These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Partial agonists and full antagonists at the human and murine bradykinin B1 receptors.
    Author: MacNeil T, Feighner S, Hreniuk DL, Hess JF, Van der Ploeg LH.
    Journal: Can J Physiol Pharmacol; 1997 Jun; 75(6):735-40. PubMed ID: 9276157.
    Abstract:
    We developed a functional assay to evaluate the activity of kinin peptides at the human and mouse bradykinin (BK) B1 receptors. The photoprotein aequorin expressed in 293-AEQ17 cells was used to measure calcium mobilization due to activation of the human or mouse B1 receptors by kinin peptides. The B1 agonists des-Arg9-BK and des-Arg10-kallidin activated the human receptor (EC50 = 112 and 5 nM, respectively), whereas the B1 peptide antagonists des-Arg9,Leu8-BK and des-Arg10,Leu9-kallidin showed no activation. At the murine receptor, the agonists des-Arg9-BK and des-Arg10-kallidin activated the receptor with EC50 values of 39 and 23 nM, respectively. In contrast, the two peptide antagonists showed significant agonism at the murine receptor. Thirty-nine and 44% agonism of the mouse receptor was observed with des-Arg9,Leu8-BK (EC50 = 56 nM) and des-Arg10,Leu9-kallidin (EC50 = 177 nM). Two recently described kinin analogues, [Lys-Lys0,Hyp3,Igl5,D-Igl7,Oic8,des-Arg9]B K and [D-Arg0,Hyp3,Igl5,D-Igl7, Oic8,des-Arg9]BK (B9858 and des-Arg9-B9430), failed to agonize the mouse receptor. These peptides were potent antagonists of des-Arg10-kallidin- and des-Arg9-BK-induced bioluminescence at the cloned human and mouse B1 receptors.
    [Abstract] [Full Text] [Related] [New Search]