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Teodori E, Braconi L, Manetti D, Romanelli MN, Dei S. The Tetrahydroisoquinoline Scaffold in ABC Transporter Inhibitors that Act as Multidrug Resistance (MDR) Reversers. Curr Top Med Chem 2022; 22:2535-2569. [PMID: 36284399 DOI: 10.2174/1568026623666221025111528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/08/2022] [Accepted: 09/27/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND The failure of anticancer chemotherapy is often due to the development of resistance to a variety of anticancer drugs. This phenomenon is called multidrug resistance (MDR) and is related to the overexpression of ABC transporters, such as P-glycoprotein, multidrug resistance- associated protein 1 and breast cancer resistance protein. Over the past few decades, several ABC protein modulators have been discovered and studied as a possible approach to evade MDR and increase the success of anticancer chemotherapy. Nevertheless, the co-administration of pump inhibitors with cytotoxic drugs, which are substrates of the transporters, does not appear to be associated with an improvement in the therapeutic efficacy of antitumor agents. However, more recently discovered MDR reversing agents, such as the two tetrahydroisoquinoline derivatives tariquidar and elacridar, are characterized by high affinity towards the ABC proteins and by reduced negative properties. Consequently, many analogs of these two derivatives have been synthesized, with the aim of optimizing their MDR reversal properties. OBJECTIVE This review aims to describe the MDR modulators carrying the tetraidroisoquinoline scaffold reported in the literature in the period 2009-2021, highlighting the structural characteristics that confer potency and/or selectivity towards the three ABC transport proteins. RESULTS AND CONCLUSION Many compounds have been synthesized in the last twelve years showing interesting properties, both in terms of potency and selectivity. Although clear structure-activity relationships can be drawn only by considering strictly related compounds, some of the compounds reviewed could be promising starting points for the design of new ABC protein inhibitors.
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Affiliation(s)
- Elisabetta Teodori
- Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, via Ugo Schiff 6, 50019, Sesto Fiorentino (FI), Italy
| | - Laura Braconi
- Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, via Ugo Schiff 6, 50019, Sesto Fiorentino (FI), Italy
| | - Dina Manetti
- Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, via Ugo Schiff 6, 50019, Sesto Fiorentino (FI), Italy
| | - Maria Novella Romanelli
- Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, via Ugo Schiff 6, 50019, Sesto Fiorentino (FI), Italy
| | - Silvia Dei
- Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, via Ugo Schiff 6, 50019, Sesto Fiorentino (FI), Italy
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Kawahara I, Nishikawa S, Yamamoto A, Kono Y, Fujita T. The Impact of Breast Cancer Resistance Protein (BCRP/ABCG2) on Drug Transport Across Caco-2 Cell Monolayers. Drug Metab Dispos 2020; 48:491-498. [PMID: 32193356 DOI: 10.1124/dmd.119.088674] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 03/06/2020] [Indexed: 01/16/2023] Open
Abstract
Breast cancer resistance protein (BCRP) is expressed on the apical membrane of small intestinal epithelial cells and functions as an efflux pump with broad substrate recognition. Therefore, quantitative evaluation of the contribution of BCRP to the intestinal permeability of new chemical entities is very important in drug research and development. In this study, we assessed the BCRP-mediated efflux of several model drugs in Caco-2 cells using WK-X-34 as a dual inhibitor of P-glycoprotein (P-gp) and BCRP and LY335979 as a selective inhibitor of P-gp. The permeability of daidzein was high with an apparent permeability coefficient for apical-to-basal transport (P AB) of 20.3 × 10-6 cm/s. In addition, its efflux ratio (ER) was 1.55, indicating that the contribution of BCRP to its transport is minimal. Estrone-3-sulfate and ciprofloxacin showed relatively higher ER values (>2.0), whereas their BCRP-related absorptive quotient (AQ BCRP) was 0.21 and 0.3, respectively. These results indicate that BCRP does not play a major role in regulating the permeability of estrone-3-sulfate and ciprofloxacin in Caco-2 cells. Nitrofurantoin showed a P AB of 1.8 × 10-6 cm/s, and its ER was 7.6. However, the AQ BCRP was 0.37, suggesting minimal contribution of BCRP to nitrofurantoin transport in Caco-2 cells. In contrast, topotecan, SN-38, and sulfasalazine had low P AB values (0.81, 1.13, and 0.19 × 10-6 cm/s, respectively), and each AQ BCRP was above 0.6, indicating that BCRP significantly contributes to the transport of these compounds in Caco-2 cells. In conclusion, Caco-2 cells are useful to accurately estimate the contribution of BCRP to intestinal drug absorption. SIGNIFICANCE STATEMENT: We performed an in vitro assessment of the contribution of breast cancer resistance protein (BCRP) to the transport of BCRP and/or P-glycoprotein (P-gp) substrates across Caco-2 cell monolayers using absorptive quotient, which has been proposed to represent the contribution of drug efflux transporters to the net efflux. The present study demonstrates that the combined use of a BCRP/P-gp dual inhibitor and a P-gp selective inhibitor is useful to estimate the impact of BCRP and P-gp on the permeability of tested compounds in Caco-2 cells.
