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ICG-001 | Wnt signaling inhibitor

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Catalog #:

Product Description

ICG-001 is a small-molecule antagonist of b-catenin/TCF-mediated transcription (IC50 = 3 uM) and specifically downregulates the expression of a subset of b-catenin/TCF-responsive genes. ICG-001 binds specifically to cyclic AMP response element-binding protein (CBP), therby disrupting interaction of CBP with b-catenin. [1] ICG-001 selectively induces apoptosis in transformed, but not normal colon cells, and reduces in vitro growth of colon carcinoma cells.

ICG-001 has also been shown to attenuate bleomycin-induced lung fibrosis in mice by selective inhibition of Wnt/b-catenin-dependent transcription. [2]

ICG-001 is believed to correct defects in neuronal stem cell differentiation by inhibition of this pathway [3] and associated polytopic protein Presenilin-1 (PS-1), which suggests potential therapies in Alzheimer's disease.

The wnt/b-catenin signalling pathway has been implicated in regulation of cancer stem cells and ICG-001 has been studied in this regard. [4]

Technical information:

Chemical Formula:   C33H32N4O4
CAS #:   847591-62-2;780757-88-2
Molecular Weight:   548.63
Purity:   > 98%
Appearance:   White
Chemical Name:   (6S,9aS)-6-(4-hydroxybenzyl)-N-benzyl-8-(naphthalen-1-ylmethyl)-4,7-dioxo-hexahydro-2H-pyrazino[1,2-a]pyrimidine-1(6H)-carboxamide
Solubility:   Up to 100mM in DMSO
Synonyms:   ICG-001, ICG001

Shipping Condition: The product is shipped in a glass vial at ambient temperature.
Storage condition: For longer shelf life, store solid powder at 4oC desiccated, or store DMSO solution at -20oC.


1. Emami et al., A small molecule inhibitor of beta-catenin/CREB-binding protein transcription. Proc. Natl. Acad. Sci. 2004, 101(34), 12682-12687. Pubmed ID: 15314234
2. Henderson et al., Inhibition of Wnt/beta-catenin/CREB binding protein (CBP) signaling reverses pulmonary fibrosis. Proc. Natl. Acad. Sci. 2010, 107(32), 14309-14314. Pubmed ID: 20660310
3. Teo et al., Specific inhibition of CBP/beta-catenin interaction rescues defects in neuronal differentiation caused by a presenilin-1 mutation. Proc. Natl. Acad. Sci. 2005, 102(34), 12171-12176. Pubmed ID: 16093313
4. Takahashi-Yanaga et al., Targeting Wnt signaling: can we safely eradicate cancer stem cells? Clin. Cancer Res. 2010, 16, 3153-3162. Pubmed ID: 20660310

Other Information:

Product Specification (pdf)
MSDS (pdf)
Certificate of Analysis is available upon request.

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