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.
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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.
(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.
Purity & Quality Control
Choose Selective HSP (e.g. 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.|
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)|
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