Bradykinin antagonists: discovery and development |
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Authors: | Stewart John M |
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Institution: | Department of Biochemistry, University of Colorado Medical School, Denver, CO 80262, USA. john.stewart@uchsc.edu |
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Abstract: | Practical bradykinin antagonists were discovered in 1984 by Vavrek and Stewart and reported in "Peptides." At that time there was already much evidence for involvement of bradykinin in inflammation and pain, so the specific, competitive antagonists were widely accepted and applied. The key to conversion of bradykinin into an antagonist was replacement of the proline residue at position 7 with a D-aromatic amino acid. Other modifications converted the initial weak antagonists into modern peptides which are totally resistant to all degrading enzymes, are orally available, and have been used in clinical trials. Non-peptide bradykinin antagonists have also been developed. |
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