51
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Synthesis and anti Methicillin resistant Staphylococcus aureus activity of substituted chalcones alone and in combination with non-beta-lactam antibiotics. Bioorg Med Chem Lett 2012; 22:4555-60. [DOI: 10.1016/j.bmcl.2012.05.112] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 05/23/2012] [Accepted: 05/30/2012] [Indexed: 11/24/2022]
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52
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Zhong Y, Zhang F, Sun Z, Zhou W, Li Z, You Q, Guo Q, Hu R. Drug resistance associates with activation of Nrf2 in
MCF
‐7/
DOX
cells, and wogonin reverses it by down‐regulating Nrf2‐mediated cellular defense response. Mol Carcinog 2012; 52:824-34. [DOI: 10.1002/mc.21921] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 04/10/2012] [Indexed: 12/14/2022]
Affiliation(s)
- Yan Zhong
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
| | - Fengyi Zhang
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
| | - Zhongying Sun
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
| | - Wei Zhou
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
| | - Zhi‐Yu Li
- Department of Medicinal ChemistryChina Pharmaceutical UniversityJiangsuChina
| | - Qi‐Dong You
- Department of Medicinal ChemistryChina Pharmaceutical UniversityJiangsuChina
| | - Qing‐Long Guo
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
| | - Rong Hu
- State Key Laboratory of Natural MedicinesChina Pharmaceutical UniversityJiangsuChina
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53
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Valdameri G, Gauthier C, Terreux R, Kachadourian R, Day BJ, Winnischofer SMB, Rocha MEM, Frachet V, Ronot X, Di Pietro A, Boumendjel A. Investigation of chalcones as selective inhibitors of the breast cancer resistance protein: critical role of methoxylation in both inhibition potency and cytotoxicity. J Med Chem 2012; 55:3193-200. [PMID: 22449016 PMCID: PMC3983950 DOI: 10.1021/jm2016528] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ABCG2 plays a major role in anticancer-drug efflux and related tumor multidrug resistance. Potent and selective ABCG2 inhibitors with low cytotoxicity were investigated among a series of 44 chalcones and analogues (1,3-diarylpropenones), by evaluating their inhibitory effect on the transport of mitoxantrone, a known ABCG2 substrate. Six compounds producing complete inhibition with IC(50) values below 0.5 μM and high selectivity for ABCG2 were identified. The number and position of methoxy substituents appeared to be critical for both inhibition and cytotoxicity. The best compounds, with potent inhibition and low toxicity, contained an N-methyl-1-indolyl (compound 38) or a 6'-hydroxyl-2',4'-dimethoxy-1-phenyl (compound 27) moiety (A-ring) and two methoxy groups at positions 2 and 6 of the 3-phenyl moiety (B-ring). Methoxy substitution contributed to inhibition at positions 3 and 5, but had a negative effect at position 4. Finally, methoxy groups at positions 3, 4, and 5 of the B-ring markedly increased cytotoxicity and, therefore, should be avoided.
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Affiliation(s)
- Glaucio Valdameri
- Equipe Labellisée Ligue 2012, BMSSI UMR 5086 CNRS/Université Lyon 1, Institut de Biologie et Chimie des Protéines, Lyon, France
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Charlotte Gauthier
- Equipe Labellisée Ligue 2012, BMSSI UMR 5086 CNRS/Université Lyon 1, Institut de Biologie et Chimie des Protéines, Lyon, France
| | - Raphaël Terreux
- Equipe Bioinformatique: structures et interactions, BMSSI UMR 5086 CNRS/Université Lyon 1, Institut de Biologie et Chimie des Protéines, Lyon, France
| | - Rémy Kachadourian
- Department of Medicine, National Jewish Health, Denver Colorado 80206, United States
| | - Brian J. Day
- Department of Medicine, National Jewish Health, Denver Colorado 80206, United States
| | - Sheila M. B. Winnischofer
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Maria E. M. Rocha
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Véronique Frachet
- AGing Imaging Modeling, FRE 3405, Université Joseph Fourier, CNRS, EPHE, Faculté de Médecine, La Tronche, France
| | - Xavier Ronot
- AGing Imaging Modeling, FRE 3405, Université Joseph Fourier, CNRS, EPHE, Faculté de Médecine, La Tronche, France
| | - Attilio Di Pietro
- Equipe Labellisée Ligue 2012, BMSSI UMR 5086 CNRS/Université Lyon 1, Institut de Biologie et Chimie des Protéines, Lyon, France
| | - Ahcène Boumendjel
- Université Joseph Fourier—Grenoble/CNRS, UMR 5063, Département de Pharmacochimie Moléculaire, Grenoble, France
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54
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Sim HM, Wu CP, Ambudkar SV, Go ML. In vitro and in vivo modulation of ABCG2 by functionalized aurones and structurally related analogs. Biochem Pharmacol 2011; 82:1562-71. [PMID: 21855533 PMCID: PMC3733550 DOI: 10.1016/j.bcp.2011.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/01/2011] [Accepted: 08/02/2011] [Indexed: 01/28/2023]
Abstract
Over-expression of ABCG2 is linked to multidrug resistance in cancer chemotherapy. We have previously shown that functionalized aurones effectively reduced the efflux of pheophorbide A (an ABCG2 substrate) from ABCG2 over-expressing MDA-MB-231/R ("R") cells. In the present report, we investigated the functional relevance of this observation and the mechanisms by which it occurs. Aurones and related analogs were investigated for re-sensitization of R cells to mitoxantrone (MX, a chemotherapeutic substrate of ABCG2) in cell-based assays, accumulation of intracellular MX by cell cytometry, interaction with ABCG2 by biochemical assays and in vivo efficacy in MX resistant nude mice xenografts. We found that methoxylated aurones interacted directly with ABCG2 to inhibit efflux activity, possibly by competing for occupancy of one of the substrate binding sites on ABCG2. The present evidence suggests that they are not transported by ABCG2 although they stimulate ABCG2-ATPase activity. Alteration of ABCG2 protein expression was also discounted. One member was found to re-sensitize R cells to MX in both in vitro and in vivo settings. Our study identified methoxylated aurones as promising compounds associated with low toxicities and potent modulatory effects on the ABCG2 efflux protein. Thus, they warrant further scrutiny as lead templates for development as reversal agents of multidrug resistance.
