Electrical Stimulation with a Conductive Polymer Promotes Neurite Outgrowth and Synaptogenesis in Primary Cortical Neurons

Zhang, Q, Beirne, S, Shu, K, Esrafilzadeh, D, Huang, X and Wallace, G 2018, 'Electrical Stimulation with a Conductive Polymer Promotes Neurite Outgrowth and Synaptogenesis in Primary Cortical Neurons', Scientific Reports, vol. 8, no. 1, pp. 9855-9865.


Document type: Journal Article
Collection: Journal Articles

Title Electrical Stimulation with a Conductive Polymer Promotes Neurite Outgrowth and Synaptogenesis in Primary Cortical Neurons
Author(s) Zhang, Q
Beirne, S
Shu, K
Esrafilzadeh, D
Huang, X
Wallace, G
Year 2018
Journal name Scientific Reports
Volume number 8
Issue number 1
Start page 9855
End page 9865
Total pages 11
Publisher Nature Publishing Group
Abstract Deficits in neurite outgrowth and synaptogenesis have been recognized as an underlying developmental aetiology of psychosis. Electrical stimulation promotes neuronal induction including neurite outgrowth and branching. However, the effect of electrical stimulation using 3D electrodes on neurite outgrowth and synaptogenesis has not been explored. This study examined the effect of 3D electrical stimulation on 3D primary cortical neuronal cultures. 3D electrical stimulation improved neurite outgrowth in 3D neuronal cultures from both wild-Type and NRG1-knockout (NRG1-KO) mice. The expression of synaptophysin and PSD95 were elevated under 3D electrical stimulation. Interestingly, 3D electrical stimulation also improved neural cell aggregation as well as the expression of PSA-NCAM. Our findings suggest that the 3D electrical stimulation system can rescue neurite outgrowth deficits in a 3D culturing environment, one that more closely resembles the in vivo biological system compared to more traditionally used 2D cell culture, including the observation of cell aggregates as well as the upregulated PSA-NCAM protein and transcript expression. This study provides a new concept for a possible diagnostic platform for neurite deficits in neurodevelopmental diseases, as well as a viable platform to test treatment options (such as drug delivery) in combination with electrical stimulation.
Subject Synthetic Biology
Biomaterials
Medical Devices
DOI - identifier 10.1038/s41598-018-27784-5
Copyright notice © The Author(s) 2018. Creative Commons Attribution 4.0 International License
ISSN 2045-2322
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