Calcium signalling in adult endothelial outgrowth cells.
Calcium signalling in adult endothelial outgrowth cells.
复制标题
成体内皮生长细胞中的钙信号传导。
DOI:
10.1016/j.bbrc.2011.11.115
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发表时间:
2012
影响因子:
3.1
通讯作者:
J. Mackrill
中科院分区:
文献类型:
--
作者:
W. G. Pierce;Christopher Zanette;N. Caplice;J. Mackrill
Endothelial outgrowth cells (EOCs) derived from blood mononuclear cells can differentiate to an endothelial-like phenotype. There are deficits in understanding of the biology of these cells, particularly detailed characterisation of their Ca2+signalling mechanisms. In the current study, it was found that human EOCs express two forms of ryanodine receptor (RyR1 and RyR2) Ca2+release channel in their endoplasmic reticulum. Individual EOCs display heterogeneous Ca2+responses to physiologically relevant regulators fibrinogen and collagen. Some EOCs showed distinctive, multiphasic Ca2+responses to fibrinogen consisting of rapid decreases, transient increases then a gradual return to the resting levels. Transient elevations in Ca2+required both L-type voltage gated calcium channels and RyRs. Decreases in Ca2+stimulated by fibrinogen depended on plasma membrane Ca2+ATPase pumps, but did not require thapsigargin-sensitive Ca2+ATPases. These results indicate that EOCs possess sophisticated Ca2+signalling mechanisms, capable of generating distinct Ca2+waveforms in response to different physiologically relevant cues.
DOI:
--
发表时间:
1988
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Ambler,SK;Poenie,M;Tsien,RY;Taylor,P
通讯作者:
Taylor,P
影响因子:
15.9
作者:
Lin, Y;Weisdorf, D;Hebbel, RP
通讯作者:
Hebbel, RP
影响因子:
4.8
作者:
M. A. Schwartz;K. Denninghoff
通讯作者:
M. A. Schwartz;K. Denninghoff