THR-123 is an orally active ALK3 peptide agonist. THR-123 has a relatively weak binding to ALK2, but does not bind to ALK6. THR-123 suppresses inflammation, apoptosis and the epithelial-to-mesenchymal transition program and reverses established fibrosis in five mouse models of acute and chronic renal injury. THR-123 can be used for the study of kidney fibrosis[1].