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Affiliation(s)
- Iichiro Kawahara
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto, Japan (I.K., S.N., A.Y.) and Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan (Y.K., T.F.)
| | - Satoyo Nishikawa
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto, Japan (I.K., S.N., A.Y.) and Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan (Y.K., T.F.)
| | - Akira Yamamoto
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto, Japan (I.K., S.N., A.Y.) and Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan (Y.K., T.F.)
| | - Yusuke Kono
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto, Japan (I.K., S.N., A.Y.) and Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan (Y.K., T.F.)
| | - Takuya Fujita
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto, Japan (I.K., S.N., A.Y.) and Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan (Y.K., T.F.)
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Stefan SM, Wiese M. Small-molecule inhibitors of multidrug resistance-associated protein 1 and related processes: A historic approach and recent advances. Med Res Rev 2018; 39:176-264. [DOI: 10.1002/med.21510] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/05/2018] [Accepted: 04/28/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Sven Marcel Stefan
- Pharmaceutical Institute; Rheinische Friedrich-Wilhelms-University; Bonn Germany
| | - Michael Wiese
- Pharmaceutical Institute; Rheinische Friedrich-Wilhelms-University; Bonn Germany
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4
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Pan M, Cui J, Jiao L, Ghaleb H, Liao C, Zhou J, Kairuki M, Lin H, Huang W, Qian H. Synthesis and biological evaluation of JL-A7 derivatives as potent ABCB1 inhibitors. Bioorg Med Chem 2017. [DOI: 10.1016/j.bmc.2017.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Ricci JW, Lovato DM, Severns V, Sklar LA, Larson RS. Novel ABCG2 Antagonists Reverse Topotecan-Mediated Chemotherapeutic Resistance in Ovarian Carcinoma Xenografts. Mol Cancer Ther 2016; 15:2853-2862. [PMID: 27671528 DOI: 10.1158/1535-7163.mct-15-0789] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 08/17/2016] [Accepted: 09/14/2016] [Indexed: 11/16/2022]
Abstract
Chemotherapeutic resistance remains a challenge in the treatment of ovarian carcinoma, especially in recurrent disease. Despite the fact that most patients with newly diagnosed tumors attain complete remission following cytoreductive surgery and chemotherapy, ovarian carcinoma has a recurrence rate that exceeds 75%. The ATP-binding cassette family G member 2 (ABCG2) efflux protein has been described as one mechanism that confers multiple-drug resistance to solid tumors and contributes to topotecan resistance in ovarian carcinoma. In fact, one clinical trial demonstrated ABCG2 expression in all patients with primary or recurrent ovarian carcinoma. On the basis of our previous work, we hypothesized that three compounds (CID44640177, CID1434724, and CID46245505), which represent a new piperazine-substituted pyrazolo[1,5]pyrimidine substructure class of ABCG2-specific antagonists, would restore chemosensitivity to drug-resistant ovarian cancer in vitro and in vivo To address the treatment difficulties associated with chemotherapeutic resistance in ovarian cancer, we combined each compound (CID44640177, CID1434724, and CID46245505) with topotecan and administered the mixture to chemoresistant Igrov1/T8 ovarian cancer cells in vitro and Igrov1/T8 xenografts in CB-17 SCID mice. We found that only nanomolar concentrations of each ABCG2 inhibitor in combination with topotecan were required to restore chemosensitivity to Igrov1/T8 cells in vitro In vivo, substantial tumor reduction was achieved with each compound in 4 days, with CID1434724 causing the largest reduction in excess of 60%. No signs of secondary toxic effects were observed with the ABCG2 antagonists. These novel compounds should be viewed as promising drug candidates to reverse ABCG2-mediated chemoresistance. Mol Cancer Ther; 15(12); 2853-62. ©2016 AACR.