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Affiliation(s)
- Hong-May Sim
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543
| | - Chung-Pu Wu
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, 37, Convent Drive, Bethesda, Maryland 20892
| | - Suresh V. Ambudkar
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, 37, Convent Drive, Bethesda, Maryland 20892
| | - Mei-Lin Go
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543
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55
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Wei DD, Wang JS, Kong LY. Reversal Effects of Components from the Fruits of Illicium simonsii on Human Adriamycin-resistant MCF-7 and 5-Fluorouracil-resistant Bel7402 Cells. Phytother Res 2011; 26:562-7. [DOI: 10.1002/ptr.3599] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Revised: 04/06/2011] [Accepted: 05/24/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Dan-Dan Wei
- Department of Natural Medicinal Chemistry; China Pharmaceutical University; Nanjing; PR China
| | - Jun-Song Wang
- School of Traditional Chinese Pharmacy; China Pharmaceutical University; Nanjing; PR China
| | - Ling-Yi Kong
- Department of Natural Medicinal Chemistry; China Pharmaceutical University; Nanjing; PR China
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56
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Wu CP, Ohnuma S, Ambudkar SV. Discovering natural product modulators to overcome multidrug resistance in cancer chemotherapy. Curr Pharm Biotechnol 2011; 12:609-20. [PMID: 21118092 DOI: 10.2174/138920111795163887] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Accepted: 04/12/2010] [Indexed: 12/19/2022]
Abstract
Multidrug resistance caused by the overexpression of ABC drug transporters is a major obstacle in clinical cancer chemotherapy. For several years, it appeared that direct inhibition of ABC transporters would be the cheapest and most efficient way to combat this problem. Unfortunately, progress in finding a potent, selective inhibitor to modulate ABC transporters and restore drug sensitivity in multidrug-resistant cancer cells has been slow and challenging. Candidate drugs should ideally be selective, potent and relatively non-toxic. Many researchers in recent years have turned their attention to utilizing natural products as the building blocks for the development of the next generation of inhibitors, especially after the disappointing results obtained from inhibitors of the first three generations at the clinical trial stage. The first step is to discover natural substances (distinct from the first three generation inhibitors) that are potent, selective and relatively non-toxic in order to be used clinically. Here, we present a brief overview of the prospect of using natural products to modulate the function of ABC drug transporters clinically and their impact on human physiology and pharmacology.
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Affiliation(s)
- Chung-Pu Wu
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
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57
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Differential effect of P-gp and MRP2 on cellular translocation of gemifloxacin. Int J Pharm 2011; 420:26-33. [PMID: 21864659 DOI: 10.1016/j.ijpharm.2011.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 07/14/2011] [Accepted: 08/08/2011] [Indexed: 02/07/2023]
Abstract
Fluoroquinolones are broad spectrum antibiotics widely indicated in the treatment of both human and animal diseases. The primary objective of this study was to assess short and long term affinities of gemifloxacin towards efflux transporters (P-gp, MRP2) and nuclear hormone receptor (PXR). Uptake and dose dependent inhibition studies were performed with [(14)C] erythromycin (0.25 μCi/ml) on MDCKII-MDR1 and MDCKII-MRP2 cells. Cellular accumulation of calcein-AM was further determined to confirm the affinity of gemifloxacin towards P-gp and MRP2. Transport studies were conducted to determine bi-directional permeability and to assess efflux ratio of gemifloxacin. LS-180 cells were treated with three different concentrations of gemifloxacin for 72 h and real-time PCR analysis was performed to study the quantitative gene expression levels of PXR, MDR1 and MRP2. Further, [(14)C] erythromycin uptake was also performed on LS-180 treated cells to better delineate the functional activity of efflux transporters. Results from our study suggest that gemifloxacin may be a substrate of both the efflux transporters studied. This compound inhibited both P-gp and MRP2 mediated efflux of [(14)C] erythromycin in a dose dependent manner with IC(50) values of 123 ± 2 μM and 16 ± 2 μM, respectively. The efflux ratio of [(14)C] erythromycin lowered from 3.56 to 1.63 on MDCKII-MDR1 cells and 4.93 to 1.26 on MDCKII-MRP2 cells. This significant reduction in efflux ratio further confirmed the substrate specificity of gemifloxacin towards P-gp and MRP2. Long term exposure significantly induced the expression of PXR (18 fold), MDR1 (6 fold) and MRP2 (6 fold). A decrease (20%) in [(14)C] erythromycin uptake further confirmed the elevated functional activity of P-gp and MRP2. In conclusion, our studies demonstrated that gemifloxacin is effluxed by both P-gp and MRP2. Long term exposure induced their gene expression and functional activity. This substrate specificity of gemifloxacin towards these efflux transporters may be one of the major factors accounting for low oral bioavailability (71%). Better understanding of these mechanistic interactions may aid in the development of newer strategies to achieve adequate therapeutic levels and higher bioavailability.
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58
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Li Y, Revalde JL, Reid G, Paxton JW. Interactions of dietary phytochemicals with ABC transporters: possible implications for drug disposition and multidrug resistance in cancer. Drug Metab Rev 2011; 42:590-611. [PMID: 20433315 DOI: 10.3109/03602531003758690] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Common foods, such as fruits and vegetables, contain a large variety of secondary metabolites known as phytochemicals, many of which have been associated with health benefits. However, there is a limited knowledge of the processes by which these, mainly charged, phytochemicals (and/or their metabolites) are absorbed into the body, reach their biological target, and how they are eliminated. Recent studies have indicated that some of these phytochemicals are substrates and modulators of specific members of the superfamily of ABC transporting proteins. In this review, we present the reported interactions between the different classes of phytochemicals and ABC transporters and the mechanism by which they modulate the activity of these transporters. We also discuss the implications that such interactions may have on the pharmacokinetics of xenobiotics and the possible role of phytochemicals in the reversal of multidrug resistance in cancer chemotherapy.
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Affiliation(s)
- Yan Li
- Department of Pharmacology and Clinical Pharmacology, School of Medical Sciences, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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59
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Kothandan G, Gadhe CG, Madhavan T, Choi CH, Cho SJ. Docking and 3D-QSAR (quantitative structure activity relationship) studies of flavones, the potent inhibitors of p-glycoprotein targeting the nucleotide binding domain. Eur J Med Chem 2011; 46:4078-88. [PMID: 21723648 DOI: 10.1016/j.ejmech.2011.06.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 06/03/2011] [Accepted: 06/07/2011] [Indexed: 10/18/2022]
Abstract
In order to explore the interactions between flavones and P-gp, in silico methodologies such as docking and 3D-QSAR were performed. CoMFA and CoMSIA analyses were done using ligand based and receptor guided alignment schemes. Validation statistics include leave-one-out cross-validated R(2) (q(2)), internal prediction parameter by progressive scrambling (Q(*2)), external prediction with test set. They show that models derived from this study are quite robust. Ligand based CoMFA (q(2) = 0.747, Q(*2) = 0.639, r(pred)(2)=0.802) and CoMSIA model (q(2) = 0.810, Q(*2) = 0.676, r(pred)(2)=0.785) were developed using atom by atom matching. Receptor guided CoMFA (q(2) = 0.712, Q(*2) = 0.497, r(pred)(2) = 0.841) and for CoMSIA (q(2) = 0.805, Q(*2) = 0.589, r(pred)(2) = 0.937) models were developed by docking of highly active flavone into the proposed NBD (nucleotide binding domain) of P-gp. The 3D-QSAR models generated here predicted that hydrophobic and steric parameters are important for activity toward P-gp. Our studies indicate the important amino acid in NBD crucial for binding in accordance with the previous results. This site forms a hydrophobic site. Since flavonoids have potential without toxicity, we propose to inspect this hydrophobic site including Asn1043 and Asp1049 should be considered for future inhibitor design.
