Spatiotemporal resolution of Ca2+ signaling events by real time imaging of single B cells
Spatiotemporal resolution of Ca2+ signaling events by real time imaging of single B cells
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通过单个 B 细胞的实时成像对 Ca2 信号传导事件进行时空分辨率
DOI:
10.1016/j.febslet.2012.03.057
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发表时间:
2012
期刊:
影响因子:
3.5
通讯作者:
Wienands J
中科院分区:
文献类型:
--
作者:
Junek S;Engelke M;Schild D;Wienands J
Antigen-induced B cell activation requires mobilization of the Ca2+second messenger. This process is associated with the subcellular relocalization of signal effector proteins of the B cell antigen receptor such as the adaptor protein SLP65. Here we describe a broadly applicable live cell imaging method to simultaneously visualize intracellular Ca2+flux profiles and the translocation of cytosolic signaling proteins to the plasma membrane in real time. Our approach delineated the kinetic hierarchy of Ca2+signaling events in B cells and revealed a timely ordered contribution of various organelles to the overall Ca2+signal. The developed experimental setup provides a useful tool to resolve the spatiotemporal signaling dynamics in various receptor signaling systems.
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