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Affiliation(s)
- Jerec W Ricci
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico
| | - Debbie M Lovato
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico
| | - Virginia Severns
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico
| | - Larry A Sklar
- Department of Pathology, University of New Mexico, Albuquerque, New Mexico
| | - Richard S Larson
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico.
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Zhang B, Zhao T, Zhou J, Qiu Q, Dai Y, Pan M, Huang W, Qian H. Design, synthesis and biological evaluation of novel triazole-core reversal agents against P-glycoprotein-mediated multidrug resistance. RSC Adv 2016. [DOI: 10.1039/c6ra02405j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We designed and synthesized a novel series of P-glycoprotein (P-gp)-mediated multidrug resistance (MDR) inhibitors bearing a triazolphenethyl–tetrahydroisoquinoline scaffold through click chemistry.
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Affiliation(s)
- Bo Zhang
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Tianxiao Zhao
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Jie Zhou
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Qianqian Qiu
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Yuxuan Dai
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Miaobo Pan
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Wenlong Huang
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Hai Qian
- Center of Drug Discovery
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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Michaelis M, Selt F, Rothweiler F, Wiese M, Cinatl J. ABCG2 impairs the activity of the aurora kinase inhibitor tozasertib but not of alisertib. BMC Res Notes 2015; 8:484. [PMID: 26415506 PMCID: PMC4587578 DOI: 10.1186/s13104-015-1405-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 08/31/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Recently, we have shown that the ATP-binding cassette (ABC) transporter ABCB1 interferes with the anti-cancer activity of the pan-aurora kinase inhibitor tozasertib (VX680, MK-0457) but not of the aurora kinase A and B inhibitor alisertib (MLN8237). Preliminary data had suggested tozasertib also to be a substrate of the ABC transporter ABCG2, another ABC transporter potentially involved in cancer cell drug resistance. Here, we studied the effect of ABCG2 on the activity of tozasertib and alisertib. RESULTS The tozasertib concentration that reduces cell viability by 50% (IC50) was dramatically increased in ABCG2-transduced UKF-NB-3(ABCG2) cells (48.8-fold) compared to UKF-NB-3 cells and vector-transduced control cells. The ABCG2 inhibitor WK-X-34 reduced tozasertib IC50 to the level of non-ABCG2-expressing UKF-NB-3 cells. Furthermore, ABCG2 depletion from UKF-NB-3(ABCG2) cells using another lentiviral vector expressing an shRNA against the bicistronic mRNA of ABCG2 and eGFP largely re-sensitised these cells to tozasertib. In contrast, alisertib activity was not affected by ABCG2 expression. CONCLUSIONS Tozasertib but not alisertib activity is affected by ABCG2 expression. This should be considered within the design and analysis of experiments and clinical trials investigating these compounds.
