Synergism of platelet-aggregating agents. Role of elevation of cytoplasmic calcium.
Synergism of platelet-aggregating agents. Role of elevation of cytoplasmic calcium.
复制标题
血小板聚集剂的协同作用。
DOI:
10.1172/jci113058
复制
发表时间:
1987
期刊:
影响因子:
--
通讯作者:
Salzman,EW
中科院分区:
文献类型:
--
作者:
Ware,JA;Smith,M;Salzman,EW
When a pair of platelet agonists, each in subthreshold concentration, is added together or in sequence to a platelet suspension, the platelet response is enhanced. Addition of two agonists to platelets loaded with aequorin also enhanced the observed rise in cytoplasmic ionized calcium ([Ca2+]i) in response to the second agonist if the agonists were added within 20 s of each other. Enhancement of aggregation and secretion required that an increase in [Ca2+]i (as indicated by aequorin but not necessarily indo-1) followed the first agonist, but not that the [Ca2+]i remain elevated until addition of the second agonist. Enhancement was not prevented by aspirin, ADP scavengers, or chelators of extracellular Ca2+. We conclude that a rise in [Ca2+]i induced by a first agonist "primes" platelets for an augmented functional response to a second agonist, which is not, however, determined by the [Ca2+]i at the time of addition of the second agonist.Images
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DOI:
10.1016/0161-4630(80)90090-7
发表时间:
1980
期刊:
Prostaglandins and medicine
影响因子:
--
作者:
Gundu H.R. Rao;Gerhard J. Johnson;J. White
通讯作者:
J. White
影响因子:
7.5
作者:
P. Johnson;J. Ware;E. Salzman
通讯作者:
E. Salzman
DOI:
--
发表时间:
1985-03
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Grynkiewicz;M. Poenie;Roger Y. TsienB
通讯作者:
G. Grynkiewicz;M. Poenie;Roger Y. TsienB
影响因子:
20.1
作者:
J. Ware;P. Johnson;Marianne Smith;E. Salzman
通讯作者:
E. Salzman
影响因子:
6.7
作者:
L. Best;T. Holland;P. Jones;R. Russell
通讯作者:
R. Russell