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Updated: Aug 9, 2025

Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein
Published on: December 3, 2010
ATP-binding cassette efflux transporters and MDR in cancer
Manasi S Pote1, Rajesh N Gacche1
1Tumor Biology Laboratory, Department of Biotechnology, Savitribai Phule Pune University, Pune 411 007, MS, India.
Abstract:
Of the many multidrug resistance (MDR) mechanisms, the ATP binding cassette (ABC) transporters expelling drug molecules out of cells is a major culprit in limiting the efficacy of present-day anticancer drugs. The present review offers an updated information on structure, function, and regulatory mechanisms of major MDR related ABC transporters such as P-glycoprotein, MRP1, BCRP and effect of modulators on their functions. An attempt has been made to provide a focused information on different modulators of ABC transporters so as utilize them in clinical practice for amelioration of emerging MDR crisis in cancer treatment. Finally, the importance ABC transporters as therapeutic targets has been discussed in the light of future strategic planning for translating the ABC transporter inhibitors in clinical practice.
Insights
Multidrug resistance (MDR) in cancer is often caused by ATP binding cassette (ABC) transporters. This review details ABC transporter functions and modulators to overcome MDR and improve cancer treatment efficacy.
Area of Science:
- Biochemistry
- Pharmacology
- Oncology
Background:
- Multidrug resistance (MDR) significantly limits anticancer drug efficacy.
- ATP binding cassette (ABC) transporters are key mediators of MDR by actively effluxing drugs from cancer cells.
Purpose of the Study:
- To provide an updated review on the structure, function, and regulation of major MDR-related ABC transporters.
- To discuss the role of modulators in overcoming ABC transporter-mediated MDR.
- To highlight the potential of ABC transporters as therapeutic targets for improved cancer treatment.
Main Methods:
- Literature review of major MDR-related ABC transporters (P-glycoprotein, MRP1, BCRP).
- Analysis of the effects of various modulators on ABC transporter functions.
- Discussion of clinical implications and future strategies for ABC transporter inhibitor development.
Main Results:
- Detailed overview of the structure and function of key MDR-associated ABC transporters.
- Identification and categorization of different classes of ABC transporter modulators.
- Exploration of the therapeutic potential of targeting ABC transporters to combat drug resistance.
Conclusions:
- ABC transporters are critical targets for overcoming MDR in cancer therapy.
- Modulators of ABC transporters offer a promising strategy to enhance the effectiveness of existing anticancer drugs.
- Further research and strategic planning are needed to translate ABC transporter inhibitors into clinical practice.
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