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.
2 Customer Reviews
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.
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Choose Selective HSP (e.g. HSP90) Inhibitors
|Description||NVP-HSP990 (HSP990) is a novel, potent and selective HSP90 inhibitor for HSP90α/β with IC50 of 0.6 nM/0.8 nM.|
|Features||NVP-HSP990 is an orally available HSP90 inhibitor and is structurally distinct from other clinical HSP90 inhibitors.|
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.  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. 
|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. |
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.
|In vitro||DMSO||75 mg/mL (197.68 mM)|
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