Recruitment of the intracellular Ca2+ by ultrashort electric stimuli: the impact of pulse duration.
Recruitment of the intracellular Ca2+ by ultrashort electric stimuli: the impact of pulse duration.
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DOI:
10.1016/j.ceca.2013.05.008
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发表时间:
2013-09
期刊:
影响因子:
4
通讯作者:
Pakhomov AG
中科院分区:
文献类型:
--
作者:
Semenov I;Xiao S;Pakhomova ON;Pakhomov AG
Nanosecond-duration electric stimuli are distinguished by the ability to permeabilize intracellular membranes and recruit Ca2+ from intracellular stores. We quantified this effect in non-excitable cells (CHO) using ratiometric Ca2+ imaging with Fura-2. In a Ca2+-free medium, 10-, 60-, and 300-ns stimuli evoked Ca2+ transients by mobilization of Ca2+ from the endoplasmic reticulum. With 2 mM external Ca2+, the transients included both extra- and intracellular components. The recruitment of intracellular Ca2+ increased as the stimulus duration decreased. At the threshold of 200–300 nM, the transients were amplified by calcium-induced calcium release. We conclude that nanosecond stimuli mimic Ca2+ signaling while bypassing the usual receptor- and channels-mediated cascades. The recruitment of the intracellular Ca2+ can be controlled by the duration of the stimulus.
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影响因子:
3.7
作者:
Pakhomova ON;Gregory BW;Khorokhorina VA;Bowman AM;Xiao S;Pakhomov AG
通讯作者:
Pakhomov AG
DOI:
10.1073/pnas.1115855109
发表时间:
2012-02-07
影响因子:
11.1
作者:
Thul, Ruediger;Coombes, Stephen;Bootman, Martin D.
通讯作者:
Bootman, Martin D.
影响因子:
1.9
作者:
Schoenbach, KH;Beebe, SJ;Buescher, ES
通讯作者:
Buescher, ES
影响因子:
--
作者:
Vernier, P. Thomas;Sun, Yinghua;Gundersen, Martin A.
通讯作者:
Gundersen, Martin A.
影响因子:
3.4
作者:
Michailova, A;DelPrincipe, F;Niggli, E
通讯作者:
Niggli, E