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Clinically-Relevant ABC Transporter for Anti-Cancer Drug Resistance
Huan Xiao1, Yongcheng Zheng1, Lingling Ma1
1State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, China.
Abstract:
Multiple drug resistance (MDR), referring to the resistance of cancer cells to a broad spectrum of structurally and mechanistically unrelated drugs across membranes, severely impairs the response to chemotherapy and leads to chemotherapy failure. Overexpression of ATP binding cassette (ABC) transporters is a major contributing factor resulting in MDR, which can recognize and mediate the efflux of diverse drugs from cancer cells, thereby decreasing intracellular drug concentration. Therefore, modulators of ABC transporter could be used in combination with standard chemotherapeutic anticancer drugs to augment the therapeutic efficacy. This review summarizes the recent advances of important cancer-related ABC transporters, focusing on their physiological functions, structures, and the development of new compounds as ABC transporter inhibitors.
Insights
Multiple drug resistance (MDR) in cancer hinders chemotherapy. Targeting ATP binding cassette (ABC) transporters, which cause MDR, offers a promising strategy to improve cancer treatment efficacy.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Multiple drug resistance (MDR) significantly reduces chemotherapy effectiveness in cancer treatment.
- Overexpression of ATP binding cassette (ABC) transporters is a primary mechanism driving MDR by exporting drugs from cancer cells.
Purpose of the Study:
- To review recent advancements in understanding cancer-related ABC transporters.
- To explore the physiological functions and structures of key ABC transporters.
- To highlight the development of novel ABC transporter inhibitors for combination therapy.
Main Methods:
- Literature review of recent scientific publications.
- Analysis of the roles of ABC transporters in cancer drug resistance.
- Summary of emerging ABC transporter inhibitor compounds.
Main Results:
- ABC transporters are crucial in mediating MDR by facilitating drug efflux.
- Understanding ABC transporter structure and function is key to developing effective inhibitors.
- Inhibitors of ABC transporters show potential for enhancing standard chemotherapy.
Conclusions:
- Modulating ABC transporter activity is a viable strategy to overcome MDR.
- Combination therapy with ABC transporter inhibitors and chemotherapeutics may improve patient outcomes.
- Further research into novel ABC transporter inhibitors is warranted.
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