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Affiliation(s)
- Martin Michaelis
- Institut für Medizinische Virologie, Klinikum der Goethe-Universität, Paul Ehrlich-Str. 40, 60596, Frankfurt Am Main, Germany. .,Centre for Molecular Processing and School of Biosciences, University of Kent, Canterbury, CT2 7NJ, UK.
| | - Florian Selt
- Institut für Medizinische Virologie, Klinikum der Goethe-Universität, Paul Ehrlich-Str. 40, 60596, Frankfurt Am Main, Germany. .,Deutsches Krebsforschungszentrum (DKFZ), Klinische Kooperationseinheit Pädiatrische Onkologie (G340) and Pädiatrie III, Zentrum für Kinder- und Jugendmedizin, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
| | - Florian Rothweiler
- Institut für Medizinische Virologie, Klinikum der Goethe-Universität, Paul Ehrlich-Str. 40, 60596, Frankfurt Am Main, Germany.
| | - Michael Wiese
- Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany.
| | - Jindrich Cinatl
- Institut für Medizinische Virologie, Klinikum der Goethe-Universität, Paul Ehrlich-Str. 40, 60596, Frankfurt Am Main, Germany.
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8
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Abstract
With an aim to generate non-toxic, specific and highly potent multidrug resistance (MDR) modulators, a novel series of anthranilic acid amide-substituted tariquidar derivatives were synthesized. The new compounds were evaluated for their cytotoxicity toward normal human colon fibroblasts (CCD18-Co), human gastric epithelial cell line (HFE) and primary rat liver cells, and for their ability to inhibit P-gp/BCRP-mediated drug efflux and reversal of P-gp and BCRP-mediated MDR in parental and drug-resistant cancer cell lines (LCC6 MDR1, MCF-7 FLV1000, R-HepG2, SW620-Ad300). While tariquidar is highly toxic to normal cells, the new derivatives exhibited much lower or negligible cytotoxicity. Some of the new tariquidar derivatives inhibited both P-gp and BCRP-mediated drug efflux whereas a few of them bearing a sulfonamide functional group (1, 5, and 16) are specific to P-gp. The new compounds were also found to potentiate the anticancer activity of the transporter substrate anticancer drugs in the corresponding transporter-overexpressing cell lines. The extent of resistance reversal was found to be consistent with the transporter inhibitory effect of the new derivatives. To further understand the mechanism of P-gp and BCRP inhibition, the tariquidar derivatives were found to interact with the transporters using an antibody-based UIC2 or 5D3 shift assay. Moreover, the transporters-inhibiting derivatives were found to modulate the ATPase activities of the two MDR transporters. Our data thus advocate further development of the new compounds for the circumvention of MDR.
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9
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Synthesis and characterization of the anticancer and metal binding properties of novel pyrimidinylhydrazone derivatives. J Inorg Biochem 2015; 144:18-30. [DOI: 10.1016/j.jinorgbio.2014.12.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 12/12/2014] [Accepted: 12/12/2014] [Indexed: 11/19/2022]
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10
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Identification of flubendazole as potential anti-neuroblastoma compound in a large cell line screen. Sci Rep 2015; 5:8202. [PMID: 25644037 PMCID: PMC4314641 DOI: 10.1038/srep08202] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 01/12/2015] [Indexed: 11/28/2022] Open
Abstract
Flubendazole was shown to exert anti-leukaemia and anti-myeloma activity through inhibition of microtubule function. Here, flubendazole was tested for its effects on the viability of in total 461 cancer cell lines. Neuroblastoma was identified as highly flubendazole-sensitive cancer entity in a screen of 321 cell lines from 26 cancer entities. Flubendazole also reduced the viability of five primary neuroblastoma samples in nanomolar concentrations thought to be achievable in humans and inhibited vessel formation and neuroblastoma tumour growth in the chick chorioallantoic membrane assay. Resistance acquisition is a major problem in high-risk neuroblastoma. 119 cell lines from a panel of 140 neuroblastoma cell lines with acquired resistance to various anti-cancer drugs were sensitive to flubendazole in nanomolar concentrations. Tubulin-binding agent-resistant cell lines displayed the highest flubendazole IC50 and IC90 values but differences between drug classes did not reach statistical significance. Flubendazole induced p53-mediated apoptosis. The siRNA-mediated depletion of the p53 targets p21, BAX, or PUMA reduced the neuroblastoma cell sensitivity to flubendazole with PUMA depletion resulting in the most pronounced effects. The MDM2 inhibitor and p53 activator nutlin-3 increased flubendazole efficacy while RNAi-mediated p53-depletion reduced its activity. In conclusion, flubendazole represents a potential treatment option for neuroblastoma including therapy-refractory cells.
