ML-7 and W-7 facilitate thromboxane A2-mediated Ca2+ mobilization in rabbit platelets.
ML-7 and W-7 facilitate thromboxane A2-mediated Ca2+ mobilization in rabbit platelets.
复制标题
ML-7 和 W-7 促进兔血小板中血栓素 A2 介导的 Ca2 动员。
DOI:
10.1016/0014-2999(95)00788-1
复制
发表时间:
1996
影响因子:
5
通讯作者:
Y. Ohizumi
中科院分区:
文献类型:
--
作者:
S. Ohkubo;N. Nakahata;Y. Ohizumi
The effects of 1-(5-iodonaphthalene-1-sulfonyl)-1 H-hexahydro-1, 4-diazepine (ML-7), a myosin light chain kinase inhibitor, and (N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide (W-7), a calmodulin antagonist, on thromboxane A2receptor-mediated signal transduction were examined in rabbit washed platelets. ML-7 and W-7 at 10–30 μM slightly potentiated the aggregation induced by a thromboxane A2receptor agonist, 9, 11-dideoxy-9α, 11 α-epoxymethanoprostaglandin F2α (U46619), in spite of their known inhibitory actions. ML-7 and W-7 concentration-dependently enhanced U46619-induced phosphoinositide hydrolysis and the increase in internal free Ca2+concentration in the presence or absence of external Ca2+. While ML-7 and W-7 inhibited basal GTPase activity, they augmented U46619-induced activation of GTPase in a concentration-dependent manner. The present results suggest that ML-7 and W-7 enhance thromboxane A2receptor-mediated signal transduction at the receptor/G protein coupling, leading to the enhancement of phosphoinositide hydrolysis and Ca2+mobilization, independently of the inhibition of myosin light chain kinase or calmodulin.
DOI:
10.1016/s0309-1651(06)80168-2
发表时间:
1992
期刊:
Cell biology international reports
影响因子:
--
作者:
Lokeshwar,VB;Bourguignon,LY
通讯作者:
Bourguignon,LY
DOI:
10.1016/s0021-9258(17)42774-8
发表时间:
1984-08
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
J. Daniel;I. Molish;M. Rigmaiden;G. Stewart
通讯作者:
J. Daniel;I. Molish;M. Rigmaiden;G. Stewart
DOI:
10.1016/0006-291x(87)90942-9
发表时间:
1987
影响因子:
3.1
作者:
Rao,GH
通讯作者:
Rao,GH