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 (IC
50 = 2.40 and 1.30 nM, respectively; [ATP] = 6 µM) with respect to both potency and selectivity over ALK3/4/5 (IC
50 = 0.858, 2.133, and 9.276 µM, respectively). Also a potent RIPK2 inhibitor (IC
50 = 6 nM) with reduced potency against ABL1/c-abl, PDGFR-β, ALK3, and PDGFR-α (IC
50 = 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 (IC
50 = 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 (IC
50 = 2.40 and 1.30 nM, respectively; [ATP] = 6 µM) with respect to both potency and selectivity over ALK3/4/5 (IC
50 = 0.858, 2.133, and 9.276 µM, respectively). Also a potent RIPK2 inhibitor (IC
50 = 6 nM) with reduced potency against ABL1/c-abl, PDGFR-β, ALK3, and PDGFR-α (IC
50 = 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-β1-induced SMAD2 activation in PASMC. Effectively inhibits ALK2- and ALK3-mediated C2C12 osteogenic differentiation (IC
50 = 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).