Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: 1-(3,4-dihydro-6,7-dimethoxy-2(1H)-isoquinolinyl)-3-(1-methyl-2-phenyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-propen-1-one
Purity: ≥98%
Formula Markup: C28H27N3O3
Formula Weight: 453.5
CAS Number: 1009104-85-1
Notes: SMAD3 is a receptor-regulated intracellular protein that functions downstream of TGF-β and activin receptors and mediates their signaling, playing a role in cell proliferation, differentiation, apoptosis and formation of extracellular matrix. SMAD3 Inhibitor, SIS3 selectively inhibits TGF-β and activin signaling by suppressing Smad3 phosphorylation (IC50 = 3 µM) without affecting the MAPK/p38, ERK, or PI3-kinase signaling pathways.{25955} It has been shown to reduce TGF-β1-induced type 1 procollagen expression and myofibroblast differentiation in normal dermal fibroblasts as well as scleroderma fibroblasts.{25955}