HSP990 (NVP-HSP990)
Catalog No.S7097
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Molecular Weight(MW): 379.39
NVP-HSP990 (HSP990) is a novel, potent and selective HSP90 inhibitor for HSP90α/β with IC50 of 0.6 nM/0.8 nM.
Cited by 3 Publications
2 Customer Reviews
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Expression of CD24 and CD44 in HSP90 inhibitor‐treated, shRNA‐transduced HCC1937 cells was analyzed by flow cytometry.
Cancer Sci, 2018, 109(2):373-383. HSP990 (NVP-HSP990) purchased from Selleck.
Time killing curves of C. albicans 103 treated with HSP990 and FLC. FLC-resistant C. albicans 103 were treated with FLC (4 μg/ml), HSP990 (8 μg/ml and FLC+HSP990 (4+8) μg/ml by using initial inoculums of 105 CFU/ml. Aliquots were obtained at the indicated time points and serially dilutions were spreaded on SDA agar plates. Colony counts were determined after 48 h incubation.
Am J Transl Res,2015, 7(12):2589-602.. HSP990 (NVP-HSP990) purchased from Selleck.
Purity & Quality Control
Choose Selective HSP (e.g. HSP90) Inhibitors
Biological Activity
| Description | NVP-HSP990 (HSP990) is a novel, potent and selective HSP90 inhibitor for HSP90α/β with IC50 of 0.6 nM/0.8 nM. | ||||||||||||||||||||||||||||||
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| Features | NVP-HSP990 is an orally available HSP90 inhibitor and is structurally distinct from other clinical HSP90 inhibitors. | ||||||||||||||||||||||||||||||
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| In vitro |
NVP-HSP990 is based on a 2-amino-4-methyl-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-one scaffold, which is structurally distinct from other known HSP90 inhibitors. NVP-HSP990 binds to the N-terminal ATP-binding domain of HSP90. NVP-HSP990 exhibits single digit nanomolar IC50 values on three of the HSP90 isoforms (HSP90α, HSP90β, and GRP94) and 320 nM IC50 value on the fourth (TRAP-1), with selectivity against unrelated enzymes, receptors, and kinases. NVP-HSP990 dissociates the HSP90-p23 complex, depleted client protein c-Met, and induced Hsp70 in c-Met amplified GTL-16 gastric tumor cells. NVP-HSP990 potently inhibites the growth of human cell lines and primary patient samples from a variety of tumor types. [1] NVP-HSP990 displays dose- and time-dependent effects on HSP90 client proteins. NVP-HSP990 inhibits Glioma tumor-initiating cells (GIC) proliferation in all GIC lines, with IC50 values ranging approximately between 10 and 500 nM. Olig2 is a functional marker associated with cell proliferation and response to NVP-HSP990, as NVP-HSP990 attenuated cell proliferation in Olig2-high GIC lines. In addition, NVP-HSP990 disrupted cell-cycle control mechanism by decreasing CDK2 and CDK4 and elevating apoptosis-related molecules. [2] |
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| In vivo | NVP-HSP990 exhibits drug-like pharmaceutical and pharmacologic properties with high oral bioavailability. In the GTL-16 xenograft model, a single oral administration of 15 mg/kg of NVP-HSP990 induced sustained downregulation of c-Met and upregulation of Hsp70. In repeat dosing studies, NVP-HSP990 treatment resulted in tumor growth inhibition of GTL-16 and other human tumor xenograft models driven by well-defined oncogenic HSP90 client proteins. [1] |
Protocol
| Kinase Assay: |
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HSP90 binding, ATPase, and selectivity profiling assays: The potency of HSP90 inhibitors for HSP90α, HSP90β, and Grp94 is determined by AlphaScreen competition binding assays, and activity against TRAP-1 is assessed by an ATPase assay. |
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Solubility (25°C)
| In vitro | DMSO | 75 mg/mL (197.68 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 379.39 |
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| Formula | C20H18FN5O2 |
| CAS No. | 934343-74-5 |
| Storage | powder |
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| Synonyms | N/A |
Bio Calculators
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* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
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Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Molarity Calculator
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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