Actions of cysteinyl leukotrienes in the enteric nervous system of guinea-pig stomach and small intestine.
Actions of cysteinyl leukotrienes in the enteric nervous system of guinea-pig stomach and small intestine.
复制标题
半胱氨酰白三烯在豚鼠胃和小肠肠神经系统中的作用。
DOI:
10.1016/s0014-2999(02)02820-0
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发表时间:
2003
影响因子:
5
通讯作者:
Wood,JackieD
中科院分区:
文献类型:
--
作者:
Liu,Sumei;Hu,HongZhen;Gao,Chuanyun;Gao,Na;Wang,Guodu;Wang,Xiyu;Gao,Xiang;Xia,Yun;Wood,JackieD
Conventional intracellular microelectrodes, neuronal tracer injection techniques and immunohistochemistry were used to study the actions of cysteinyl leukotrienes (CysLTs) on electrical and synaptic behavior of enteric neurons in guinea-pig stomach and small intestine. Bath application of leukotriene C4, leukotriene D4or leukotriene E4evoked a slowly activating depolarizing response in most of the myenteric and submucous plexus neurons in the small intestine while no effect was observed in gastric neurons. The depolarization evoked by cysteinyl leukotrienes in intestinal neurons was associated with increased input resistance and enhanced excitability. Suppression of hyperpolarizing after-potentials occurred in AH type neurons. The depolarizing action of cysteinyl leukotrienes was resistant to tetrodotoxin and cyclooxygenase inhibitors. Neither the CysLT1receptor antagonists (E)-3-[[[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl][[3-dimethylamino)-3-oxopropyl]thio]methyl]thio]-propanoic acid (MK 571), 1-[2-hydroxy-3-propyl-4-[4-(1H-tetrazol-5-yl)butoxy]phenyl}-ethanone (LY 171883) and α-pentyl-3-(2-quinolinylmethoxy)-benzenemethanol (REV 5901), nor the dual CysLT1/CysLT2receptor antagonist 6(R)-(4′-carboxyphenylthio)-5(S)-hydroxy-7(E),9(E),11(Z),14(Z)-eicosatetraenoic acid (BAY u9773) significantly altered the depolarizing action of the cysteinyl leukotrienes. Neurotransmission was unaffected by the cysteinyl leukotrienes. The results suggested involvement of cysteinyl leukotrienes in enteric immuno-neural communication through excitatory actions on enteric neurons. The receptor mediating these effects was distinct from currently recognized cysteinyl leukotriene receptor subtypes (CysLT1and CysLT2receptors) and may represent a new receptor subtype.
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DOI:
10.1152/ajpgi.1988.255.2.g175
发表时间:
1988
期刊:
The American journal of physiology
影响因子:
--
作者:
Smith,PL;Montzka,DP;McCafferty,GP;Wasserman,MA;Fondacaro,JD
通讯作者:
Fondacaro,JD
影响因子:
3.3
作者:
E. Thomas;P. Bertrand;J. Bornstein
通讯作者:
J. Bornstein
影响因子:
3.5
作者:
T. Traynor;David R. Brown;S. O’Grady
通讯作者:
S. O’Grady
影响因子:
3.5
作者:
D. Oliva;M. Accomazzo;S. Giovanazzi;S. Nicosia
通讯作者:
S. Nicosia
影响因子:
--
作者:
W. H. Percy;S. Y. Lee;M. Burton;T. Tolentino;R. Burakoff
通讯作者:
R. Burakoff