Serotonin-mediated modulation of acetylcholine-induced intracellular calcium responses in chromaffin cells isolated from the rat adrenal medulla
Serotonin-mediated modulation of acetylcholine-induced intracellular calcium responses in chromaffin cells isolated from the rat adrenal medulla
复制标题
血清素介导的大鼠肾上腺髓质嗜铬细胞乙酰胆碱诱导的细胞内钙反应的调节
DOI:
10.1016/j.neulet.2017.02.048
复制
发表时间:
2017
影响因子:
2.5
通讯作者:
Tomoyuki Saino
中科院分区:
文献类型:
--
作者:
Takuya Yokoyama;Yoshio Yamamoto;Tomoyuki Saino
We examined serotonin (5-HT)-mediated modulation of acetylcholine (ACh)-induced intracellular Ca2+([Ca2+]i) responses in rat adrenal chromaffin cells using calcium imaging. 5-HT did not induce any [Ca2+]iresponse in clustered chromaffin cells. However, the magnitude of ACh-induced [Ca2+]iincreases in the same specimens was inhibited in the presence of 5-HT. ACh-induced [Ca2+]iincreases in chromaffin cells were also inhibited by the 5-HT1A receptor agonist, 8-hydroxy-2-(dipropylamino) tetralin hydrobromide, but were not changed by the 5-HT1B, 5-HT2, or 5-HT3 receptor agonists, CP93129, α-methyl-5-HT, or 1-(m-chlorophenyl) biguanide, respectively. RT-PCR analysis detected the expression of all 5-HT receptor subtype mRNAs, except for 5-HT5 receptors, in extracts of the adrenal medulla. Immunohistochemistry revealed that immunoreactivity for 5-HT1A receptor was located in the chromaffin cells immunoreactive for the biosynthetic enzyme for noradrenaline, dopamine β-hydroxylase. These results suggest that 5-HT inhibits ACh-induced excitability in adrenal chromaffin cells via the 5-HT1A receptor in order to reduce catecholamine release during preganglionic sympathetic stimuli.
登录
查看更多内容
DOI:
10.1016/0024-3205(88)90255-x
发表时间:
1988
期刊:
Life Science
影响因子:
--
作者:
G. Blauw;P. van Brummelen;P. V. van Zwieten
通讯作者:
P. V. van Zwieten
DOI:
10.1046/j.1365-201x.1999.00580.x
发表时间:
1999
期刊:
Acta physiologica Scandinavica
影响因子:
--
作者:
D. Aunis;K. Langley
通讯作者:
K. Langley
影响因子:
2.5
作者:
Bayliss, DA;Li, YW;Talley, EM
通讯作者:
Talley, EM
影响因子:
13.8
作者:
B. Livett
通讯作者:
B. Livett
影响因子:
3.6
作者:
Taylor,EW;Nikam,SS;Lambert,G;Martin,AR;Nelson,DL
通讯作者:
Nelson,DL