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Affiliation(s)
- Gugan Kothandan
- Department of Bio-New Drug Development, College of Medicine, Chosun University, Gwangju 501-759, Republic of Korea
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60
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Genoux-Bastide E, Lorendeau D, Nicolle E, Yahiaoui S, Magnard S, Di Pietro A, Baubichon-Cortay H, Boumendjel A. Identification of Xanthones as Selective Killers of Cancer Cells Overexpressing the ABC Transporter MRP1. ChemMedChem 2011; 6:1478-84. [DOI: 10.1002/cmdc.201100102] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 04/29/2011] [Indexed: 11/06/2022]
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61
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Yang HY, Zhao L, Yang Z, Zhao Q, Qiang L, Ha J, Li ZY, You QD, Guo QL. Oroxylin a reverses multi-drug resistance of human hepatoma BEL7402/5-FU cells via downregulation of P-glycoprotein expression by inhibiting NF-κB signaling pathway. Mol Carcinog 2011; 51:185-95. [DOI: 10.1002/mc.20789] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 03/31/2011] [Accepted: 04/05/2011] [Indexed: 12/18/2022]
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62
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Palmeira A, Rodrigues F, Sousa E, Pinto M, Vasconcelos MH, Fernandes MX. New Uses for Old Drugs: Pharmacophore-Based Screening for the Discovery of P-Glycoprotein Inhibitors. Chem Biol Drug Des 2011; 78:57-72. [DOI: 10.1111/j.1747-0285.2011.01089.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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63
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Nakagawa-Goto K, Chang PC, Lai CY, Hung HY, Chen TH, Wu PC, Zhu H, Sedykh A, Bastow KF, Lee KH. Antitumor agents. 280. Multidrug resistance-selective desmosdumotin B analogues. J Med Chem 2010; 53:6699-705. [PMID: 20735140 DOI: 10.1021/jm100846r] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
6,6,8-Triethyldesmosdumotin B (2) was discovered as a MDR-selective flavonoid with significant in vitro anticancer activity against a multidrug resistant (MDR) cell line (KB-VIN) but without activity against the parent cells (KB). Additional 2 analogues were synthesized and evaluated to determine the effect of B-ring modifications on MDR-selectivity. Analogues with a B-ring Me (3) or Et (4) group had substantially increased MDR selectivity. Three new disubstituted analogues, 35, 37, and 49, also had high collateral sensitivity (CS) indices of 273, 250, and 100, respectively. Furthermore, 2-4 also displayed MDR selectivity in an MDR hepatoma-cell system. While 2-4 showed either no or very weak inhibition of cellular P-glycoprotein (P-gp) activity, they either activated or inhibited the actions of the first generation P-gp inhibitors verapamil or cyclosporin, respectively.
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Affiliation(s)
- Kyoko Nakagawa-Goto
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
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64
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Modulatory Effects of Natural Curcuminoids on P-Glycoprotein ATPase of Insecticide-Resistant Pest Helicoverpa armigera (Lepidopetera: Noctüidae). J Membr Biol 2010; 236:271-8. [DOI: 10.1007/s00232-010-9299-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 08/16/2010] [Indexed: 11/27/2022]
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65
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Effects of acylcarnitines on efflux transporting system in Caco-2 cell monolayers. Eur J Drug Metab Pharmacokinet 2010; 35:1-7. [DOI: 10.1007/s13318-010-0001-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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66
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Febvay S, Marini DM, Belcher AM, Clapham DE. Targeted cytosolic delivery of cell-impermeable compounds by nanoparticle-mediated, light-triggered endosome disruption. NANO LETTERS 2010; 10:2211-9. [PMID: 20446663 PMCID: PMC4058846 DOI: 10.1021/nl101157z] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Nanoparticle (NP)-mediated drug delivery typically relies on cargo release to occur passively or in response to environmental stimuli. Here we present a delivery method based on light-activated disruption of intracellular vesicles after internalization of biofunctionalized mesoporous silica nanoparticles loaded with cargo. This method combines the power of targeted delivery with the spatiotemporal control of light activation. As an example, we delivered a cell-impermeable fluorescent compound exclusively to the cytosol of multidrug resistant cancer cells in a mixed population.
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Affiliation(s)
- Sébastien Febvay
- Department of Cardiology, Howard Hughes Medical Institute, Manton Center for Orphan Disease, Children’s Hospital Boston, Boston, Massachusetts 02115
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute Technology, Cambridge, Massachusetts 02139
| | - Davide M. Marini
- Department of Cardiology, Howard Hughes Medical Institute, Manton Center for Orphan Disease, Children’s Hospital Boston, Boston, Massachusetts 02115
- Department of Materials Science and Engineering, Massachusetts Institute Technology, Cambridge, Massachusetts 02139
| | - Angela M. Belcher
- Department of Materials Science and Engineering, Massachusetts Institute Technology, Cambridge, Massachusetts 02139
| | - David E. Clapham
- Department of Cardiology, Howard Hughes Medical Institute, Manton Center for Orphan Disease, Children’s Hospital Boston, Boston, Massachusetts 02115
- Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115
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67
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Kitagawa S, Nabekura T, Nakamura Y, Takahashi T, Kashiwada Y. Inhibition of P-glycoprotein function by tannic acid and pentagalloylglucose. J Pharm Pharmacol 2010; 59:965-9. [PMID: 17637191 DOI: 10.1211/jpp.59.7.0008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
We studied the effects of tannic acid and 1(β),2,3,4,6-penta-O-galloyl-D-glucose (pentagalloylglucose), one of the components of tannic acid, on the P-glycoprotein (P-gp) function in multidrug-resistant P-gp over-expressing KB-C2 cells. Both tannic acid and pentagalloylglucose markedly elevated the accumulation of P-gp substrates, rhodamine 123 and daunorubicin, by inhibiting their efflux. A 19-fold increase in cellular rhodamine 123 was observed for tannic acid at 60 μM (85 μg mL−1) and a 21-fold increase was observed for pentagalloylglucose at 100 μM (94 μg mL−1). The increasing effects of these compounds in the accumulation were much larger than that of (-)epigallocatechin-3-O-gallate (EGCG), which has been revealed to have a prominent inhibitory effect on P-gp compared with other flavonoids. Analysis of verapamil-stimulated ATPase activity in membrane vesicles expressing human P-gp suggested that inhibition of P-gp function by tannic acid and pentagalloylglucose was at least partly due to ATPase inhibition of P-gp. The findings also suggested that the presence of a large number of galloyl groups in polyphenols strengthens the interaction with regulatory regions in P-gp.
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Affiliation(s)
- Shuji Kitagawa
- Kobe Pharmaceutical University, Motoyamakita-machi 4-19-1, Kobe 658-8558, Japan.