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Thai KM, Huynh NT, Ngo TD, Mai TT, Nguyen TH, Tran TD. Three- and four-class classification models for P-glycoprotein inhibitors using counter-propagation neural networks. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2015; 26:139-163. [PMID: 25588022 DOI: 10.1080/1062936x.2014.995701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
P-glycoprotein (P-gp) is an ATP binding cassette (ABC) transporter that helps to protect several certain human organs from xenobiotic exposure. This efflux pump is also responsible for multi-drug resistance (MDR), an issue of the chemotherapy approach in the fight against cancer. Therefore, the discovery of P-gp inhibitors is considered one of the most popular strategies to reverse MDR in tumour cells and to improve therapeutic efficacy of commonly used cytotoxic drugs. Until now, several generations of P-gp inhibitors have been developed but they have largely failed in preclinical and clinical studies due to lack of selectivity, poor solubility and severe pharmacokinetic interactions. In this study, three models (SION, SIO, SIN) to classify specific 'true' P-gp inhibitors as well as three other models (CPBN, CPB1, CPN) to distinguish between P-gp inhibitors, CYP 3A inhibitors and co-inhibitors of these proteins with rather high accuracy values for the test set and the external set were generated based on counter-propagation neural networks (CPG-NN). Such three and four-class classification models helped provide more information about the bioactivities of compounds not only on one target (P-gp), but also on a combination of multiple targets (P-gp, CYP 3A).
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Affiliation(s)
- K-M Thai
- a Department of Medicinal Chemistry, School of Pharmacy , University of Medicine and Pharmacy at Ho Chi Minh City , Ho Chi Minh City , Viet Nam
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12
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Liu B, Qiu Q, Zhao T, Jiao L, Hou J, Li Y, Qian H, Huang W. Discovery of novel P-glycoprotein-mediated multidrug resistance inhibitors bearing triazole core via click chemistry. Chem Biol Drug Des 2014; 84:182-91. [PMID: 24750961 DOI: 10.1111/cbdd.12301] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 02/04/2014] [Accepted: 02/12/2014] [Indexed: 11/28/2022]
Abstract
A novel series of P-glycoprotein (P-gp)-mediated multidrug resistance (MDR) inhibitors bearing a triazol-phenethyl-tetrahydroisoquinoline scaffold were designed and synthesized via click chemistry. Most of the synthesized compounds showed higher reversal activity than verapamil (VRP). Among them, the most potent compound 5 showed a comparable activity with the known potent P-gp inhibitor WK-X-34 with lower cytotoxicity (IC50s > 100 μm). Compared with VRP, compound 5 exhibited more potency in increasing drug accumulation in K562/A02 MDR cells. Moreover, compound 5 persisted longer chemo-sensitizing effect (>24 h) than VRP (<6 h) with reversibility. Given the low intrinsic cytotoxicity and the potent reversal activity, compound 5 may represent a promising candidate for developing P-gp-mediated MDR inhibitor.
