Home Stem Cells & Wnt Wnt/beta-catenin inhibitor PNU-74654 For research use only.

PNU-74654

PNU-74654 disrupts the Wnt signaling pathway via inhibition of the interaction (KD50=450 nM) between β-catenin and Tcf4.

PNU-74654 Chemical Structure

PNU-74654 Chemical Structure

CAS No. 113906-27-7

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PNU-74654 Related Products

Signaling Pathway

Wnt/beta-catenin Signaling Pathways

Wnt/beta-catenin Signaling Pathway

Biological Activity

Description PNU-74654 disrupts the Wnt signaling pathway via inhibition of the interaction (KD50=450 nM) between β-catenin and Tcf4.
Targets
Wnt/β-catenin [1]
(Cell-free assay)
450 nM(Kd)
In vitro
In vitro

The PNU-74654 (PNU) compound is a non-FDAapproved drug which prevents that Tcf from binding to beta-catenin, acting as a Wnt/beta-catenin antagonist. In NCI-H295 cells,PNU-74654 significantly decreases cell proliferation 96 h after treatment, increases early and late apoptosis, decreases nuclear betacatenin accumulation, impairs CTNNB1/beta-catenin expression and increases betacatenin target genes 48 h after treatment. No effects are observed on HeLa cells. In NCI-H295 cells, PNU-74654 decreases cortisol, testosterone and androstenedione secretion 24 and 48 h after treatment. Additionally, in NCI-H295 cells, PNU-74654 decreases SF1 and CYP21A2 mRNA expression as well as the protein levels of STAR and aldosterone synthase 48 h after treatment. In Y1 cells, PNU-74654 impairs corticosterone secretion 24 h after treatment but does not decrease cell viability[2].
Cell Research Cell lines Adrenal (NCI-H295 and Y1) and non-adrenal (HeLa) cell lines
Concentrations 5-200 μM
Incubation Time 24-96 h
Method

NCI-H295 cells are plated at 200,000 cells per well in 24-well plates for gene expression, protein analysis and adrenal steroid measurements. After 48 h, cells are treated with vehicle (0.1%-0.4% DMSO) or 10, 50, 100 and 200 μM PNU-74654. After 24 and 48 h, medium supernatants are collected for adrenal steroid measurements. Adherent cells are fixed for immunofluorescence or harvested for RNA and protein isolation.

Chemical Information & Solubility

Molecular Weight 320.34 Formula

C19H16N2O3
CAS No. 113906-27-7 SDF Download PNU-74654 SDF
Smiles CC1=CC=C(O1)C=NNC(=O)C2=CC=CC=C2OC3=CC=CC=C3
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 64 mg/mL ( (199.78 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 5 mg/mL

Water : Insoluble


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Tech Support

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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