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68
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Sheu MT, Liou YB, Kao YH, Lin YK, Ho HO. A Quantitative Structure-Activity Relationship for the Modulation Effects of Flavonoids on P-Glycoprotein-Mediated Transport. Chem Pharm Bull (Tokyo) 2010; 58:1187-94. [DOI: 10.1248/cpb.58.1187] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Yi-Bo Liou
- College of Pharmacy, Taipei Medical University
| | - Yu-Han Kao
- College of Pharmacy, Taipei Medical University
| | - Ying-Ku Lin
- College of Pharmacy, Taipei Medical University
| | - Hsiu-O Ho
- College of Pharmacy, Taipei Medical University
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69
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70
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Analogs of a 4-aminothieno[2,3-d]pyrimidine lead (QB13) as modulators of P-glycoprotein substrate specificity. Bioorg Med Chem Lett 2009; 19:6102-5. [DOI: 10.1016/j.bmcl.2009.09.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 09/02/2009] [Accepted: 09/05/2009] [Indexed: 12/27/2022]
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71
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Fan R, Sun Y, Ye Y. Iodine(III)-Mediated Tandem Acetoxylation−Cyclization of o-Acyl Phenols for the Facile Construction of α-Acetoxy Benzofuranones. Org Lett 2009; 11:5174-7. [DOI: 10.1021/ol902067x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Renhua Fan
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yi Sun
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yang Ye
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
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Abstract
The prominent role for the drug efflux pump ABCB1 (P-glycoprotein) in mediating resistance to chemotherapy was first suggested in 1976 and sparked an incredible drive to restore the efficacy of anticancer drugs. Achieving this goal seemed inevitable in 1982 when a series of calcium channel blockers were demonstrated to restore the efficacy of chemotherapy agents. A large number of other compounds have since been demonstrated to restore chemotherapeutic sensitivity in cancer cells or tissues. Where do we stand almost three decades since the first reports of ABCB1 inhibition? Unfortunately, in the aftermath of extensive fundamental and clinical research efforts the situation remains gloomy. Only a small handful of compounds have reached late stage clinical trials and none are in routine clinical usage to circumvent chemoresistance. Why has the translation process been so ineffective? One factor is the multifactorial nature of drug resistance inherent to cancer tissues; ABCB1 is not the sole factor. However, expression of ABCB1 remains a significant negative prognostic indicator and is closely associated with poor response to chemotherapy in many cancer types. The main difficulties with restoration of sensitivity to chemotherapy reside with poor properties of the ABCB1 inhibitors: (1) low selectivity to ABCB1, (2) poor potency to inhibit ABCB1, (3) inherent toxicity and/or (4) adverse pharmacokinetic interactions with anticancer drugs. Despite these difficulties, there is a clear requirement for effective inhibitors and to date the strategies for generating such compounds have involved serendipity or simple chemical syntheses. This chapter outlines more sophisticated approaches making use of bioinformatics, combinatorial chemistry and structure informed drug design. Generating a new arsenal of potent and selective ABCB1 inhibitors offers the promise of restoring the efficacy of a key weapon in cancer treatment--chemotherapy.
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73
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Go WJ, Ryu JH, Qiang F, Han HK. Evaluation of the flavonoid oroxylin A as an inhibitor of P-glycoprotein-mediated cellular efflux. JOURNAL OF NATURAL PRODUCTS 2009; 72:1616-1619. [PMID: 19739602 DOI: 10.1021/np9003036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Oroxylin A (1), a flavonoid from the roots of Scutellaria baicalensis, increased the cellular accumulation of calcein AM in a concentration-dependent manner in NCI/ADR-RES cells overexpressing P-glycoprotein over the concentration range 0-40 microM. In addition, 1 significantly (p < 0.05) increased the cellular accumulation of paclitaxel in NCI/ADR-RES cells while it did not alter the cellular accumulation of paclitaxel in cells lacking P-glycoprotein expression. Accordingly, the concentrations that yielded 50% cytotoxicity of vinblastine and paclitaxel were reduced by approximately 5-fold in the presence of 1. This indicated that cancer cells became more susceptible to the cytotoxicity of vinblastine and paclitaxel in the presence of 1. The concomitant use of 1 (30 mg.kg(-1)) significantly (p < 0.05) enhanced the oral exposure of paclitaxel (15 mg.kg(-1)) in rats. The C(max) and AUC values of paclitaxel increased by 2.1-2.6-fold in the presence of 1 with no significant change in T(max). In conclusion, 1 was effective in inhibiting P-glycoprotein-mediated drug efflux both in vitro and in vivo, suggesting that it may be useful to improve the cellular availability of P-glycoprotein substrates such as anticancer drugs.
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Affiliation(s)
- Woon Jung Go
- BK21 Project Team, College of Pharmacy, Chosun University, Gwangju, Korea
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74
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Im YB, Ha I, Kang KW, Lee MY, Han HK. Macelignan: A New Modulator of P-Glycoprotein in Multidrug-Resistant Cancer Cells. Nutr Cancer 2009; 61:538-43. [DOI: 10.1080/01635580802666273] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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75
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Cancer-relevant biochemical targets of cytotoxic Lonchocarpus flavonoids: A molecular docking analysis. J Mol Model 2009; 16:311-26. [DOI: 10.1007/s00894-009-0547-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Accepted: 06/11/2009] [Indexed: 11/25/2022]
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76
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Wu J, Li X, Cheng W, Xie Q, Liu Y, Zhao C. Quantitative Structure Activity Relationship (QSAR) Approach to Multiple Drug Resistance (MDR) Modulators Based on Combined Hybrid System. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/qsar.200860134] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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77
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Chan KF, Zhao Y, Chow T, Yan C, Ma D, Burkett B, Wong I, Chow L, Chan T. Flavonoid Dimers as Bivalent Modulators for P-Glycoprotein-Based Multidrug Resistance: Structure-Activity Relationships. ChemMedChem 2009; 4:594-614. [DOI: 10.1002/cmdc.200800413] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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78
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Patoilo DT, Silva AMS, Pinto DCGA, Tomé AC, Cavaleiro JAS. Synthesis of 5-Hydroxy-2-(naphth-2-yl)chromone derivatives. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.5570440617] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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79
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Boccard J, Bajot F, Di Pietro A, Rudaz S, Boumendjel A, Nicolle E, Carrupt PA. A 3D linear solvation energy model to quantify the affinity of flavonoid derivatives toward P-glycoprotein. Eur J Pharm Sci 2009; 36:254-64. [DOI: 10.1016/j.ejps.2008.09.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2008] [Revised: 09/21/2008] [Accepted: 09/22/2008] [Indexed: 11/29/2022]
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80
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Wesołowska O, Hendrich AB, Łaniapietrzak B, Wiśniewski J, Molnar J, Ocsovszki I, Michalak K. Perturbation of the lipid phase of a membrane is not involved in the modulation of MRP1 transport activity by flavonoids. Cell Mol Biol Lett 2008; 14:199-221. [PMID: 19020811 PMCID: PMC6275984 DOI: 10.2478/s11658-008-0044-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Accepted: 09/03/2008] [Indexed: 11/20/2022] Open
Abstract
The expression of transmembrane transporter multidrug resistance-associated protein 1 (MRP1) confers the multidrug-resistant phenotype (MDR) on cancer cells. Since the activity of the other MDR transporter, P-glycoprotein, is sensitive to membrane perturbation, we aimed to check whether the changes in lipid bilayer properties induced by flavones (apigenin, acacetin) and flavonols (morin, myricetin) were related to their MRP1 inhibitory activity. All the flavonoids inhibited the efflux of MRP1 fluorescent substrate from human erythrocytes and breast cancer cells. Morin was also found to stimulate the ATPase activity of erythrocyte ghosts. All flavonoids intercalated into phosphatidylcholine bilayers as judged by differential scanning calorimetry and fluorescence spectroscopy with the use of two carbocyanine dyes. The model of an intramembrane localization for flavones and flavonols was proposed. No clear relationship was found between the membrane-perturbing activity of flavonoids and their potency to inhibit MRP1. We concluded that mechanisms other than perturbation of the lipid phase of membranes were responsible for inhibition of MRP1 by the flavonoids.
