Biological Activity
Icatibant acetate (HOE-140 acetate) is a potent and specific peptide antagonist of bradykinin B2 receptor with IC50 and Ki of 1.07 nM and 0.798 nM respectively[1][2][3].
In Vitro
Icatibant (10-30 μM) potentiates angiotensin III, but not angiotensin II (contraction mediated by angiotensin AT1 receptors), and Lys-des-Arg9-bradykinin, but not des-Arg9-bradykinin (effects mediated by the bradykinin B1 receptors)[3].
In Vivo
Icatibant (10-30 μM) potentiates angiotensin III, but not angiotensin II (contraction mediated by angiotensin AT1 receptors), and Lys-des-Arg9-bradykinin, but not des-Arg9-bradykinin (effects mediated by the bradykinin B1 receptors)[3]. Animal Model: Female mice of the CBA/J (H-2k) strain[2]. Dosage: 0.06, 0.3, or 1.5 mg/kg. Administration: Subcutaneous administration twice daily. Result: The length of the large intestine was 93.6±6.8 mm with the 1.5 mg/kg dosage and 94.0±4.1 mm with the 0.3 mg/kg dosage , showing a significant preventive effect on shortening.
References & source
Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.