PNU-74654 is a novel inhibitor of the interaction between ß-catenin and T cell factor 4 (Tcf4), disrupting the Wnt signaling pathway.
Chemical Formula: C19H16N2O3
Exact Mass: 320.1161
Molecular Weight: 320.348
Elemental Analysis: C, 71.24; H, 5.03; N, 8.74; O, 14.98
Appearance: Solid powder
Purity: >98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility: Soluble in DMSO
Shelf Life: >2 years if stored properly
Drug Formulation: This drug may be formulated in DMSO
Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code: 2934.99.9001
PNU-74654 binds to β-catenin with a KD of 450 nM. The Tcf3/Tcf4-binding surface on β-catenin contains a well-defined hot spot around residues K435 and R469. The binding mode of PNU-74654 involves the two narrow pockets on either side of this hot spot. In NCI-H295 cells,PNU-74654 significantly decreases cell proliferation 96 h after treatment, increases early and late apoptosis, decreases nuclear beta-catenin accumulation, impairs CTNNB1/beta-catenin expression and increases beta-catenin 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. The SF1 and CYP21A2 mRNA expression as well as the protein levels of STAR and aldosterone synthase are decreased in NCI-H295 cells after 48 h PNU-74654 treatment. In Y1 cells, PNU-74654 impairs corticosterone secretion 24 h after treatment but does not decrease cell viability.
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