HSP990 (NVP-HSP990) (Synonyms: NVP-HSP990) |
| رقم الكتالوجGC11973 |
HSP990 (NVP-HSP990) هو مثبط قوي وانتقائي Hsp90 ، مع قيم IC50 0.6 و 0.8 و 8.5 نانومتر لـ Hsp90α ؛ ، Hsp90β ؛ ، و Grp94 ، على التوالي.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 934343-74-5
Sample solution is provided at 25 µL, 10mM.
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HSP990 (NVP-HSP990) is a potent and selective inhibitor of HSP90 with IC50 values of 0.6, 0.8 and 8.5 nM for Hsp90α, Hsp90β and Grp94, respectively [1].
Heat shock protein 90 (HSP90) is a chaperone protein that stabilizes proteins against heat stress, assists proteins to fold properly and aids in protein degradation. Also, HSP90 stabilizes proteins required for tumor growth.
HSP990 (NVP-HSP990) is a potent and selective HSP90 inhibitor. NVP-HSP990 bound to the N-terminal ATP-binding domain of Hsp90. NVP-HSP990 inhibited TRAP1 ATPase activity by 90% with IC50 value of 320 nM. In GTL-16 cells, NVP-HSP990 destabilized the Hsp90-p23 complex in a concentration- and time-dependent way. Also, NVP-HSP990 decreased c-Met with EC50 value of 37 nM and induced Hsp70 with EC50 value of 20 nM. NVP-HSP990 inhibited ERK and AKT phosphorylation with EC50 values of 11 and 6 nM respectively and thus inhibited ERK and AKT activation. In five human tumor cell lines, NVP-HSP990 inhibited cell growth with GI50 values of 4-40 nM [1]. In glioma tumor-initiating cells, NVP-HSP990 inhibited cell growth with IC50 value of 10-500 nM in a dose-dependent way and reduced CDK2 and CDK4, thus disrupting cell-cycle control [2].
In the GTL-16 gastric cancer mice model, NVP-HSP990 exhibited antitumor efficacy [1].
References:
[1]. Menezes DL, Taverna P, Jensen MR, et al. The novel oral Hsp90 inhibitor NVP-HSP990 exhibits potent and broad-spectrum antitumor activities in vitro and in vivo. Mol Cancer Ther, 2012, 11(3): 730-739.
[2]. Fu J, Koul D, Yao J, et al. Novel HSP90 inhibitor NVP-HSP990 targets cell-cycle regulators to ablate Olig2-positive glioma tumor-initiating cells. Cancer Res, 2013, 73(10): 3062-3074.
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Kinase experiment: |
His-tagged Hsp90α N-terminal domain protein (N-Hsp90α-His) is diluted to 2× the final concentration in the assay buffer consisting of 50 mM Hepes, pH 7, 6 mM MgCl2, 20 mM KCl and 0.1% BSA. The Hsp90 is dispensed into 96 well polypropylene plates at 50 µL per well. In a separate polypropylene plate, test compounds (NVP-HSP990) are diluted to 40× their final concentration in 100% DMSO. Serial dilutions in DMSO are made in 3-fold increments. 2.5 µL of diluted compounds are transferred to the 50 µL of Hsp90 and mixed. Background wells receive 25 µM (final concentration) radicicol. Biotin-radicicol is diluted into assay buffer at 2× the final concentration and 50 µL are added to the Hsp90/compound plate. DMSO is at a final concentration of 2.5%. Samples are incubated at room temperature for 2 hours before 50 µL are transferred to NeutrAvidin-coated plates. Plates are incubated 1 hour, washed 3× with DELFIA wash buffer (5 mM Tris, pH 7.5, 0.1% Tween 20, 0.1% sodium azide, 0.9% NaCl), and then 50 µL per well of 3 nM Eu-anti-His diluted into DELFIA assay buffer are added. The plates are next incubated 2 hours at room temperature, washed 4×, and then 50 µL enhancement solution are added. Plates are gently shaken for 7-10 minutes before reading in a VICTOR2 instrument[2]. |
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Cell experiment: |
GTL-16 Cells (1 × 103) are plated into 96 well tissue culture plates and cultured at 37°C, 5% CO2. Serially diluted compounds (NVP-HSP990) are added to the cells and are incubated for 72 hrs. at 37°C, 5% CO2. Cell proliferation is determined using Cell Viability assay[2]. |
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Animal experiment: |
Human tumor xenograft models GTL-16, NCI-H1975, BT474, and MV4;11 are implanted subcutaneously with 50% Matrigel in nude or severe combined immunodeficient mice. Mice are randomized into cohorts (10 mice/group for efficacy) when tumors reach 200 to 500 mm3. NVP-HSP990 is administered orally in a vehicle of 100% polyethylene glycol (PEG400). Tumor caliper measurements are converted into tumor volumes using the formula: [length × (width)2]/2. Relative tumor inhibition is calculated as %T/C = 100 × dT/dC, where, dT or dC = difference of mean tumor volume of drug treatment (T) or vehicle (C) on the final day of the study and the randomization volume. Statistical comparisons are conducted using a one-way ANOVA, followed by the Dunn or Tukey post hoc test. Differences are statistically significant at P < 0.05[1]. |
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References: [1]. Menezes DL, et al. The novel oral Hsp90 inhibitor NVP-HSP990 exhibits potent and broad-spectrum antitumor activities in vitro and in vivo. Mol Cancer Ther. 2012 Mar;11(3):730-9. |
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| Cas No. | 934343-74-5 | SDF | |
| المرادفات | NVP-HSP990 | ||
| Chemical Name | (7R)-2-amino-7-[4-fluoro-2-(6-methoxypyridin-2-yl)phenyl]-4-methyl-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-one | ||
| Canonical SMILES | CC1=NC(=NC2=C1C(=O)NC(C2)C3=C(C=C(C=C3)F)C4=NC(=CC=C4)OC)N | ||
| Formula | C20H18FN5O2 | M.Wt | 379.39 |
| الذوبان | ≥ 12.3mg/mL in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.6358 mL | 13.1791 mL | 26.3581 mL |
| 5 mM | 527.2 μL | 2.6358 mL | 5.2716 mL |
| 10 mM | 263.6 μL | 1.3179 mL | 2.6358 mL |
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Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Quality Control & SDS
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- Purity: >98.00%
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- SDS (Safety Data Sheet)
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