| Description | Fasitibant chloride (MEN16132 free base) is a powerful and specific nonpeptide antagonist of the bradykinin B2 receptor (B2R). This compound effectively reduces joint pain and mitigates joint edema in a rat model of Carrageenan-induced arthritis. |
| In vitro | Fasitibant chloride (MEN16132 free base; 1 μM; pre-treatment 30 min before BK) produces a consistent reduction of the FGF-2 expression (BK induced) and decrement of BK induced-FGFR-1 phosphorylation[2]. Fasitibant chloride inhibits the phosphorylation of FRSα, ERK1/2, STAT3 (BK induced; 1 μM; for 15 min), except AKT in HUVEC[2]. Cell Viability Assay[2]Cell Line: human umbilical vein endothelial cells (HUVEC) Concentration: 1 μM Incubation Time: Pre-treatment 30 min before Bradykinin (BK; 1 μM; for 24 h) Result: Produced a consistent reduction of the FGF-2 expression (BK induced) and decrement of BK induced-FGFR-1 phosphorylation (without affecting FGFR-2 activity). |
| In vivo | Fasitibant chloride (MEN16132 free base; 100 μg per knee; injection into the knee; 30 min before λ-carrageenan) inhibits about 40-45% on the carrageenan-induced joint pain and knee joint oedema[1]. Animal Model: Male Wistar rats weighing 250-300 g[1]Dosage: 100 μg per knee Administration: Injection into the knee; 30 min before λ-carrageenan Result: Inhibited about 40-45% on the carrageenan-induced joint pain and knee joint oedema. Reduced the neutrophil infiltration in the synovium by about 60% and the release of prostaglandins by about 30%. |
| Synonyms | MEN16132 free base, Fasitibant chloride |
| molecular weight | 800.23 |
| Molecular formula | C36H49Cl3N6O6S |
| CAS | 1157852-02-2 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| References | 1. Claudio Valenti, et al. Fasitibant Chloride, a Kinin B₂ Receptor Antagonist, and Dexamethasone Interact to Inhibit Carrageenan-Induced Inflammatory Arthritis in Rats. Br J Pharmacol. 2012 Jun;166(4):1403-10. 2. Erika Terzuoli, et al. Bradykinin B2 Receptor Contributes to Inflammatory Responses in Human Endothelial Cells by the Transactivation of the Fibroblast Growth Factor Receptor FGFR-1. Int J Mol Sci. 2018 Sep 6;19(9):2638. 3. Paola Cucchi, et al. MEN16132, a Novel Potent and Selective Nonpeptide Antagonist for the Human Bradykinin B2 Receptor. In Vitro Pharmacology and Molecular Characterization. Eur J Pharmacol. 2005 Dec 28;528(1-3):7-16. |