ML347

ML347 (LDN193719) is a highly selective ALK1/ALK2 inhibitor. ML347 has IC50 values of 46 and 32 nM against ALK1 and ALK2, respectively, >300-fold selective over ALK3. ML347 block the phosphorylation of Smad1/5 by TGF-β1[1][2].

[1]Zhang H, et al. Dual roles of TGF-β signaling in the regulation of dental epithelial cell proliferation. J Mol Histol. 2021 Feb;52(1):77-86. |[2]Engers DW, et al. Synthesis and structure-activity relationships of a novel and selective bone morphogenetic protein receptor (BMP) inhibitor derived from the pyrazolo[1.5-a]pyrimidine scaffold of dorsomorphin: the discovery of ML347 as an ALK2 versus ALK3 selective MLPCN probe. Bioorg Med Chem Lett. 2013 Jun 1;23(11):3248-52.