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Affiliation(s)
- Baomin Liu
- State Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
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13
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Pajeva IK, Sterz K, Christlieb M, Steggemann K, Marighetti F, Wiese M. Interactions of the multidrug resistance modulators tariquidar and elacridar and their analogues with P-glycoprotein. ChemMedChem 2013; 8:1701-13. [PMID: 23943604 DOI: 10.1002/cmdc.201300233] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/10/2013] [Indexed: 11/10/2022]
Abstract
Tariquidar and elacridar are among the most potent inhibitors of the multidrug resistance transporter P-glycoprotein (P-gp), but how they interact with the protein is yet unknown. In this work, we describe a possible way in which these inhibitors interact with P-gp. We rely on structure-activity relationship analysis of a small group of tariquidar and elacridar analogues that was purposefully selected, designed, and tested. Structural modifications of the compounds relate to the presence or absence of functional groups in the tariquidar and elacridar scaffolds. The activity of the compounds was evaluated by their effects on the accumulation of P-gp substrates rhodamine 123 and Hoechst 33342 in resistant tumor cells. The data allow estimation of the ability of the compounds to interact with the experimentally proposed R- and H-sites to which rhodamine 123 and Hoechst 33342 bind, respectively. Using an inward-facing homology model of human P-gp based on the crystallographic structure of mouse P-gp, we demonstrate that these binding sites may overlap with the binding sites of the QZ59 ligands co-crystallized with mouse P-gp. Based on this SAR analysis, and using flexible alignment and docking, we propose possible binding modes for tariquidar and elacridar. Our results suggest the possibility for the studied compounds to bind to sites that coincide or overlap with the binding sites of rhodamine 123 and Hoechst 33342. These results contribute to further understanding of structure-function relationships of P-gp and can help in the design of selective and potent P-gp inhibitors with potential clinical use.
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Affiliation(s)
- Ilza K Pajeva
- Institute of Biophysics & Biomedical Engineering (IBPhBME), Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 105, 1113 Sofia (Bulgaria).
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14
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Sterz K, Möllmann L, Jacobs A, Baumert D, Wiese M. Activators of P-glycoprotein: Structure-activity relationships and investigation of their mode of action. ChemMedChem 2010; 4:1897-911. [PMID: 19777523 DOI: 10.1002/cmdc.200900283] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
P-glycoprotein (P-gp), a 170 kDa plasma membrane protein, is one of the most relevant ABC transporters involved in the development of multidrug resistance (MDR). Understanding its mechanism of transport as well as its interactions with various substrates are basic requirements for the development of adequate therapeutic approaches to overcome this kind of resistance against a broad spectrum of structurally unrelated cytostatic drugs. P-gp modulators (activators) that exert various effects on the intracellular accumulation of distinct P-gp substrates are useful tools for investigating the interactions between multiple drug binding sites of this transport protein. In this study, a series of 27 different imidazobenzothiazoles and imidazobenzimidazoles structurally related to the known P-gp activators QB102 and QB11 was designed, and their modulating properties were investigated. Most of them were able to stimulate P-gp-mediated efflux of daunorubicin and rhodamine 123 in a concentration-dependent manner, but some compounds also displayed weak inhibitory effects. Additionally, P-gp-mediated efflux of vinblastine and colchicine was inhibited by several compounds. Therefore, we concluded that the novel compounds bind to the H site of P-gp and activate the efflux of specific substrates of the R site in a positive cooperative manner, whereas binding of H-type substrates is inhibited competitively. This hypothesis is confirmed by the observation that the modulators do not influence hydrolysis of ATP or its affinity toward P-gp.
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Affiliation(s)
- Katja Sterz
- Institute of Pharmacy, University of Bonn, Germany
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15
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Colabufo NA, Berardi F, Cantore M, Contino M, Inglese C, Niso M, Perrone R. Perspectives of P-Glycoprotein Modulating Agents in Oncology and Neurodegenerative Diseases: Pharmaceutical, Biological, and Diagnostic Potentials. J Med Chem 2009; 53:1883-97. [DOI: 10.1021/jm900743c] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Nicola Antonio Colabufo
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Francesco Berardi
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Mariangela Cantore
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Marialessandra Contino
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Carmela Inglese
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Mauro Niso
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
| | - Roberto Perrone
- Dipartimento Farmacochimico, Universitá degli Studi di Bari, Facoltá di Farmacia, Via Orabona 4, 70125, Bari, Italy
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Häcker HG, Leyers S, Wiendlocha J, Gütschow M, Wiese M. Aromatic 2-(thio)ureidocarboxylic acids as a new family of modulators of multidrug resistance-associated protein 1: synthesis, biological evaluation, and structure-activity relationships. J Med Chem 2009; 52:4586-95. [PMID: 19580319 DOI: 10.1021/jm900688v] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four series of aromatic carboxylic acids were prepared with a urea or thiourea moiety at the neighboring position to the carboxyl group and benzene or thiophene as aromatic scaffold. Using a calcein AM assay, these compounds were evaluated as inhibitors of multidrug resistance-associated protein 1 (MRP1) and selected compounds were examined toward P-glycoprotein (P-gp) as well as breast cancer resistance protein (BCRP) to assess selectivity for MRP1. Two 2-thioureidobenzo[b]thiophene-3-carboxylic acids (48, 49) were identified as particularly potent inhibitors of MRP1, with IC50 values of around 1 microM. The structural features of this new family of nontoxic MRP1 inhibitors include a (thio)urea disubstituted with preferentially two alkyl groups at the terminal nitrogen and an additional fused aromatic ring.
