Molecular Weight(MW): 373.49
SANT-1 directly binds to Smoothened (Smo) receptor with Kd of 1.2 nM and inhibits Smo agonist effects with IC50 of 20 nM.
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Choose Selective Hedgehog/Smoothened Inhibitors
|Description||SANT-1 directly binds to Smoothened (Smo) receptor with Kd of 1.2 nM and inhibits Smo agonist effects with IC50 of 20 nM.|
|Features||Attenuates SAG stimulation of Shh-LIGHT2 cells to a greater extent relative to other antagonists.|
SANT-1 inhibits wild type and oncogenic Smo with equal potency. SANT-1 counteracts SAG-induced pathway activation in Shh-LIGHT2 cells. SANT-1 is able to block BODIPY-cyclopamine binding to Smo-expressing cells, but SANT-1 is unable to inhibit completely this association to background levels. This suggests that their interactions with Smo may alter its affinity for cyclopamine rather than compete directly for cyclopamine binding. SANT-1 blocks pathway activation in SmoA1-LIGHT2 cells with potencies similar to those observed in the Shh-LIGHT2 assay. SANT-1 has disparate inhibitory activities in the Shh-LIGHT2 and BODIPY-cyclopamine assays and is unusually potent at blocking SAG-mediated pathway activation. SANT-1 efficiently inhibited cyclopamine- and jervine- induced translocation of Smo to the primary cilium. SANT-1 inhibits PKA stimulation of Smo trafficking to the proximal cilium. When combined HDAC inhibitor SAHA, SANT-1 is able to suppress cellular proliferation and colony formation of Gemcitabine-resistant pancreatic adenocarcinoma cell lines Panc-1 and BxPC-3. 
|In vitro||DMSO||21 mg/mL (56.22 mM)|
|Ethanol||20 mg/mL (53.54 mM)|
* 1 mg/ml means slightly soluble or insoluble.
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