Dofequidar
(Synonyms: 1-[4-[2-羟基-3-(5-喹啉基氧基)丙基]-1-哌嗪基]-2,2-二苯基乙酮) 目录号 : GC35892
A quinoline derivative and inhibitor of multidrug resistance
Cas No.:129716-58-1
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Dofequidar is a quinoline derivative and inhibitor of multidrug resistance.1,2 It inhibits P-glycoprotein in a photolabeling assay when used at a concentration of 100 μM.1 Dofequidar (10 μM) increases intracellular accumulation of [3H]-vincristine in HL-60R cells endogenously expressing the gene encoding multidrug resistance-associated protein (MRP).2 It restores susceptibility to vincristine- or doxorubicin-induced cytotoxicity in vincristine-resistant P388, vincristine-resistant K562, and doxorubicin-resistant K562 cells in a concentration-dependent manner.1 Dofequidar (80 mg/kg twice per day) increases survival in a vincristine-resistant P388 murine leukemia model compared with untreated controls when administered in combination with vincristine .
1.Sato, W., Fukazawa, N., Nakanishi, O., et al.Reversal of multidrug resistance by a novel quinoline derivative, MS-209Cancer Chemother. Pharmacol.35(4)271-277(1995) 2.Narasaki, F., Oka, M., Fukuda, M., et al.A novel quinoline derivative, MS-209, overcomes drug resistance of human lung cancer cells expressing the multidrug resistance-associated protein (MRP) geneCancer Chemother. Pharmacol.40(5)425-432(1997)
| Cas No. | 129716-58-1 | SDF | |
| 别名 | 1-[4-[2-羟基-3-(5-喹啉基氧基)丙基]-1-哌嗪基]-2,2-二苯基乙酮 | ||
| Canonical SMILES | OC(COC1=C2C=CC=NC2=CC=C1)CN3CCN(C(C(C4=CC=CC=C4)C5=CC=CC=C5)=O)CC3 | ||
| 分子式 | C30H31N3O3 | 分子量 | 481.59 |
| 溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.0765 mL | 10.3823 mL | 20.7646 mL |
| 5 mM | 0.4153 mL | 2.0765 mL | 4.1529 mL |
| 10 mM | 0.2076 mL | 1.0382 mL | 2.0765 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Dofequidar fumarate (MS-209) in combination with cyclophosphamide, doxorubicin, and fluorouracil for patients with advanced or recurrent breast cancer
J Clin Oncol 2007 Feb 1;25(4):411-7.PMID:17179098DOI:10.1200/JCO.2006.08.1646.
Purpose: To evaluate the efficacy and tolerability of Dofequidar plus cyclophosphamide, doxorubicin, and fluorouracil (CAF) therapy in comparison with CAF alone, in patients with advanced or recurrent breast cancer. Dofequidar is a novel, orally active quinoline derivative that reverses multidrug resistance. Patients and methods: In this randomized, double-blind, placebo-controlled trial, patients were treated with six cycles of CAF therapy: 28 days/cycle, with doxorubicin (25 mg/m2) and fluorouracil (500 mg/m2) administered on days 1 and 8 and cyclophosphamide (100 mg orally [PO]) administered on day 1 through 14. Patients received Dofequidar (900 mg PO) 30 minutes before each dose of doxorubicin. Primary end point was overall response rate (ORR; partial or complete response). In total, 221 patients were assessable. Results: ORR was 42.6% for CAF compared with 53.1% for Dofequidar + CAF, a 24.6% relative improvement and 10.5% absolute increase (P = .077). There was a trend for prolonged progression-free survival (PFS; median 241 days for CAF v 366 days for Dofequidar + CAF; P = .145). In retrospectively defined subgroups, significant improvement in PFS in favor of Dofequidar was observed in patients who were premenopausal, had no prior therapy, and were stage IV at diagnosis with an intact primary tumor. Except for neutropenia and leukopenia, there was no statistically significant excess of grade 3/4 adverse events compared with CAF. Treatment with Dofequidar did not affect the plasma concentration of doxorubicin. Conclusion: Dofequidar + CAF was well tolerated and is suggested to have efficacy in patients who had not received prior therapy.
Dofequidar fumarate sensitizes cancer stem-like side population cells to chemotherapeutic drugs by inhibiting ABCG2/BCRP-mediated drug export
Cancer Sci 2009 Nov;100(11):2060-8.PMID:19673889DOI:10.1111/j.1349-7006.2009.01288.x.