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Affiliation(s)
- Hans-Georg Häcker
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
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Kühnle M, Egger M, Müller C, Mahringer A, Bernhardt G, Fricker G, König B, Buschauer A. Potent and selective inhibitors of breast cancer resistance protein (ABCG2) derived from the p-glycoprotein (ABCB1) modulator tariquidar. J Med Chem 2009; 52:1190-7. [PMID: 19170519 DOI: 10.1021/jm8013822] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The efflux pumps ABCB1 (p-gp, MDR1) and ABCG2 (BCRP) are expressed to a high extent by endothelial cells at the blood-brain barrier (BBB) and other barrier tissues and are involved in drug resistance of tumor (stem) cells. Whereas numerous ABCB1 inhibitors are known, only a few ABCG2 modulators with submicromolar activity have been published. Starting from tariquidar (4) analogues as ABCB1 modulators, minimal structural modifications resulted in a drastic shift in favor of ABCG2 inhibition. Highest potency was found when the 3,4-dimethoxy-2-(quinoline-3-carbonylamino)benzoyl moiety in 4 was replaced with a 4-methoxycarbonylbenzoyl moiety bearing a hetarylcarboxamido group in 3-position, e.g., quinoline-3-carboxamido (5, IC(50): 119 nM) or quinoline-2-carboxamido (6, IC(50): 60 nM, flow cytometric mitoxantrone efflux assay, topotecan-resistant MCF-7 breast cancer cells); the selectivity for ABCG2 over ABCB1 was about 100-500 fold and the compounds were inactive at ABCC2 (MRP2). Chemosensitivity assays against MCF-7/Topo cells revealed that the nontoxic inhibitor 6 completely reverted ABCG2-mediated topotecan resistance at concentrations >100 nM, whereas 5 showed ABCG2 independent cytotoxicity. ABCG2 inhibitors might be useful for cancer treatment with respect to reversal of multidrug resistance, overcoming the BBB and targeting of tumor stem cells.
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Affiliation(s)
- Matthias Kühnle
- Department of Pharmaceutical/Medicinal Chemistry II, Institute of Pharmacy, Faculty of Chemistry and Pharmacy, University of Regensburg, D-93053 Regensburg, Germany
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Pajeva IK, Wiese M. Structure-activity relationships of tariquidar analogs as multidrug resistance modulators. AAPS JOURNAL 2009; 11:435-44. [PMID: 19504188 DOI: 10.1208/s12248-009-9118-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Accepted: 05/18/2009] [Indexed: 11/30/2022]
Abstract
The review summarizes the most recent achievements in structure-activity relationship (SAR) studies of tariquidar and its analogs. Tariquidar is one of the most promising representatives of the third generation of multidrug resistance (MDR) modulators created so far. This fact determines the strong interest of different research groups in the development of tariquidar-like structures as selective inhibitors of MDR transporters in resistant human cancer cells. After the discovery of tariquidar, a number of analogs have been synthesized and pharmacologically tested, thus supplying good data for comprehensive analyses of their structure-activity relationships. In the review, the structural and pharmacological data of newly synthesized tariquidar-like compounds are first presented. Next, the main achievements in the SAR studies are described focusing on two main transport proteins: P-glycoprotein and breast cancer resistance protein. The reported results are discussed from the point of view of their significance and importance for future directions in the rational design of effective MDR modulators.