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Affiliation(s)
- Olga Wesołowska
- Department of Biophysics, Wrocław Medical University, ul. Chałubińskiego 10, 50-368 Wrocław, Poland.
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81
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Nenadis N, Sigalas MP. A DFT Study on the Radical Scavenging Activity of Maritimetin and Related Aurones. J Phys Chem A 2008; 112:12196-202. [DOI: 10.1021/jp8058905] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nikolaos Nenadis
- Laboratory of Applied Quantum Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Michael P. Sigalas
- Laboratory of Applied Quantum Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
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82
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Sim HM, Lee CY, Ee PLR, Go ML. Dimethoxyaurones: Potent inhibitors of ABCG2 (breast cancer resistance protein). Eur J Pharm Sci 2008; 35:293-306. [DOI: 10.1016/j.ejps.2008.07.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Revised: 07/10/2008] [Accepted: 07/24/2008] [Indexed: 10/21/2022]
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83
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Halliwell B. Are polyphenols antioxidants or pro-oxidants? What do we learn from cell culture and in vivo studies? Arch Biochem Biophys 2008; 476:107-12. [DOI: 10.1016/j.abb.2008.01.028] [Citation(s) in RCA: 527] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 12/26/2007] [Accepted: 01/29/2008] [Indexed: 12/17/2022]
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84
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Lin LC, Wang MN, Tsai TH. Food-drug interaction of (-)-epigallocatechin-3-gallate on the pharmacokinetics of irinotecan and the metabolite SN-38. Chem Biol Interact 2008; 174:177-82. [PMID: 18579105 DOI: 10.1016/j.cbi.2008.05.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2008] [Revised: 05/28/2008] [Accepted: 05/29/2008] [Indexed: 11/16/2022]
Abstract
The aim of the present study was to investigate the effect of (-)-epigallocatechin-3-gallate (EGCG) on the pharmacokinetics of irinotecan (CPT-11) and its metabolite SN-38. EGCG was potentially used to modulate the ATPase activity of P-glycoprotein (P-gp). Experimental Sprague-Dawley rats were treated with EGCG (20mg/kg, i.v.) 10min before CPT-11 (10mg/kg, i.v.) administration, whereas the control group received CPT-11 (10mg/kg, i.v.) only. The biological samples were prepared by the protein precipitation and detected by HPLC-fluorescence detection which provided a good separation of CPT-11 and SN-38 within 10min. The pharmacokinetic data indicate that the area under the plasma concentration-time curves (AUC) of CPT-11 and SN-38 were increased by 57.7 and 18.3%, and AUC in bile were decreased by 15.8 and 46.8%, respectively, for the group pretreated with EGCG. The blood to bile distribution ratio (AUC(bile)/AUC(blood)) was significantly reduced after group coadministration of EGCG, it can be seen that the bile efflux transport system of CPT-11 and SN-38 may be markedly reduced by the treatment of EGCG which plays the role of P-gp inhibitor. In conclusion, EGCG was found to inhibit the transport of CPT-11 and SN-38 into the biliary elimination and their half-lives in plasma could be substantially prolonged. Based on the food-drug interaction, persons taking daily nutritional supplements should be warned of this interaction possibility.
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Affiliation(s)
- Lie-Chwen Lin
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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85
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Nakagawa-Goto K, Bastow KF, Chen TH, Morris-Natschke SL, Lee KH. Antitumor agents 260. New desmosdumotin B analogues with improved in vitro anticancer activity. J Med Chem 2008; 51:3297-303. [PMID: 18473435 DOI: 10.1021/jm701208v] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sixteen analogues (3-16, 33, and 48) of the unique flavonoid desmosdumotin B (1) were prepared and evaluated as in vitro inhibitors of the human KB cancer cell line and its MDR subclone, KB-VIN. 6,8,8-Triethyl analogues 10- 13 showed enhanced KB-VIN selectivity. In particular, 4'-alkyl derivatives 11 (4'-Me) and 12 (4'-Et) showed significant ED 50 values of 0.03 and 0.025 microg/mL, respectively, against KB-VIN with selectivities of >460- and 320-fold compared with that of KB. This report is the first to describe compounds showing such high activity against MDR cells versus non-MDR cells. The unique activity of 1-analogues is likely MDR-mediated because cotreatment with verapamil, a P-gp inhibitor, partially reversed the selective toxicity of both 1 and 10. Interestingly, only 1-analogues with a naphthalene B-ring (8 and 14) showed significant cytotoxic activity against KB and other cancer cell lines. Thus, 1-analogues might be a new class of potent drug candidates, especially as 11 and 12 express direct selective action against tumors expressing MDR.
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Affiliation(s)
- Kyoko Nakagawa-Goto
- Natural Products Research Laboratories, School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
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86
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Minassi A, Giana A, Ech-Chahad A, Appendino G. A regiodivergent synthesis of ring a C-prenylflavones. Org Lett 2008; 10:2267-70. [PMID: 18454537 DOI: 10.1021/ol800665w] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Capitalizing on the use of orthogonal protecting groups and the development of a modified Robinson flavone synthesis that avoids harsh acidic conditions, a regioselective synthesis of 6- and 8-prenylflavones from the same prenylated disilylated phloracetophenone (9) has been developed, targeting cannflavin B (1d), the COX-inhibiting principle of marijuana, and its unnatural isomer isocannflavin B (1e) as model compounds.
