Rotigaptide (ZP123) is a novel and specific modulator of connexin 43 (Cx43). Rotigaptide prevents the uncoupling of Cx43-mediated gap junction communication and normalizes cell-to-cell communication during acute metabolic stress. Rotigaptide is a potent antiarrhythmic peptide (AAP) with improved stability and has the potential for the investigation of cardiac arrhythmias-specifically atrial fibrillation[1][2].
[1]. Seyed Mojtaba Ghiasi, et al. The connexin 43 regulator Rotigaptide reduces cytokine-induced cell death in human islets [2]. Stahlhut M, et al. The antiarrhythmic peptide rotigaptide (ZP123) increases connexin 43 protein expression in neonatal rat ventricular cardiomyocytes.Cell Commun Adhes. 2006 Jan-Apr;13(1-2):21-7. [3]. KjØlbye AL, et al. Pharmacological modulation of gap junction function with the novel compound rotigaptide: a promising new principle for prevention of arrhythmias.Basic Clin Pharmacol Toxicol. 2007 Oct;101(4):215-30.