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1、Hotline: 400-820-3792Inhibitors Agonists Screening Librarieswww.MedChemEOmbrabulin hydrochlorideCat. No.: HY-18256CAS No.: 253426-24-3Synonyms: AVE8062 (hydrochloride); AC7700 (hydrochloride)分式: CHClNO分量: 438.9作靶点: Microtubule/Tubulin作通路: Cell Cycle/DNA Damage; Cytoskeleton储存式: Powder -20C 3 years4C
2、 2 yearsIn solvent -80C 6 months-20C 1 month溶解性数据体外实验 H2O : 20 mg/mL (45.57 mM; Need ultrasonic)Mass Solvent1 mg 5 mg 10 mg Concentration制备储备液1 mM 2.2784 mL 11.3921 mL 22.7842 mL5 mM 0.4557 mL 2.2784 mL 4.5568 mL10 mM 0.2278 mL 1.1392 mL 2.2784 mL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,并请注意储备液的保存式和期限。BIOLOGICA
3、L ACTIVITY物活性 Ombrabulin hydrochlorideCA-4 磷酸酯的衍物,选择性破坏内细胞的微管蛋细胞架,具有抗管作。IC50 & Target tubulin 1体外研究The effect of Ombrabulin (AVE8062) on endothelial or tumor cell viability is examined using the MTT assay.1/3 Master of Small Molecules 您边的抑制剂师www.MedChemEThe IC50 of Ombrabulin for the mouse mesenteri
4、c endothelial cells (MMEC) is 10 nM and ranges between 7and 20 nM for the tumor cell lines (HeyA8, SKOV3ip1, and HeyA8-MDR). Comparative analysis of thenonlinear least-squares regression of the dose-response curves for each agent alone and combinationOmbrabulin /Docetaxel show a significantly lower
5、IC50 than either agent alone (P 1.体内研究 Before performing therapy experiments, the tolerability of various doses of Ombrabulin (AVE8062) rangingfrom 10 to 100 mg/kg is tested given twice weekly via i.v., i.p., or s.c. routes in nude mice (n=3 per group).The i.v. and s.c. routes are not pursued furthe
6、r due to problems with skin or tail vein necrosis. The i.p. routeis well tolerated with doses up to 100 mg/kg. Next, preliminary experiments are done to determine the lowestdose for in vivo therapeutic efficacy. Starting 7 days after tumor cell injection, nude mice (n=5 per group)bearing HeyA8 ovari
7、an cancer cells are treated with either vehicle or Ombrabulin 10, 30, 50, and 100 mg/kgtwice weekly i.p. for 3 weeks. There is 65% reduction in tumor weight in the 30 mg/kg group compared withthe vehicle control group (P30 mg/kg are not significantly better; therefore, the 30 mg/kg dose is selected
8、forsubsequent therapy experiments 1.PROTOCOLCell Assay 1 The capacity of Ombrabulin (AVE8062) to modulate MMEC and HeyA8 cell cycle as well as apoptosis isanalyzed by flow cytometry. In all assays, 3106 tumor cells are seeded into Petri dishes and allowed toadhere overnight. The cultures are then wa
9、shed with PBS and treated with regular medium (negative control)or medium containing Docetaxel, Ombrabulin (HeyA8, 20 nM; MMEC 10 nM), or Ombrabulin plus Docetaxel.For cell cycle analyses, tumor cells are collected by trypsinization and pooled with the cells floating in themedium. The cell suspensio
10、ns are centrifuged for 5 min at 1,500 rpm at room temperature, then washed andfixed with ethanol. For apoptosis analysis, cells are incubated overnight in 50 L of DNA labeling solution (10L of reaction buffer, 0.75 L of TdT enzyme, 8 L of FITC-dUTP, and 32.25 L of distilled water) at roomtemperature
11、. Following the addition of rinse buffer, samples are centrifuged, washed, and fixed in ethanol. Allsamples are then washed with PBS, then resuspended in propidium iodide (50 g/mL) and RNase A (20 g/mL) in PBS for 30 min at room temperature. Stained cells are analyzed on an EPICS XL flow cytometer.T
12、he low-level gate is set at the base of the G1 peak and the percentages of cells within the G1 and G2-Mphases of the cell cycle are determined by analysis with Multicycle 1.MCE has not independently confirmed the accuracy of these methods. They are for reference only.Animal Mice 1Administration 1 Fe
13、male athymic nude mice (6-8 weeks old) are used. For in vivo injection, tumor cells are trypsinized,centrifuged at 1,000 rpm 7 min at 4C, washed twice, and resuspended in serum-free HBSS at aconcentration of 5106 cells/mL (SKOV3ip1 and HeyA8-MDR) and 1.25106 cells/mL (HeyA8). Tumors areestablished b
14、y i.p. injection of cells. Ombrabulin therapy is initiated 7 or 17 days after cell line injection. Mice(n=10 per group) are randomly assigned to the following treatment groups: (a) PBS 200 L, i.p. weekly; (b)Ombrabulin 30 mg/kg dissolved in PBS (pH 5) i.p. twice weekly; (c) Docetaxel 2 mg/kg (HeyA8
15、and HeyA8-MDR) or 1.4 mg/kg (SKOV3ip1) i.p. weekly; (d) Ombrabulin plus Docetaxel (both drugs given at the dosesand frequency described above for each drug alone). The dose of Ombrabulin used in these experiments isoptimized from dose-escalation studies against tumor growth. Mice are monitored for s
16、igns of adverse effectsand tumors are harvested after treatment (range 2-5 weeks). The mouse weight, tumor weight, number of2/3 Master of Small Molecules 您边的抑制剂师www.MedChemEtumor nodules, and volume of ascites are recorded at necropsy.MCE has not independently confirmed the accuracy of these methods. They are for reference only.REFERENCES1. Kim TJ, et al. Antitumor and antivascular effects of AVE8062 in ovarian car
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