ABC Transporter Inhibitors in Reversing Multidrug Resistance to Chemotherapy
Haigang Cui, Anna J Zhang, Mingwei Chen
1School of Medicine, Faculty of Health, University of Tasmania. Private Bag 26 Hobart, Tasmania 7001 Australia. Johnson.liu@utas.edu.au.
Abstract:
The superfamily of human ATP-binding cassette (ABC) transporters comprises seven subfamilies (ABCA to G) with 48 members. In addition to their profound physiological and pharmacological functions, ABC transporters play important roles in instigating multidrug resistance (MDR) in cancer by mediating the efflux of many anticancer drugs, particularly, ABCB1, ABCG2 and ABCC subfamily members. Previous development of ABCB1 transporter inhibitors has provided insights into seeking novel strategies in developing new classes of compound that inhibit ABCB1 and other MDRrelated ABC transporters. We herein review and evaluate current evidence in this area, with an emphasis on experimental and investigational agents that are under preclinical and clinical tests, including tyrosine kinase inhibitors, natural products, microRNAs and novel chemical entities. New strategies targeting ABC transporters in cancer stem cells and future perspectives in this field are also discussed.
Insights
This review explores novel strategies to inhibit ATP-binding cassette (ABC) transporters, crucial in multidrug resistance (MDR) in cancer. It highlights investigational agents and new approaches targeting cancer stem cells for improved treatment outcomes.
Area of Science:
- Biochemistry
- Pharmacology
- Oncology
Background:
- Human ATP-binding cassette (ABC) transporters are vital for physiological functions.
- Certain ABC transporters, particularly ABCB1, ABCG2, and ABCC subfamily members, drive multidrug resistance (MDR) in cancer by effluxing anticancer drugs.
- Previous inhibitor development for ABCB1 offers insights for new therapeutic strategies.
Purpose of the Study:
- To review and evaluate current evidence on agents targeting ABC transporters for cancer MDR.
- To emphasize experimental and investigational agents in preclinical and clinical development.
- To discuss novel strategies targeting ABC transporters in cancer stem cells.
Main Methods:
- Literature review and evidence evaluation.
- Focus on preclinical and clinical investigational agents.
- Analysis of novel chemical entities, natural products, microRNAs, and tyrosine kinase inhibitors.
Main Results:
- Identified various classes of investigational agents targeting MDR-related ABC transporters.
- Highlighted the role of tyrosine kinase inhibitors, natural products, microRNAs, and novel chemical entities.
- Discussed emerging strategies for targeting ABC transporters in cancer stem cells.
Conclusions:
- Novel strategies and agents are under investigation to overcome ABC transporter-mediated MDR in cancer.
- Targeting ABC transporters in cancer stem cells presents a promising future direction.
- Continued research is essential for developing effective therapies against multidrug-resistant cancers.
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