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Beschreibung

A cell-permeable pyrazolopyrimidinylquinoline that is superior to Dorsomorphin (Cat. Nos. 171260 and 171261) and DMH1 (Cat. No. 203646) as an ATP-site-targeting, ALK1/2 inhibitor (IC50 = 2.40 and 1.30 nM, respectively, [ATP] = 6 microM) with respect to both potency and selectivity over ALK3/4/5 (IC50 = 0.858, 2.133, and 9.276 microM, respectively). Also a potent RIPK2 inhibitor (IC50 = 6 nM) with reduced potency against ABL1/c-abl, PDGFR-&beta,, ALK3, and PDGFR-&alpha, (IC50 = 40, 68, 85.8, and 650 nM, respectively) and little inhibitory activity toward a panel of more than 190 kinases. Effectively inhibits ALK2- and ALK3-mediated C2C12 osteogenic differentiation (IC50 = 10 and 40.5 nM, respectively) in vitro and prevents constitutively active ALK2 Q207D mutant-induced heterotopic ossification in mice (6 mg/kg/12 h via i.p.) in vivo. A good complement to the ALK4/5/7-selective A-83-01 (Cat. No. 616454)., A cell-permeable pyrazolopyrimidinylquinoline that is superior to Dorsomorphin (Cat. Nos. 171260 and 171261) and DMH1 (Cat. No. 203646) as an ATP-site-targeting, ALK1/2 inhibitor (IC50 = 2.40 and 1.30 nM, respectively, [ATP] = 6 microM) with respect to both potency and selectivity over ALK3/4/5 (IC50 = 0.858, 2.133, and 9.276 microM, respectively). Also a potent RIPK2 inhibitor (IC50 = 6 nM) with reduced potency against ABL1/c-abl, PDGFR-&beta,, ALK3, and PDGFR-&alpha, (IC50 = 40, 68, 85.8, and 650 nM, respectively), while displaying much reduced or no inhibitory activity toward a panel of more than 190 kinases. Selectively blocks BMP7-induced/ALK2-mediated SMAD1/5/8 activation in BMPR2-/- PASMC, but not TGF-&beta,1-induced SMAD2 activation in PASMC. Effectively inhibits ALK2- and ALK3-mediated C2C12 osteogenic differentiation (IC50 = 10 and 40.5 nM upon stimulation with respective ligand BMP6 and BMP4) in vitro and prevents constitutively active ALK2 Q207D mutation-induced heterotopic ossification in mice (6 mg/kg/12 h via i.p.) in vivo. A good complement to the ALK4/5/7-selective A-83-01 (Cat. No. 616454).