HSP990 (NVP-HSP990)

Catalog No.S7097 Batch:S709701

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Technical Data

Formula

C20H18FN5O2
Molecular Weight 379.39 CAS No. 934343-74-5
Solubility (25°C)* In vitro DMSO 75 mg/mL (197.68 mM)
Water Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or 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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description HSP990 (NVP-HSP990) is a novel, potent and selective HSP90 inhibitor for HSP90α/β with IC50 of 0.6 nM/0.8 nM. NVP-HSP990 induces cell cycle arrest and apoptosis.
Targets
HSP90α [1]
(Cell-free assay)		 HSP90β [1]
(Cell-free assay)
0.6 nM 0.8 nM
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]
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]
Features NVP-HSP990 is an orally available HSP90 inhibitor and is structurally distinct from other clinical HSP90 inhibitors.

Protocol (from reference)

Kinase Assay:

[1]
  • 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.
Cell Assay:

[2]
  • Cell lines

    GICs

  • Concentrations

    ~1 μM

  • Incubation Time

    7 days

  • Method

    Dissociated GICs are plated at 10 cells/μL in 6-well plates and incubated with various concentrations of NVP-HSP990 for 7 days. Formed tumorspheres are dissociated into single cells and counted with hemocytometer using 0.2% Trypan blue exclusion.
Animal Study:

[1]
  • Animal Models

    GTL-16, NCI-H1975, BT474, and MV4;11 tumor xenografted nude and SCID mice models

  • Dosages

    15 mg/kg

  • Administration

    Oral

Customer Product Validation

Data from [Data independently produced by , , Cancer Sci, 2018, 109(2):373-383]

Data from [Data independently produced by , , Am J Transl Res,2015, 7(12):2589-602.]

Selleck's HSP990 (NVP-HSP990) has been cited by 14 publications

A novel PET probe to selectively image heat shock protein 90α/β isoforms in the brain [ EJNMMI Radiopharm Chem, 2024, 9(1):19] PubMed: 38436869
Role of heat shock protein 90 as an antiviral target for swine enteric coronaviruses [ Virus Res, 2023, 329:199103] PubMed: 36963723
HSP90 inhibitor NVP-HSP990 alleviates rotavirus infection [ bioRxiv, 2023, 10.1101/2023.06.15.545197] PubMed: none
Deciphering the immunopeptidome in vivo reveals new tumour antigens [ Nature, 2022, 607(7917):149-155] PubMed: 35705813
The AhR-SRC axis as a therapeutic vulnerability in BRAFi-resistant melanoma [ EMBO Mol Med, 2022, 14(12):e15677] PubMed: 36305167
A STUB1 ubiquitin ligase/CHIC2 protein complex negatively regulates the IL-3, IL-5, and GM-CSF cytokine receptor common β chain (CSF2RB) protein stability [ J Biol Chem, 2022, 298(10):102484] PubMed: 36108743
Drosophila melanogaster as a model for unraveling unique molecular features of epilepsy elicited by human GABA transporter 1 variants [ Front Neurosci, 2022, 16:1074427] PubMed: 36741049
Deciphering the tumor-specific immunopeptidome in vivo with genetically engineered mouse models [ BioRxiv, 2021, 10.1101/2021.06.30.450516] PubMed: none
Hsp90 inhibitor HSP990 in very low dose upregulates EAAT2 and exerts potent antiepileptic activity [ Theranostics, 2020, 10(18):8415-8429] PubMed: 32724478
Targeting NAD+ Biosynthesis Overcomes Panobinostat and Bortezomib-Induced Malignant Glioma Resistance [ Mol Cancer Res, 2020, 18(7):1004-1017] PubMed: 32238439

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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