For research use only.
Catalog No.S7751 Synonyms: C07
Molecular Weight(MW): 556.4
VER-155008 is a potent Hsp70 family inhibitor with IC50 of 0.5 μM, 2.6 μM, and 2.6 μM in cell-free assays for HSP70, HSC70, and GRP78, respectively, >100-fold selectivity over HSP90. VER155008 inhibits autophagy and causes reduced levels of HSP90 client proteins.
Selleck's VER155008 has been cited by 17 publications
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(D) Microglial cultures treated with 300 μM H2O2 alone or 100 μM SNAP plus 300 μM H2O2 for 24 h in the absence or presence of a chemical inhibitor (20 μM VER-155008 or 20 μM SnPP) were subjected to the determination of cell viability (MTT reduction assay). ∗p < 0.05 vs. H2O2 (300 μM) alone. +p < 0.05 vs. SNAP (100 μM) plus H2O2 (300 μM).
Neuroscience, 2014, 281C:164-177.. VER155008 purchased from Selleck.
C, HSP70 protein levels after 1000 ng/mL LPS treatment combined with or without HSP70 inhibitor VER155008 for 48 h using western blot analysis, respectively. D, HSP70 protein levels after heat stress treatment combined with or without HSP70 inhibitor VER155008 for 3 h using western blot analysis.
Cell Signal, 2017, 30:130-141. VER155008 purchased from Selleck.
Purity & Quality Control
Choose Selective HSP (HSP90) Inhibitors
|Description||VER-155008 is a potent Hsp70 family inhibitor with IC50 of 0.5 μM, 2.6 μM, and 2.6 μM in cell-free assays for HSP70, HSC70, and GRP78, respectively, >100-fold selectivity over HSP90. VER155008 inhibits autophagy and causes reduced levels of HSP90 client proteins.|
VER-155008 inhibits the proliferation of human breast and colon cancer cell lines BT474, MB-468, HCT116, and HT29 with GI50s in the range 5.3-14.4 μM, and induces Hsp90 client protein degradation in both HCT116 and BT474 cells. In the 8505C and FRO cells, VER-155008 reduces the cell viability and elevates the percentage of dead cells in a time- and dose- dependent manner. VER-155008 causes a dose-dependent inhibition of cytokine-dependent AML cell proliferation. VER-155008 shows an effective inhibition of cell proliferation in A549 and H1975 cells. 
|In vivo||In HCT116 tumor bearing mice, VER-155008 (25 or 40 mg/kg, i.v.) demonstrates rapid metabolism and clearance, along with tumor levels below the predicted pharmacologically active level.|
|Kinase Assay: ||
Hsc70, Hsp70 and Grp78 ﬂuorescence polarisation (FP) assay:The FP assay for Hsp70 is conducted in aqueous buffer consisting of 100 mM Tris pH 7.4, 150 mM KCl and 5 mM CaCl2, in a final assay volume of 100 µl, using 96 well black polystyrene high bind plates with a Fusion plate reader. N6-(6-amino)hexyl-ATP-5-FAM and the in-house protein preparation of GST-HSP70 3-382 have final concentrations in the assay of 20 nM and 400 nM, respectively. Compounds are tested as 10-point IC50s, with a final DMSO concentration of 5%. Assay mixtures are incubated for 3 h prior to reading on the Fusion (ex 485 nm; em 535 nm). The data is fitted using a 4 parameter logistical data model by XLFit 4. The FP assay for Hsc70 and Grp78 is carried out as described for Hsp70 using the same N6 -(6-amino)hexyl-ATP-5-FAM as the FP probe with the following modiﬁcations. For Hsc70, the protein and probe concentrations are 0.3 μM and 20 nM, respectively with a 30 min incubation at 22℃ while for Grp78, the protein and probe concentrations are 2 μM and 10 nM, respectively with a 2 h incubation at 22℃. The KD for the FAM-ATP probe was 0.24 μM for Hsc70 and 2 μM for Grp78.
-  Massey AJ, et al. Cancer Chemother Pharmacol. 2010, 66(3), 535-545.
-  Kim SH, et al. Biochem Biophys Res Commun. 2014, 454(1), 36-41.
-  Reikvam H, et al. Expert Opin Incestiq Drugs. 2013, 22(5), 551-563.
|In vitro||DMSO||100 mg/mL warmed (179.72 mM)|
* 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.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation ()|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* 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
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
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Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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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