Cited by 116Drug Transport and Resistance MechanismsAntibiotic Resistance in BacteriaPharmacogenetics and Drug Metabolism

Dacomitinib antagonizes multidrug resistance (MDR) in cancer cells by inhibiting the efflux activity of ABCB1 and ABCG2 transporters

Fan, Ying-Fang, Zhang, Wei, Zeng, Leli, Lei, Zi-Ning, Cai, Chao-Yun, Gupta, Pranav, Yang, Dong-Hua, Cui, Qingbin +3 more·2018·Cancer Letters

Abstract

The development of multidrug resistance (MDR) to chemotherapy remains a major challenge in the treatment of cancer. Numerous mechanisms have been recognized that cause MDR, but one of the most important mechanisms is overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) transporters, through which the efflux of various anticancer drugs against their concentration gradients is powered by ATP. In recent years, small molecular tyrosine kinase inhibitors (TKIs) have been developed for treatment in various human cancers overexpressing epidermal growth factor receptor (EGFR). At the same time, some TKIs have been shown to be capable of inhibiting ABC transporter-mediated MDR. Dacomitinib (PF-00299804) is a second generation, irreversible TKI, which has shown positive anticancer activities in some preclinical and clinical trials. As many TKIs are substrates or inhibitors of ABC transporters, this study investigates whether dacomitinib could interact with ABC subfamily members that mediate MDR, including ABCB1 (P-gp), ABCG2 (BCRP) and ABCC1 (MRP1). The results showed that dacomitinib at 1.0 μM significantly reversed drug resistance mediated by ABCB1 and ABCG2, but not ABCC1, doing so by antagonizing the drug efflux function in ABCB1- and ABCG2-overexpressing cell lines. The reversal effect on ABCB1-overexpressing cells is more potent than that on ABCG2-overexpressing cells. In addition, dacomitinib at reversal concentration affected neither the protein expression level nor the localization of ABCB1 and ABCG2. Therefore, the mechanisms of this modulating effect are likely to be the following: first, as an inhibitor of ABCB1 or ABCG2 transporters, dacomitinib binds to drug-substrate site in transmembrane domains (TMD) stably in a noncompetitive manner; or second, dacomitinib inhibits ATPase activity and maintains the stability of TMD conformation in a concentration-dependent manner thereby inhibiting the drug efflux function of ABCB1 or ABCG2 transporter. This study provides a useful combinational therapeutic strategy with dacomitinib and substrates of ABCB1 and/or ABCG2 transporters in ABCB1- or ABCG2-overexpressing cancers.

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Crossref · 10.1016/j.canlet.2018.01.021

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Authors
Fan, Y.-F., Zhang, W., Zeng, L., Lei, Z.-N., Cai, C.-Y., Gupta, P., Yang, D.-H., Cui, Q., Qin, Z.-D., Chen, Z.-S., & Trombetta, L. D.
Affiliations
  • Weifang Medical University (CN)
  • St. John's University (US)
Corresponding author
  • Chen, Zhe-Sheng
  • Trombetta, Louis D.
Venue
Cancer Letters
Publisher
Elsevier BV
Published
2018-05
Volume
421
Pages
186-198
ISSN
0304-3835 (ISSN-L)
OpenAlex
W2782736845
Cited by
116
References
45
Citations by year
2026: 6 · 2025: 4 · 2024: 13 · 2023: 13 · 2022: 17 · 2021: 13 · 2020: 20 · 2019: 15 · 2018: 15
FWCI
6.00
Type
journal article
Language
en
Open access
closed
Locations
  • Cancer Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Alabama at Birmingham
  • National Cancer Institute (R15CA143701)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Antibiotic Resistance in Bacteria
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
Keywords
dacomitinib, multidrug resistance, P-glycoprotein, ABCG2, MRP1, ABC transporters, drug efflux, tyrosine kinase inhibitors, epidermal growth factor receptor, drug resistance reversal, transmembrane domain, ATPase activity, non-competitive inhibition, combination therapy
MeSH terms
ATP Binding Cassette Transporter, Subfamily G, Member 2, Humans, Neoplasm Proteins, Drug Resistance, Multiple, ATP Binding Cassette Transporter, Subfamily B, Drug Resistance, Neoplasm, ATP-Binding Cassette, Sub-Family C Proteins, Cell Line, Tumor, Quinazolinones, Molecular Docking Simulation

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