VX-680 (MK-0457,Tozasertib)
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
VX-680 (also known as MK-0457 or tozasertib), discovered through a molecular screening campaign, is a potent inhibitor of pan-aurora kinase as well as other kinases including Src, GSK3β, Flt3, JAK2, BCR-Abl (wild type) and BCR-Abl (T315I mutant). It binds to the inactive conformations of non-aurora kinases preventing activation, which leads to the inhibition of a wide array of kinases. Having been extensively investigated in cell lines and/or xenografts in animal models, VX-680 exhibits high degree of anti-tumor activity against a broad spectrum of tumor types, including ovarian, renal cell carcinoma, thyroid, oral squamous cell, CML (wild-type and mutant BCR-Abl), AML, and MM.
Reference
Myke R. Green, Joseph E. Woolery, and Daruka Mahadevan. Update on aurora kinase targeted therapeutics in oncology. Expert Opin Drug Discov. 2011; 6(3): 291-307
| Physical Appearance | A solid |
| Storage | Store at -20°C |
| M.Wt | 464.59 |
| Cas No. | 639089-54-6 |
| Formula | C23H28N8OS |
| Solubility | ≥23.25 mg/mL in DMSO, <2.29 mg/mL in EtOH, <2.35 mg/mL in H2O |
| Chemical Name | N-[4-[4-(4-methylpiperazin-1-yl)-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]sulfanylphenyl]cyclopropanecarboxamide |
| SDF | Download SDF |
| Canonical SMILES | CC1=CC(=NN1)NC2=NC(=NC(=C2)N3CCN(CC3)C)SC4=CC=C(C=C4)NC(=O)C5CC5 |
| Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. |
| Kinase experiment [1]: | |
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Kinase inhibition assays |
The consumption of ATP is coupled via the pyruvate kinase/lactic dehydrogenase enzyme pair to the oxidation of NADH, which can be monitored through the decrease in absorption at 340 nm. Reactions contained 100 mM Tris (pH 8), 10 mM MgCl2, 2.2 mM ATP, 1 mM phosphoenolpyruvate, 0.6 mg/mL NADH, 75 units/mL pyruvate kinase, 105 units/mL lactate dehydrogenase, and 0.5 mM substrate peptide (sequence: EAIYAAPFAKKK). Reactions (75 μL) were started by adding sufficient kinase to bring the reactions to 30 nM kinase concentration and the decrease in absorbance was monitored over 30 mins at 30 °C in a microtiter plate spectrophotometer. Inhibitory constants were obtained through addition of 3.75 μL VX-680 in 100% DMSO or DMSO alone. Ki values were calculated as follows, Ki = IC50 / (1 + [S]/Kd), where [S] = [ATP] = 2.2 mM, and Kd (of ATP to Abl) = 70 μM. These values were calculated assuming a Kd (ATP) of 70 μM for wild type and H396P Abl kinase domain. |
| Cell experiment [2]: | |
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Cell lines |
CAL-62 cells |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20 °C for several months. |
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Reaction Conditions |
5 ~ 500 nM; 4 days |
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Applications |
VX-680 prevented the CAL-62 proliferation in a time-dependent manner. |
| Animal experiment [3]: | |
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Animal models |
Female athymic NCr-nu mice bearing HL-60 leukemia cells |
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Dosage form |
12.5, 25, 50 or 70 mg/kg; i.p.; b.i.d., for 13 days |
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Applications |
In female athymic NCr-nu mice bearing HL-60 leukemia cells, VX-680 (70 mg/kg; i.p.; b.i.d., for 13 days) reduced the tumor volume by 98%. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1]. Young MA, Shah NP, Chao LH, Seeliger M, Milanov ZV, Biggs WH 3rd, Treiber DK, Patel HK, Zarrinkar PP, Lockhart DJ, Sawyers CL, Kuriyan J. Structure of the kinase domain of an imatinib-resistant Abl mutant in complex with the Aurora kinase inhibitor VX-680. Cancer Res. 2006 Jan 15;66(2):1007-14. [2]. Arlot-Bonnemains Y, Baldini E, Martin B, Delcros JG, Toller M, Curcio F, Ambesi-Impiombato FS, D'Armiento M, Ulisse S. Effects of the Aurora kinase inhibitor VX-680 on anaplastic thyroid cancer-derived cell lines. Endocr Relat Cancer. 2008 Jun;15(2):559-68. [3]. Harrington EA, Bebbington D, Moore J, Rasmussen RK, Ajose-Adeogun AO, Nakayama T, Graham JA, Demur C, Hercend T, Diu-Hercend A, Su M, Golec JM, Miller KM. VX-680, a potent and selective small-molecule inhibitor of the Aurora kinases, suppresses tumor growth in vivo. Nat Med. 2004 Mar;10(3):262-7. Epub 2004 Feb 22. |
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| Description | VX-680 is an inhibitor of Aurora with Ki values of 0.6 nM, 4.6 nM, 18 nM, 30 nM and 30 nM for Aurora A, C, B, FLT3 and Bcr-Abl, respectively. | |||||
| Targets | Aurora A | Aurora B | Aurora C | FLT3 | Bcr-Abl | |
| IC50 | 0.6 nM (Ki) | 4.6 nM (Ki) | 18 nM (Ki) | 30 nM (Ki) | 30 nM (Ki) | |
Quality Control & MSDS
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Chemical structure
