Journal article
Effect of 5,7-dimethoxyflavone on Bcrp1-mediated transport of sorafenib in vitro and in vivo in mice
European journal of pharmaceutical sciences, Vol.117, pp.27-34
05/30/2018
DOI: 10.1016/j.ejps.2018.02.004
PMID: 29425861
Abstract
Tyrosine kinase inhibitors (TKI) are a novel and target-specific class of anticancer drugs. One drawback of TKI therapy is cancer resistance to TKI. An important TKI resistance mechanism is enhanced efflux of TKI by efflux transporters, such as Breast Cancer Resistance Protein (BCRP), in cancer cells. 5,7-Dimethoxyflavone (5,7-DMF) is a natural flavonoid which was recently reported to be a potent BCRP inhibitor. In the current study, the effect of 5,7-DMF on the disposition of sorafenib, a TKI which is a good substrate of BCRP, was investigated both in vitro in efflux transporter expressing cells and in vivo in mice. 5,7-DMF significantly inhibited Bcrp1-mediated sorafenib efflux in a concentration dependent manner in MDCK/Bcrp1 cells, with EC50 value of 8.78 μM. The pharmacokinetics and tissue distribution of sorafenib (10 mg/kg) with and without co-administration of 75 mg/kg 5,7-DMF were determined. With 5,7-DMF, the AUC of sorafenib in plasma was 47,400 ± 4790 ng·h/mL, which was significantly higher than 27,300 ± 2650 ng·h/mL in sorafenib alone group. In addition, compared to sorafenib alone group, great increase in sorafenib AUC was observed in most tissues collected when sorafenib was given with 5,7-DMF. Our results indicated that 5,7-DMF may represent a novel and very promising chemosensitizing agent for BCRP-mediated anticancer drug resistance due to its low toxicity and potent BCRP inhibition.
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Details
- Title: Subtitle
- Effect of 5,7-dimethoxyflavone on Bcrp1-mediated transport of sorafenib in vitro and in vivo in mice
- Creators
- SoHyun Bae - College of Pharmacy, University of Iowa, Iowa City, IA 52242, USARonilda D'Cunha - The Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA 52242, USAJie Shao - Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL 32611, USAGuohua An - The Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA 52242, USA
- Resource Type
- Journal article
- Publication Details
- European journal of pharmaceutical sciences, Vol.117, pp.27-34
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.ejps.2018.02.004
- PMID
- 29425861
- ISSN
- 0928-0987
- eISSN
- 1879-0720
- Grant note
- DOI: 10.13039/100001797, name: PhRMA Foundation; DOI: 10.13039/100000048, name: American Cancer Society, award: IRG-77-004-34
- Language
- English
- Date published
- 05/30/2018
- Academic Unit
- Pharmaceutical Sciences and Experimental Therapeutics
- Record Identifier
- 9984065315402771
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