Cysteinyl leukotrienes mediate the response of submucosal ganglia from rat colon to bradykinin.
Cysteinyl leukotrienes mediate the response of submucosal ganglia from rat colon to bradykinin.
复制标题
半胱氨酰白三烯介导大鼠结肠粘膜下神经节对缓激肽的反应
DOI:
10.1016/j.ejphar.2012.02.001
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发表时间:
2012
影响因子:
5
通讯作者:
Diener M
中科院分区:
文献类型:
--
作者:
Rehn M;Diener M
The aim of the present study was to find out the mechanism by which the inflammatory mediator, bradykinin, induces an increase of the cytosolic Ca2+concentration ([Ca2+]i) in enteric neurons. For this purpose, ganglia in the isolated submucosa from rat colon were loaded with the Ca2+-sensitive dye, fura-2, and were exposed to bradykinin (2·10−8mol/l). Under control conditions, the kinin evoked a transient increase in [Ca2+]i. Preincubation with quinacrine or arachidonyltrifluoromethylketone (AACOCF3), i.e. blockers of cytosolic phospholipase A2, prevented the raise of [Ca2+]i. This inhibition was mimicked by 5,8,11,14-eicosatetrayonic acid (ETYA), an inhibitor of cyclooxygenases as well as lipoxygenases, and by BWA4C, a selective inhibitor of lipoxygenases, whereas indomethacin was ineffective, suggesting the mediation of the kinin response by a lipoxygenase metabolite. Indeed, a leukotriene, leukotriene D4(LTD4), mimicked the effect of bradykinin. The LTD4receptor blocker, MK-571, inhibited the increase in [Ca2+]ievoked by LTD4and by bradykinin. Consequently, bradykinin receptors in submucosal ganglia from rat colon are coupled to a stimulation of phospholipase A2, the release of arachidonic acid and the production of LTD4, which seems to be finally responsible for the change in the cytosolic Ca2+concentration.
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DOI:
--
发表时间:
1983
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
Hojvat,SA;Musch,MW;Miller,RJ
通讯作者:
Miller,RJ
影响因子:
5
作者:
Liu,Sumei;Hu,HongZhen;Gao,Chuanyun;Gao,Na;Wang,Guodu;Wang,Xiyu;Gao,Xiang;Xia,Yun;Wood,JackieD
通讯作者:
Wood,JackieD
影响因子:
3.5
作者:
T. Traynor;David R. Brown;S. O’Grady
通讯作者:
S. O’Grady
DOI:
10.1172/jci113192
发表时间:
1987
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Baud,L;Goetzl,EJ;Koo,CH
通讯作者:
Koo,CH
影响因子:
1.7
作者:
Martin Öst;E. Uhl;M. Carlsson;A. Gidlöf;P. Söderkvist;A. Sirsjö
通讯作者:
A. Sirsjö