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Affiliation(s)
- Alberto Minassi
- Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche, Università del Piemonte Orientale, Novara, Italy
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87
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Boumendjel A, Boccard J, Carrupt PA, Nicolle E, Blanc M, Geze A, Choisnard L, Wouessidjewe D, Matera EL, Dumontet C. Antimitotic and Antiproliferative Activities of Chalcones: Forward Structure–Activity Relationship. J Med Chem 2008; 51:2307-10. [PMID: 18293907 DOI: 10.1021/jm0708331] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ahcène Boumendjel
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Julien Boccard
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Pierre-Alain Carrupt
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Edwige Nicolle
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Madeleine Blanc
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Annabelle Geze
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Luc Choisnard
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Denis Wouessidjewe
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Eva-Laure Matera
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
| | - Charles Dumontet
- Département de Pharmacochimie Moléculaire, UMR 5063, ICMG-FR 2607-Université Joseph Fourier Grenoble I, 470, rue de la Chimie, 38240 St Martin d’Hères France, Unité de Pharmacochimie, Section des Sciences Pharmaceutiques, Université de Genève, Université de Lausanne, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland, Université de Lyon, Lyon, F-69008, France, and INSERM, U590, F-69008, France
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88
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Liu XL, Tee HW, Go ML. Functionalized chalcones as selective inhibitors of P-glycoprotein and breast cancer resistance protein. Bioorg Med Chem 2007; 16:171-80. [PMID: 17964170 DOI: 10.1016/j.bmc.2007.10.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2007] [Revised: 09/19/2007] [Accepted: 10/02/2007] [Indexed: 11/29/2022]
Abstract
A library of chalcones with basic functionalities were screened for inhibition of P-glycoprotein (Pgp, ABCB1) by the calcein-AM accumulation assay on MDCKII/MDR1 cells. Three members that had ring A substituted with 5-(1-ethylpiperidin-4-yl) and 2,4-dimethoxy groups were found to increase calcein-AM accumulation to a greater extent than verapamil, a Pgp inhibitor. These compounds were subsequently shown to enhance the uptake of doxorubicin by MCF-7 cells that over-expressed Pgp. However, when tested for inhibition of the breast cancer resistance protein (BCRP, ABCG2) by the mitoxantrone uptake assay, the same compounds fared poorly. In comparison, a non-basic chalcone (5-14, 3-(4-chlorophenyl)-1-(2,4-dimethoxyphenyl)prop-2-en-1-one) increased mitoxantrone uptake by BCRP over-expressing MCF-7 cells (MCF-7/MX) by more than 300% at 5 microM. Thus, introducing a basic group on the chalcone template enhanced Pgp inhibition at the expense of BCRP inhibition. The basic chalcones were also better Pgp inhibitors than their non-basic counterparts which may in turn be better BCRP inhibitors. Structure activity analysis showed that lipophilicity of the chalcones was not the overriding factor for Pgp inhibitory activity. Rather, good activity was associated with appropriately placed electron donor atoms, of which the meta-disubstituted dimethoxy motif on either ring A or B was of particular relevance. In spite of differing structural requirements for inhibition of Pgp and BCRP, chalcone 3-100 [3-(2,4-dimethoxyphenyl)-1-(4-(piperazin-1-yl)phenyl)prop-2-en-1-one] inhibited both Pgp and BCRP to a reasonable extent and may be a useful starting point for the design of dual inhibitors.
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Affiliation(s)
- Xiao-Ling Liu
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
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89
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Konieczny MT, Konieczny W, Sabisz M, Skladanowski A, Wakieć R, Augustynowicz-Kopeć E, Zwolska Z. Acid-catalyzed synthesis of oxathiolone fused chalcones. Comparison of their activity toward various microorganisms and human cancer cells line. Eur J Med Chem 2007; 42:729-33. [PMID: 17300856 DOI: 10.1016/j.ejmech.2006.12.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Accepted: 12/14/2006] [Indexed: 10/23/2022]
Abstract
Substituted oxathiolone fused chalcones were prepared by condensation of 4-acetyl-5-methoxy-2-oxo-benz[1,3]oxathiole with benzaldehydes under acidic conditions. The compounds were tested for cytotoxic, antibacterial, antifungal and tuberculostatic activity. Three derivatives demonstrated weak activity against HeLa cells, two were slightly active against Micrococcus luteus and Staphylococcus aureus, and one was active against Mycobacterium tuberculosis H(37)Rv.
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Affiliation(s)
- Marek T Konieczny
- Department of Organic Chemistry, Medical University of Gdańsk, Faculty of Pharmacy, Gdańsk, Poland.
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90
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Boumendjel A, Macalou S, Ahmed-Belkacem A, Blanc M, Di Pietro A. Acridone derivatives: Design, synthesis, and inhibition of breast cancer resistance protein ABCG2. Bioorg Med Chem 2007; 15:2892-7. [PMID: 17317193 DOI: 10.1016/j.bmc.2007.02.017] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2006] [Revised: 02/01/2007] [Accepted: 02/09/2007] [Indexed: 11/19/2022]
Abstract
The breast cancer resistance protein (BCRP, ABCG2) is among the latest discovered ABC proteins to be involved in MDR phenotype and for which only few inhibitors are known. In continuing our program aimed at discovering efficient multidrug resistance modulators, we conceived and synthesized new acridones as ABCG2 inhibitors. The design of target molecules was based on earlier results dealing with ABCG2 inhibition with flavone and chromone derivatives. The human wild-type (R482) ABCG2-transfected cells were used for rational screening of inhibitory acridones. The synthesis of target compounds, the inhibitory activity against ABCG2, and structure-activity relationships are described. One of the acridones was even more potent than the reference inhibitor, GF120918, as shown by its ability to inhibit mitoxantrone efflux.
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Affiliation(s)
- Ahcene Boumendjel
- Département de Pharmacochimie Moléculaire, UMR 5063 CNRS/Université Joseph Fourier-Grenoble I, 5 avenue de Verdun BP 138, 38243 Meylan, France.
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91
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Patanasethanont D, Nagai J, Yumoto R, Murakami T, Sutthanut K, Sripanidkulchai BO, Yenjai C, Takano M. Effects of Kaempferia parviflora extracts and their flavone constituents on P-glycoprotein function. J Pharm Sci 2007; 96:223-33. [PMID: 17031860 DOI: 10.1002/jps.20769] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The purpose of this study was to examine the effects of extracts and flavone derivatives from the rhizome of Kaempferia parviflora on P-glycoprotein (P-gp)-mediated transport in LLC-GA5-COL150, a transfectant cell line of a porcine kidney epithelial cell line LLC-PK1 with human MDR1 cDNA. Ethanol extract obtained from Kaempferia parviflora rhizome significantly increased the accumulation of rhodamine 123 and daunorubicin, P-gp substrates, in LLC-GA5-COL150 cells, but not in LLC-PK1 cells. The aqueous extract also increased the accumulation in LLC-GA5-COL150 cells with lower potency than the ethanol extract. The effects of flavone derivatives isolated from the rhizome of Kaempferia parviflora on P-gp function were examined. Among six flavones tested, 3,5,7,3',4'-pentamethoxyflavone most potently increased the accumulation of rhodamine 123 and daunorubicin in LLC-GA5-COL150 cells in a concentration-dependent manner. In addition, 5,7-dimethoxyflavone to lesser degree increased rhodamine 123 accumulation in LLC-GA5-COL150 cells. In contrast, the other four flavone derivatives had no significant effect on the accumulation of rhodamine 123 in LLC-GA5-COL150 cells in a concentration range tested. These results indicate that extracts and flavone derivatives from the rhizome of Kaempferia parviflora can inhibit P-gp function, which may be useful for overcoming P-gp-mediated multidrug resistance and improving the oral bioavailability of anticancer agents.