The ATP-binding cassette (ABC) transporters (ABC-T) actively efflux structurally and mechanistically unrelated anticancer drugs from cells. As a consequence, they can confer multidrug resistance (MDR) to cancer cells. ABC-T are also reported to be phenotypic markers and functional regulators of cancer stem/initiating cells (CSC) and believed to be associated with tumor initiation, progression, and relapse. Dofequidar fumarate, an orally active quinoline compound, has been reported to overcome MDR by inhibiting ABCB1/P-gp, ABCC1/MDR-associated protein 1, or both. Phase III clinical trials suggested that Dofequidar had efficacy in patients who had not received prior therapy. Here we show that Dofequidar inhibits the efflux of chemotherapeutic drugs and increases the sensitivity to anticancer drugs in CSC-like side population (SP) cells isolated from various cancer cell lines. Dofequidar treatment greatly reduced the cell number in the SP fraction. Estimation of ABC-T expression revealed that ABCG2/breast cancer resistance protein (BCRP) mRNA level, but not the ABCB1/P-gp or ABCC1/MDR-associated protein 1 mRNA level, in all the tested SP cells was higher than that in non-SP cells. The in vitro vesicle transporter assay clarified that Dofequidar had the ability to suppress ABCG2/BCRP function. Dofequidar treatment sensitized SP cells to anticancer agents in vitro. We compared the antitumor efficacy of irinotecan (CPT-11) alone with that of CPT-11 plus Dofequidar in xenografted SP cells. Although xenografted SP tumors showed resistance to CPT-11, treatment with CPT-11 plus Dofequidar greatly reduced the SP-derived tumor growth in vivo. Our results suggest the possibility of selective eradication of CSC by inhibiting ABCG2/BCRP.
Gateways to clinical trials
Methods Find Exp Clin Pharmacol 2007 Jun;29(5):359-73.PMID:17805439doi
101M, 12B75; ABT-869, Agomelatine, Alvocidib hydrochloride, Amb a 1 ISS-1018, AMG-386, Andolast, AP-23573, Arsenic trioxide, ATI-7505; BAY-68-4986, Berberine chloride, BNP-1350, BrachySil, Brostallicin hydrochloride; Caldaret hydrate, Cancer vaccine, Cediranib, CHAMPION everolimus-eluting coronary stent, CP-751871; D-4F, Degarelix acetate, Dofequidar fumarate; Ecogramostim, Enzastaurin hydrochloride, Etaracizumab, Everolimus; Fluticasone furoate; Glucarpidase; Hochuekki-to, Human papillomavirus vaccine; Icatibant acetate, INO-1001, Interleukin-21, Irofulven, ISIS-301012, Ixabepilone; KRN-951; Lacosamide; Mecasermin, Mecasermin rinfabate, Mepolizumab, Mesna disulfide, m-NO-ASA; Nematode anticoagulant protein c2, Nilotinib, Nolatrexed dihydrochloride; O6-Benzylguanine; Pemetrexed disodium, Perifosine, Pertuzumab, Plitidepsin, Prasterone, PRO-2000/5, PX-12, Pyridoxal phosphate; Recombinant human soluble thrombomodulin, Retapamulin, Rinfabate, Rubitecan; Seliciclib, SR-271425, STA-4783; T- 2000, Telatinib, Temsirolimus, Terameprocol, Teverelix, Ticagrelor, Tipelukast, Tirapazamine; Uracil; Valspodar, Vatalanib succinate, Velimogene aliplasmid, Vitespen, Volociximab; XL-184.
Drug resistance in chemotherapy for breast cancer
Cancer Chemother Pharmacol 2005 Nov;56 Suppl 1:84-9.PMID:16273361DOI:10.1007/s00280-005-0106-4.
