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A cell-permeable naphthol compound that inhibits IL-6-stimulated STAT3 Tyr705 phosphorylation and nuclear translocation in HepG2 cells (IC50 = 73 and 39 µM, respectively) by targeting STAT3 SH2 domain peptide-binding pocket (IC50 = 20 µM against EGFR-derived pY-peptide binding), while exhibiting little effect against IFN-γ-stimulated HepG2 cellular STAT1 phosphorylation even at concentrations as high as 300 µM. Shown to preferentially induce apoptosis in cultures expressing constitutively active STAT3 (EC50 = 0.73, 3.96, and 7.01 µM in MDA-MB-468, MDA-MB-231, and MDA-MB-435 cultures, respectively), while being less effective against cells without constitutively active STAT3 (EC50 = 15.5 and 17.19 µM in MDA-MB-453 and MCF7 cultures, respectively).
STAT3 Inhibitor IX, Cpd188 - CAS 823828-18-8 - Calbiochem 分析证书
标题
批号
573125
参考
参考信息概述
Xu, X., et al. 2009. PLoS One4, e4783.
数据表
Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.
A cell-permeable naphthol compound that inhibits IL-6-stimulated STAT3 Tyr705 phosphorylation and nuclear translocation in HepG2 cells (IC50 = 73 and 39 µM, respectively) by targeting STAT3 SH2 domain peptide-binding pocket (IC50 = 20 µM against EGFR-derived pY-peptide binding), while exhibiting little effect against IFN-γ-stimulated HepG2 cellular STAT1 phosphorylation even at concentrations as high as 300 µM. Shown to preferentially induce apoptosis in cultures expressing constitutively active STAT3 (EC50 = 0.73, 3.96, and 7.01 µM in MDA-MB-468, MDA-MB-231, and MDA-MB-435 cultures, respectively), while being less effective against cells without constitutively active STAT3 (EC50 = 15.5 and 17.19 µM in MDA-MB-453 and MCF7 cultures, respectively).
Form
Beige solid
Intert gas (Yes/No)
Packaged under inert gas
CAS number
823828-18-8
Chemical formula
C₁₉H₁₅NO₇S₂
Structure formula
Purity
≥90% by HPLC
Solubility
DMSO (100 mg/ml)
Storage
Protect from light
+2°C to +8°C
Do Not Freeze
Ok to freeze
Special Instructions
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