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Affiliation(s)
- Ilza K Pajeva
- Centre of Biomedical Engineering, Bulgarian Academy of Science, Sofia, Bulgaria
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A 4-aminobenzoic acid derivative as novel lead for selective inhibitors of multidrug resistance-associated proteins. Bioorg Med Chem Lett 2008; 18:4761-3. [DOI: 10.1016/j.bmcl.2008.07.127] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Revised: 07/29/2008] [Accepted: 07/30/2008] [Indexed: 11/17/2022]
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Shukla S, Wu CP, Ambudkar SV. Development of inhibitors of ATP-binding cassette drug transporters: present status and challenges. Expert Opin Drug Metab Toxicol 2008; 4:205-23. [PMID: 18248313 DOI: 10.1517/17425255.4.2.205] [Citation(s) in RCA: 182] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Multi-drug resistance (MDR) of cancer cells is an obstacle to effective chemotherapy of cancer. The ATP-binding cassette (ABC) transporters, including P-glycoprotein (ABCB1), MRP1 (ABCC1) and ABCG2, play an important role in the development of this resistance. An attractive approach to overcoming MDR is the inhibition of the pumping action of these transporters. Several inhibitors/modulators of ABC transporters have been developed, but cytotoxic effects and adverse pharmacokinetics have prohibited their use. The ongoing search for such inhibitors/modulators that can be applied in the clinic has led to three generations of compounds. The most recent inhibitors are more potent and less toxic than first-generation compounds, yet some are still prone to adverse effects, poor solubility and unfavorable changes in the pharmacokinetics of the anticancer drugs. OBJECTIVE This review provides an update of the published work on the development of potent modulators to overcome MDR in cancer cells, their present status in clinical studies and suggestions for further improvement to obtain better inhibitors. METHODS This review summarizes recent advances in the development of less toxic modulators, including small molecules and natural products. In addition, a brief overview of other novel approaches that can be used to inhibit ABC drug transporters mediating MDR has also been provided. CONCLUSION The multifactorial nature of MDR indicates that it may be important to develop modulators that can simultaneously inhibit both the function of the drug transporters and key signaling pathways, which are responsible for development of this phenomenon.
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Affiliation(s)
- Suneet Shukla
- National Cancer Institute, Laboratory of Cell Biology, Center for Cancer Research, NIH, Bethesda, MD 20892, USA
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Polgar O, Robey RW, Bates SE. ABCG2: structure, function and role in drug response. Expert Opin Drug Metab Toxicol 2008; 4:1-15. [PMID: 18370855 DOI: 10.1517/17425255.4.1.1] [Citation(s) in RCA: 165] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
ABCG2 was discovered in multi-drug-resistant cancer cells, with the identification of chemotherapeutic agents, such as mitoxantrone, flavopiridol, methotrexate and irinotecan as substrates. Later, drugs from other therapeutic groups were also described as substrates, including antibiotics, antivirals, HMG-CoA reductase inhibitors and flavonoids. An expanding list of compounds inhibiting ABCG2 has also been generated. The wide variety of drugs transported by ABCG2 and its normal tissue distribution with highest levels in the placenta, intestine and liver, suggest a role in protection against xenobiotics. ABCG2 also has an important role in the pharmacokinetics of its substrates. Single nucleotide polymorphisms of the gene were shown to alter either plasma concentrations of substrate drugs or levels of resistance against chemotherapeutic agents in cell lines. ABCG2 was also described as the determinant of the side population of stem cells. All these aspects of the transporter warrant further research aimed at understanding ABCG2's structure, function and regulation of expression.
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Affiliation(s)
- Orsolya Polgar
- National Cancer Institute, Medical Oncology Branch, Center for Cancer Research, NIH, 9000 Rockville Pike, Building 10, Room 13N240, Bethesda, MD 20892, USA
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Functional assay and structure–activity relationships of new third-generation P-glycoprotein inhibitors. Bioorg Med Chem 2008; 16:2448-62. [DOI: 10.1016/j.bmc.2007.11.057] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Revised: 11/15/2007] [Accepted: 11/21/2007] [Indexed: 11/20/2022]
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