Large-scale imaging of subcellular calcium dynamics of cortical neurons with G-CaMP6-actin
Large-scale imaging of subcellular calcium dynamics of cortical neurons with G-CaMP6-actin
复制标题
使用 G-CaMP6-肌动蛋白对皮质神经元的亚细胞钙动态进行大规模成像
DOI:
10.1097/wnr.0000000000000126
复制
发表时间:
2014
期刊:
影响因子:
1.7
通讯作者:
他
中科院分区:
文献类型:
--
作者:
小林千晃;他
Understanding the information processing performed by a single neuron requires the monitoring of physiological dynamics from a variety of subcellular compartments including dendrites and axons. In this study, we showed that the expression of a fusion protein, consisting of a Ca 2+ indicator protein (G-CaMP6) and a cytoskeleton protein (actin), enabled large-scale recording of Ca 2+ dynamics from hundreds of postsynaptic spines and presynaptic boutons in a cortical pyramidal cell. At dendritic spines, G-CaMP6-actin had the potential to detect localized Ca 2+ activity triggered by subthreshold synaptic inputs. Back-propagating action potentials reliably induced Ca 2+ fluorescent increases in all spines. At axonal boutons, G-CaMP6-actin reported action potential trains propagating along axonal collaterals. The detectability of G-CaMP6-actin should contribute toward a deeper understanding of neural network architecture and dynamics at the level of individual synapses.
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Microscopy Naoya Takahashi;Shigeyuki Oba;Naoto Yukinawa;Sakiko Ujita;N. Matsuki;Shin Ishii;Y. Ikegaya
通讯作者:
Y. Ikegaya
影响因子:
64.8
作者:
Chen, Xiaowei;Leischner, Ulrich;Konnerth, Arthur
通讯作者:
Konnerth, Arthur