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Affiliation(s)
- Denpong Patanasethanont
- Department of Pharmaceutics and Therapeutics, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Hiroshima 734-8553, Japan
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92
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Chung SY, Jang DS, Han AR, Jang JO, Kwon Y, Seo EK, Lee HJ. Modulation of P-glycoprotein-mediated resistance by kaempferol derivatives isolated fromZingiber zerumbet. Phytother Res 2007; 21:565-9. [PMID: 17335117 DOI: 10.1002/ptr.2113] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This study examined the effects of the kaempferol derivatives extracted from Zingiber zerumbet on the accumulation and efflux of [(3)H]-daunomycin (DNM) in P-glycoprotein (P-gp) overexpressing multidrug resistant (MDR) human breast cancer cells, MCF-7/ADR. Of six kaempferol derivatives extracted from Z. zerumbet, kaempferol-3-O-methyl ether (1) and kaempferol-3,4'-O-dimethyl ether (2) showed a potent P-gp inhibitory effect as great as verapamil, a well-known P-gp inhibitor. The P-gp inhibitory activity of these two compounds was through a 3-fold increase of the level of [(3)H]-DNM accumulation and a decrease of P-gp-mediated efflux. These results suggest that the kaempferol derivative components of Z. zerumbet can be used as a scaffold for developing agents that reverse P-gp-mediated MDR in human cancer chemotherapy.
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Affiliation(s)
- Soo Yeon Chung
- College of Pharmacy, Ewha Womans University, Seoul 120-750, Korea
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93
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Chan KF, Zhao Y, Burkett BA, Wong ILK, Chow LMC, Chan TH. Flavonoid Dimers as Bivalent Modulators for P-Glycoprotein-Based Multidrug Resistance: Synthetic Apigenin Homodimers Linked with Defined-Length Poly(ethylene glycol) Spacers Increase Drug Retention and Enhance Chemosensitivity in Resistant Cancer Cells. J Med Chem 2006; 49:6742-59. [PMID: 17154505 DOI: 10.1021/jm060593+] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Much effort has been spent on searching for better P-glycoprotein- (P-gp-) based multidrug resistance (MDR) modulators. Our approach was to target the binding sites of P-gp using dimers of dietary flavonoids. A series of apigenin-based flavonoid dimers, linked by poly(ethylene glycol) chains of various lengths, have been synthesized. These flavonoid dimers modulate drug chemosensitivity and retention in breast and leukemic MDR cells with the optimal number of ethylene glycol units equal to 2-4. Compound 9d bearing four ethylene glycol units increased drug accumulation in drug-resistant cells and enhanced cytotoxicity of paclitaxel, doxorubicin, daunomycin, vincristine, and vinblastine in drug-resistant breast cancer and leukemia cells in vitro, resulting in reduction of IC50 by 5-50 times. This compound also stimulated P-gp's ATPase activity by 3.3-fold. Its modulating activity was presumably by binding to the substrate binding sites of P-gp and disrupting drug efflux.
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Affiliation(s)
- Kin-Fai Chan
- Department of Applied Biology and Chemical Technology and the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong Polytechnic University, Hong Kong SAR
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94
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Václavíková R, Boumendjel A, Ehrlichová M, Kovár J, Gut I. Modulation of paclitaxel transport by flavonoid derivatives in human breast cancer cells. Is there a correlation between binding affinity to NBD of P-gp and modulation of transport? Bioorg Med Chem 2006; 14:4519-25. [PMID: 16516478 DOI: 10.1016/j.bmc.2006.02.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Revised: 02/07/2006] [Accepted: 02/14/2006] [Indexed: 11/15/2022]
Abstract
We have investigated the effect of 13 flavonoid derivatives on [(14)C]paclitaxel transport in two human breast cancer cell lines, the adriamycin-resistant NCI/ADR-RES and sensitive MDA-MB-435. For this study, we selected representatives of aurones, chalcones, flavones, flavonols, chromones, and isoflavones with known binding affinity toward nucleotide-binding domain (NBD2) of P-glycoprotein and for which no reported work is available regarding paclitaxel transport. Aurones CB-284, CB-285, CB-287, and ML-50 most effectively inhibited P-gp related transport in the resistant line in comparison with chalcones, flavones, flavonols, chromones, and isoflavone derivatives and accordingly increased the accumulation of [(14)C]paclitaxel and decreased its efflux. Those agents efficiently modulated paclitaxel transport in P-gp highly expressing resistant human breast cancer cells and they could increase the efficiency of chemotherapy in paclitaxel-resistant tumors. In contrast, the sensitive cell line responded reversely in that CB-284, CB-285, CB-287, and ML-50 significantly inhibited accumulation of [(14)C]paclitaxel and especially CB-287, which significantly stimulated its efflux. Some, but not all, of the data correlated with the binding of flavonoid derivatives to P-gp, and indicated that even in the P-gp highly expressing NCI/ADR-RES cells, the binding was not the only factor influencing the transport of [(14)C]paclitaxel. Opposite effects of flavonoid derivatives on the P-gp highly expressing and MDA-MB-435 non-expressing cell lines indicate that paclitaxel is not only transported by P-gp and let us assume that Mrp2 or ABCC5 seem to be good transport-candidates in these cells. The inhibition of paclitaxel accumulation and stimulation of its efflux are potentially unfavorable for drug therapy and since they could be due to modulation of drug transporters other than P-gp, their expression in tumors is of great significance for efficient chemotherapy.
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Affiliation(s)
- Radka Václavíková
- Biotransformation Group, National Institute of Public Health, Praha, Czech Republic.
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95
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Sugihara N, Toyama K, Michihara A, Akasaki K, Tsuji H, Furuno K. Effect of benzo[a]pyrene on P-glycoprotein-mediated transport in Caco-2 cell monolayer. Toxicology 2006; 223:156-65. [PMID: 16647797 DOI: 10.1016/j.tox.2006.03.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 03/16/2006] [Accepted: 03/21/2006] [Indexed: 11/21/2022]
Abstract
The main exposure pathway of benzo[a]pyrene (Bap) for humans is considered to be via the daily diet. The purpose of this study was to investigate the effect of BaP on the intestinal transport of chemicals mediated by P-glycoprotein (P-gp). The intestinal epithelial membrane transport of rhodamine-123 (Rho-123), a substrate of P-gp, was examined using a monolayer of the human Caco-2 cell line grown in transwells. In the monolayer exposed to Bap for 72 h before transport experiments, the ratio of the apparent permeability coefficients (P(app)) of Rho-123 efflux increased compared to that of the control. The permeability of rhodamine-B (Rho-B), not a substrate of P-gp, showed no difference between the monolayers. Treatment with quinidine or cyclosporine A, which are P-gp inhibitors, decreased the P(app) of Rho-123 to the same degree in both monolayers. The transport of Rho-123 was not influenced by the presence of Bap. Thus, Bap seemed not to act directly on the efflux activity of P-gp and be a binding site competitor of Rho-123. In the Caco-2 cells that enhanced the efflux of Rho-123 by the treatment with Bap, an increase in mRNA expression of MDR 1 (P-gp) was confirmed compared to that of control by RT-PCR. Furthermore, Western blot analysis using a monoclonal antibody, C219, demonstrated the increase of P-gp in Caco-2 cells exposed to Bap, compared with controls. It was inferred that Bap exposure induced the expression of P-gp, which led to the observed increase in efflux transport of Rho-123. The possibility was suggested that Bap might affect the disposition of medicines by increasing P-gp expression.
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Affiliation(s)
- Narumi Sugihara
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzou, Gakuen-cho, Fukuyama, Hiroshima 729-0292, Japan.
