Rotigaptide  (Synonyms: ZP123)

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].

IC50: connexin 43 (Cx43)^[1]

Rotigaptide (100 nM; 24 hours) has a positive effect on cycloheximide-mediated decrease in Cx43 protein levels in cultured neonatal ventricular myocytes^[1].
Rotigaptide (100 nM; 24 hours) dose not affect INS-1 cell apoptosis itself. And it significantly reduces apoptosis in cytokine-exposed cells ~10% at IL-1b concentrations above 15 pg/ml in rat insulin-producing INS-1 cells^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Rotigaptide (intravenous administration; 300 mg/kg; single dose) treatment in mice and rats does not result in toxicity in either species.
In escalating dose studies, Rotigaptide (continuous intravenous infusion; 5-14 days) in rats (100 mg/kg) and dogs (10 mg/kg) are well tolerated and produces no compound-related effects or histological toxicological findings^[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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C₂₈H₃₉N₇O₉

355151-12-1

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• [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.  [Content Brief]

  [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.  [Content Brief]