TRV120027 TFA, a β-arrestin-1-biased agonist of the angiotensin II receptor type 1 (AT1R), engages ß-arrestins while blocking G-protein signaling[1]. TRV120027 TFA induces acute catecholamine secretion through cation channel subfamily C3 (TRPC3) coupling, promotes the formation of a macromolecular complex composed of AT1R-β-arrestin-1-TRPC3-PLCγ at the plasma membrane. TRV120027 TFA inhibits angiotensin II-mediated vasoconstriction and increases cardiomyocyte contractility. TRV120027 TFA has the potential for the acute decompensated heart failure (ADHF) treatment[2].
[1]. Boerrigter G, et al. TRV120027, a novel β-arrestin biased ligand at the angiotensin II type I receptor, unloads the heart and maintains renal function when added to furosemide in experimental heart failure.Circ Heart Fail. 2012 Sep 1;5(5):627-34. Epub 2012 Aug 13. [2]. Liu CH, et al. Arrestin-biased AT1R agonism induces acute catecholamine secretion through TRPC3 coupling.Nat Commun. 2017 Feb 9;8:14335.