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96
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Mavel S, Dikic B, Palakas S, Emond P, Greguric I, de Gracia AG, Mattner F, Garrigos M, Guilloteau D, Katsifis A. Synthesis and biological evaluation of a series of flavone derivatives as potential radioligands for imaging the multidrug resistance-associated protein 1 (ABCC1/MRP1). Bioorg Med Chem 2006; 14:1599-607. [PMID: 16263302 DOI: 10.1016/j.bmc.2005.10.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2005] [Revised: 10/05/2005] [Accepted: 10/06/2005] [Indexed: 11/16/2022]
Abstract
Multidrug resistance (MDR) is one of the major problems affecting the treatment of cancer. In vivo visualization and quantification of MDR proteins would be of great value to better select the therapeutic strategy. Six flavone-based compounds were synthesized and evaluated for their cytotoxic activity and MDR-reversing capacity using hMRP1 or hMDR1 overexpressing cell lines for in vitro assays. All the flavone derivatives were highly selective for hMRP1-expressing cell lines. These derivatives each used at 4muM (a non-cytotoxic concentration) enhance significantly the sensitivity of hMRP1-mediated MDR cell line toward doxorubicin toxicity. Their MDR-reversing capacity suggests that, in particular, the 4'-fluoroalkyloxy and 4'-iodo apigenin derivatives are potential new radiopharmaceuticals to visualize in vivo MRP1-mediated MDR phenomenon by PET or SPECT.
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Affiliation(s)
- Sylvie Mavel
- Université François Rabelais, Faculté de Pharmacie, Lab. de Biophysique Médicale et Pharmaceutique, INSERM U619, Tours, France.
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97
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Kitagawa S. Inhibitory effects of polyphenols on p-glycoprotein-mediated transport. Biol Pharm Bull 2006; 29:1-6. [PMID: 16394499 DOI: 10.1248/bpb.29.1] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Overexpression of P-glycoprotein (P-gp), a plasma membrane transporter which extrudes chemotherapeutic agents out of cells, has been associated with the multidrug resistance (MDR) of cancer cells. It has been revealed that flavonoids and other polyphenols inhibit P-gp activity. Due to their inhibitory activities of polyphenols on P-gp function and their physiological safety, they are possible candidates for modulators of MDR. To determine suitable candidates, it is important to clarify the structure-activity relationships of their inhibitory activities on P-gp function. Determining the structure-activity relationships is also meaningful because the intake of dietary polyphenols may also alter drug pharmacokinetics and pharmacodynamics via inhibition of P-gp-mediated drug efflux in tissues such as the intestinal epithelium, blood-brain barrier, hepatocytes and renal tubular cells. This is a review of our recent investigations using multidrug-resistant P-gp overexpressing KB-C2 cells.
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Affiliation(s)
- Shuji Kitagawa
- Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan.
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98
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Morris ME, Zhang S. Flavonoid-drug interactions: effects of flavonoids on ABC transporters. Life Sci 2006; 78:2116-30. [PMID: 16455109 DOI: 10.1016/j.lfs.2005.12.003] [Citation(s) in RCA: 178] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Revised: 04/03/2005] [Accepted: 12/07/2005] [Indexed: 11/26/2022]
Abstract
Flavonoids are present in fruits, vegetables and beverages derived from plants (tea, red wine), and in many dietary supplements or herbal remedies including Ginkgo Biloba, Soy Isoflavones, and Milk Thistle. Flavonoids have been described as health-promoting, disease-preventing dietary supplements, and a high intake of flavonoids has been associated with a reduced risk of cancer, cardiovascular diseases, osteoporosis and other age-related degenerative diseases. Due to an increased public interest in alternative medicine and disease prevention, the use of herbal preparations containing high doses of flavonoids for health maintenance has become very popular, raising the potential for interactions with conventional drug therapies. This review will summarize the current literature regarding the interactions of flavonoids with ATP-binding cassette (ABC) efflux transporters, mainly P-glycoprotein, MRP1, MRP2 and BCRP and discuss the potential consequences for flavonoid-drug transport interactions.
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Affiliation(s)
- Marilyn E Morris
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Amherst, NY 14260-1200, USA.
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99
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Boumendjel A, Nicolle E, Moraux T, Gerby B, Blanc M, Ronot X, Boutonnat J. Piperazinobenzopyranones and phenalkylaminobenzopyranones: potent inhibitors of breast cancer resistance protein (ABCG2). J Med Chem 2006; 48:7275-81. [PMID: 16279786 DOI: 10.1021/jm050705h] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In continuing research that led us to identify chromanone derivatives (J. Med. Chem. 2003, 46, 2125) as P-glycoprotein inhibitors, we obtained analogues able to modulate multidrug resistance (MDR) mediated by the breast cancer resistance protein (BCRP). The linkage of 5-hydroxybenzopyran-4-one to piperazines or phenalkylamines affords highly potent inhibitors of BCRP. By using sensitive (HCT116) and resistant colon cancer cells expressing BCRP, we evaluated the effect of 14 benzopyranone (chromone) derivatives on the accumulation and the cytotoxic effect of the anticancer drug, mitoxantrone. At 10 microM, three compounds increased both intracellular accumulation and cytotoxicity of mitoxantrone in HCT116/R cells with a comparable rate as fumitremorgin C and Gleevec used as reference inhibitors. The most potent molecules 5b and 5c are still active at 1 microM, whereas FTC shows weak inhibition. These molecules do not induce cell death as shown by the cell cycle distribution study, which makes them potential candidates for in vivo studies.
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Affiliation(s)
- Ahcène Boumendjel
- Département de Pharmacochimie Moléculaire, UMR-CNRS 5063, Faculté de Pharmacie de Grenoble, 5, Avenue de Verdun, BP 138, 38243 Meylan, France.
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100
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de Monbrison F, Maitrejean M, Latour C, Bugnazet F, Peyron F, Barron D, Picot S. In vitro antimalarial activity of flavonoid derivatives dehydrosilybin and 8-(1;1)-DMA-kaempferide. Acta Trop 2006; 97:102-7. [PMID: 16256062 DOI: 10.1016/j.actatropica.2005.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2005] [Revised: 08/18/2005] [Accepted: 09/21/2005] [Indexed: 12/26/2022]
Abstract
Multidrug-resistant Plasmodium falciparum strains are an increasing problem in endemic areas and are partly responsible for the worsening malaria situation around the world. New cheap and effective compounds active in combination with available drug in the field are urgently needed. The aim of this work was to explore the potential antiplasmodial effect of flavonoid derivatives on parasites growth in vitro. In vitro antiplasmodial activity of dehydrosilybin and 8-(1;1)-DMA-kaempferide has been evaluated by real time PCR for five P. falciparum strains. Both revealed significative antimalarial activity against the different strains. Since this drug family has been largely used and well-tolerated in humans, flavonoid derivatives could be in the near future associated with already available drugs in order to delay the spread of P. falciparum resistance.
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Affiliation(s)
- Frédérique de Monbrison
- E.A. 3732, Université Claude Bernard Lyon I, Laboratoire de Parasitologie, Mycologie Médicale et Maladies Tropicales, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
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