Roles for the kallikrein-kinin system in inflammatory exudation and pain: lessons from studies on kininogen-deficient rats.
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| Abstract |
Roles for the kallikrein-kinin system in inflammation have been investigated extensively, and many reviews on this topic have been published during the 50 years since the discovery of bradykinin in 1949. Recent progress in the field has been remarkable with the help of experiments using gene-targetted transgenic or knockout mice, which have added further valuable information in addition to previous results obtained from pharmacological and biochemical studies using purified and isolated components of the system. Furthermore, much knowledge has been accumulated as a result of the development of various bradykinin agonists and antagonists. In this review, we focused on the data obtained from the kininogen-deficient rat, which is a natural mutant, and discuss the results in comparison with those from bradykinin receptor knockout mice. These data have clarified that endogenous bradykinin exerts a most important role in inflammatory exudation along with prostanoids, preferentially to histamine, serotonin, or neuropeptides. In inflammatory pain perception also, bradykinin produced in the local perivascular spaces stimulates polymodal pain receptors in conjunction with co-helpers such as prostanoids, vanilloids, and neuropeptides. These important roles are concluded based on consistent results obtained from experiments using several antagonists of bradykinin, kininogen-deficient rats, and bradykinin receptor knockout mice.
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| Authors | Akinori Ueno, Sachiko Oh-ishi |
| Journal | Journal of pharmacological sciences (J Pharmacol Sci) Vol. 93 Issue 1 Pg. 1-20 (Sep 2003) ISSN: 1347-8613 [Print] Japan |
| PMID | 14501145 (Publication Type: Journal Article, Review) |
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