcoming MDR in chemotherapy.
Main Methods:
- Comprehensive literature review of studies on cancer multidrug resistance.
- Analysis of cellular and noncellular resistance mechanisms.
- Evaluation of therapeutic strategies to circumvent MDR.
Main Results:
- Multiple MDR mechanisms, including drug efflux, are identified in cancer cells.
- Various approaches are being developed to enhance chemotherapy efficacy.
- Strategies include novel anticancer drugs, MDR modulators, nanocarriers, and RNA interference (RNAi) therapy.
Conclusions:
- Understanding MDR mechanisms is crucial for effective cancer management.
- Developing strategies to overcome MDR is essential for improving patient outcomes.
- Combination therapies and novel drug delivery systems show promise in combating chemotherapy resistance.
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