All-Optical Assay to Study Biological Neural Networks.
All-Optical Assay to Study Biological Neural Networks.
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DOI:
10.3389/fnins.2018.00451
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发表时间:
2018
影响因子:
4.3
通讯作者:
Antkowiak M
中科院分区:
文献类型:
--
作者:
Afshar Saber W;Gasparoli FM;Dirks MG;Gunn-Moore FJ;Antkowiak M
We introduce a novel all-optical assay for functional studies of biological neural networks in vitro. We created a novel optogenetic construct named OptoCaMP which is a combination of a channelrhodopsin variant (CheRiff) and a red genetically encoded calcium indicator (GECI) (jRCaMP1b). It enables simultaneous optical stimulation and recording from large population of neurons with single-cell readout. Additionally, we have developed a spatio-temporal all-optical assay to simultaneously stimulate a sub-section of a neural network and record evoked calcium activity, in both stimulated and non-stimulated neurons, thus allowing the investigation of the spread of excitation through an interconnected network. Finally, we demonstrate the sensitivity of this assay to the change of neural network connectivity.
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