T3Inh-1

• CAT Number: I044348
• CAS Number: 50440-30-7
• Molecular Formula: C27H20N6O3
• Molecular Weight: 476.49
• Purity: ≥95%
• Synonyms: 4-[(6-nitroquinolin-4-yl)amino]-N-[4-(pyridin-4-ylamino)phenyl]benzamide
• InChI: InChI=1S/C27H20N6O3/c34-27(32-21-7-5-19(6-8-21)30-22-11-14-28-15-12-22)18-1-3-20(4-2-18)31-26-13-16-29-25-10-9-23(33(35)36)17-24(25)26/h1-17H,(H,28,30)(H,29,31)(H,32,34)
• InChIKey: KUBNLSZSAIOAMS-UHFFFAOYSA-N
• SMILES: C1=CC(=CC=C1C(=O)NC2=CC=C(C=C2)NC3=CC=NC=C3)NC4=C5C=C(C=CC5=NC=C4)[N+](=O)[O-]

T3Inh-1 is a potent and selective inhibitor of ppGalNAc-T3 (IC50=7 µM). T3Inh-1 reduces FGF23 hormone levels in both tissue cells and mice, without causing any toxic side effects. T3Inh-1 also prevents breast cancer cells. The enzyme ppGalNAc-T3 is implicated in at least two medically important pathways: cancer metastasis and stabilization of FGF23 (regulates phosphate levels in the bloodstream)[1].
T3Inh-1 (5 µM; 24-48 hours; 5 µM; MDA-MB231 cells) is strikingly effective, inhibiting migration by >80% and invasion by 98% while causing no discernable effect on cell proliferation[1].
T3Inh-1 exhibits no toxicity and did not affect HEK cell proliferation[1].
T3Inh-1 (HEK cells; 6 hours)increases cleavage of FGF23[1].
T3Inh-1 (25 or 50 mg/kg; i.p.) blocks ppGalNAc-T3-mediated glycan-masking of FGF23 thereby increasing its cleavage[1].

Reference

[1]. Song L, et al. Inhibitor of ppGalNAc-T3-mediated O-glycosylation blocks cancer cell invasiveness and lowers FGF23 levels. Elife. 2017;6:e24051. Published 2017 Mar 31.
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