Recent developments with chemotherapy for breast cancer have improved patient survival. However, there continue to be nonresponders to conventional anticancer agents. Multidrug resistance (MDR) is caused by the expression of P-glycoprotein (P-gp) on the cell membrane. The expression of P-gp is encoded by MDR1 mRNA in tumors and is associated with clinical drug resistance. Since P-gp appears to be involved in both acquired and congenital MDR in human cancers, P-gp could be an important target for improving the efficacy of chemotherapy. Recently, we have focused on a therapeutic approach to reduce drug resistance in chemotherapy for breast cancer. Dofequidar fumarate (Dof) is a novel, orally active quinoline derivative that reverses multidrug resistance. In preclinical studies, the inhibition of doxorubicin-resistant cancer cell lines was observed in the presence of Dof + doxorubicin. We conducted clinical trials including Dof + cyclophosphamide (C), doxorubicin (A), and fluorouracil therapy (F) for patients with advanced or recurrent breast cancer. We compared the efficacy and tolerability of Dof + CAF with CAF alone. In this randomized, placebo-controlled trial, all patients were treated with six cycles of CAF therapy. Patients received Dof (900 mg p.o.) 30 min before doxorubicin. The primary endpoint was overall response rate (partial or complete response). In total, 221 patients were evaluable. The overall response rate was 42.6% for CAF alone versus 53.1% for Dof + CAF. Although the response rate improved by more than 10% with the combination of Dof + CAF, it was not statistically significant. Initially, we were expecting more than 20% improvement in the overall response rate. However, Dof significantly improved progression-free survival in patients who were premenopausal (P=0.046), who had received no prior therapy (P<0.01), or patients with advanced (stage IV) primary tumors (P=0.017). In addition, treatment with Dof did not affect the plasma concentration of doxorubicin in patients. These clinical studies indicate that Dof was well tolerated and displayed promising efficacy in patients who had not received prior therapy. The antiestrogens, tamoxifen, and toremifene, may moderate P-gp-related drug resistance in vitro. Toremifene demonstrated a synergistic effect in combination with paclitaxel on various human breast cancer cell lines. Furthermore, a synergistic effect was observed on a multidrug-resistant cell line. This synergistic effect was more potent when paclitaxel was combined with toremifene than with tamoxifen. Clinical benefits in some patients with recurrent breast cancer were reported.
Essential oils from Inula japonica and Angelicae dahuricae enhance sensitivity of MCF-7/ADR breast cancer cells to doxorubicin via multiple mechanisms
J Ethnopharmacol 2016 Mar 2;180:18-27.PMID:26795076DOI:10.1016/j.jep.2016.01.015.
Ethnopharmacological relevance: Angelicae dahurica (Hoffm.) Benth. & Hook.f.ex Franch. & Sav combined with Pueraria and Gastrodia elata Bl. combined with Inula japonica Thunb. are widely used in herb-pairs of traditional chinese medicine. Previous studies have shown that Angelicae dahuricae essential oil (ADO) enhanced puerarin internalization into ABCB1-overexpressed Caco-2 cells. These findings suggest the possibility that essential oils may enhance the absorption via certain mechanisms related to ABCB1 and reverse multidrug resistance (MDR). Aim of the study: ADO and essential oils from Inula japonica (IJO) may reverse ABCB1-mediated MDR, but this ability has not been investigated in detail in the well-established cancer cell lines. In this study, the underlying molecular mechanisms were further investigated to examine how IJO and ADO reverse MDR in the resistant human breast cancer cell line of MCF-7/ADR. Also this work may help uncover the conceivable compatibility mechanisms of above herb-pairs involved in ABCB1. Materials and methods: The MDR human breast cancer MCF-7/ADR cells were treated with IJO, its sesquiterpene component isoalantolactone (ISO) or ADOat non- cytotoxic concentrations. The MDR ability was examined by measuring the sensitivity to doxorubicin (DOX), DOX accumulation and efflux, ABCB1 ATPase activity, ABCB1 expression, membrane fluidity, and stability and localization of lipid rafts and caveolae. Finally, the molecular modeling was performed to postulate how ISO interacts with ABCB1. Results: Treating MCF-7/ADR cells with IJ oil, ISO or AD oil reversed MDR 2- to 3-fold, without affecting the sensitivity of the non-MDR parental cell line. Mechanistic studies showed that these oils down-regulated mRNA and protein expression of ABCB1, and reduced the stability of lipid rafts in the cell membrane, which has previously been shown to reduce ABCB1-mediated transport. On the other hand, IJO, ISO and ADO did not inhibit ABCB1 ATPase activity, and fluorescence polarization experiments showed that low concentrations of the oils did not appear to alter membrane fluidity, unlike some MDR-reversing agents, ISO showed a higher docking score than verapamil but lower than Dofequidar and tariquidar. Conclusions: Our results suggest that IJO, ISO and ADO could reverse MDR by down-regulating ABCB1 expression and reducing lipid raft stability. These findings may be useful for developing safer and effective MDR reversal agents and also help find out the compatibility mechanisms.