Title : Calcium-calmodulin plays a major role in bradykinin-induced arachidonic acid release by bovine aortic endothelial cells.

Pub. Date : 1996 Dec 1

PMID : 8913880






10 Functional Relationships(s)
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Protein Name
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1 Calcium-calmodulin plays a major role in bradykinin-induced arachidonic acid release by bovine aortic endothelial cells. Arachidonic Acid kininogen 1 Bos taurus
2 We provided evidence that calcium-calmodulin plays a major role in bradykinin-induced arachidonic acid release by bovine aortic endothelial cells. Arachidonic Acid kininogen 1 Bos taurus
3 In cells labeled for 16 hr with 3H-arachidonic acid, ionomycin and Ca2(+)-mobilizing hormones such as bradykinin, thrombin and platelet activating factor induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus
4 Bradykinin induced the release of arachidonic acid in a dose-dependent manner (EC50 = 1.6 +/- 0.7 nM). Arachidonic Acid kininogen 1 Bos taurus
5 In a Ca2(+)-free medium, bradykinin was still able to release arachidonic acid but with a lower efficiency. Arachidonic Acid kininogen 1 Bos taurus
6 Quinacrine (300 microM), a blocker of PLA2, completely inhibited bradykinin-induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus
7 The B2 bradykinin receptor antagonist HOE-140 completely inhibited bradykinin-induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus
8 The phospholipase C inhibitor U-73122 (100 microM) decreased bradykinin-induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus
9 The calmodulin inhibitor W-7 (50 microM) drastically reduced the bradykinin- and ionomycin-induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus
10 Also, forskolin decreased bradykinin-induced arachidonic acid release. Arachidonic Acid kininogen 1 Bos taurus