Influence of biphasic stimulation on olfactory ensheathing cells for neuroprosthetic devices
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Published version
Author(s)
Hassarati, RT
Foster, LJR
Green, RA
Type
Journal Article
Abstract
� 2016 Hassarati, Foster and Green. The recent success of olfactory ensheathing cell (OEC) assisted regeneration of injured spinal cord has seen a rising interest in the use of these cells in tissue-engineered systems. Previously shown to support neural cell growth through glial scar tissue, OECs have the potential to assist neural network formation in living electrode systems to produce superior neuroprosthetic electrode surfaces. The following study sought to understand the influence of biphasic electrical stimulation (ES), inherent to bionic devices, on cell survival and function, with respect to conventional metallic and developmental conductive hydrogel (CH) coated electrodes. The CH utilized in this study was a biosynthetic hydrogel consisting of methacrylated poly(vinyl-alcohol) (PVA), heparin and gelatin through which poly(3,4-ethylenedioxythiophene) (PEDOT) was electropolymerised. OECs cultured on Pt and CH surfaces were subjected to biphasic ES. Image-based cytometry yielded little significant difference between the viability and cell cycle of OECs cultured on the stimulated and passive samples. The significantly lower voltages measured across the CH electrodes (147 � 3 mV) compared to the Pt (317 � 5 mV), had shown to influence a higher percentage of viable cells on CH (91-93%) compared to Pt (78-81%). To determine the functionality of these cells following electrical stimulation, OECs co-cultured with PC12 cells were found to support neural cell differentiation (an indirect measure of neurotrophic factor production) following ES.
Date Issued
2016-10-04
Date Acceptance
2016-09-06
Citation
Frontiers in Neuroscience, 2016, 10 (OCT)
ISSN
1662-453X
Publisher
Frontiers Media
Journal / Book Title
Frontiers in Neuroscience
Volume
10
Issue
OCT
Copyright Statement
© 2016 Hassarati, Foster and Green. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Subjects
1109 Neurosciences
1702 Cognitive Science
Publication Status
Published
Article Number
432