Development of two-photon polymerised scaffolds for optical interrogation and neurite guidance of human iPSC-derived cortical neuronal networks

Abstract

Recent progress in the field of human induced pluripotent stem cells (iPSCs) has led to the efficient production of human neuronal cell models for in vitro study. This has the potential to enable the understanding of live human cellular and network function which is otherwise not possible. However, a major challenge is the generation of reproducible neural networks together with the ability to interrogate and record at the single cell level. A promising aid is the use of biomaterial scaffolds that would enable the development and guidance of neuronal networks in physiologically relevant architectures and dimensionality. The optimal scaffold material would need to be precisely fabricated with submicron resolution, be optically transparent, and biocompatible. Two-photon polymerisation (2PP) enables precise microfabrication of three-dimensional structures. In this study, we report the identification of two biomaterials that support the growth and differentiation of human iPSC-derived neural progenitors into functional neuronal networks. Furthermore, these materials can be patterned to induce alignment of neuronal processes and enable the optical interrogation of individual cells. 2PP scaffolds with tailored topographies therefore provide an effective method of producing defined in vitro human neural networks for application in influencing neurite guidance and complex network activity.

Publication DOI: https://doi.org/10.1039/c9lc01209e
Divisions: College of Health & Life Sciences > Aston Pharmacy School
College of Health & Life Sciences > School of Biosciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
College of Health & Life Sciences > Chronic and Communicable Conditions
College of Health & Life Sciences
College of Health & Life Sciences > Clinical and Systems Neuroscience
Additional Information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Funding: This project has received funding from the European Union's Horizon 2020 research and innovation programme under the grant agreement MESOBRAIN No 713140. EUR and BNC acknowledge further financial support from the European Union's Horizon 2020 programme under the grant agreement SCAFFOLD-NEEDS No. 851734.
Uncontrolled Keywords: Bioengineering,Biochemistry,Chemistry(all),Biomedical Engineering
Publication ISSN: 1473-0189
Last Modified: 23 Apr 2024 07:15
Date Deposited: 04 May 2020 08:07
Full Text Link:
Related URLs: https://pubs.rs ... 9E#!divAbstract (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-05-19
Published Online Date: 2020-04-21
Accepted Date: 2020-04-12
Authors: Crowe, J A
El-Tamer, A
Nagel, D (ORCID Profile 0000-0002-9055-1775)
Koroleva, A V
Madrid-Wolff, J
Olarte, O E
Sokolovsky, S (ORCID Profile 0000-0001-7445-7204)
Estevez-Priego, E
Ludl, A-A
Soriano, J
Loza-Alvarez, P
Chichkov, B N
Hill, E J (ORCID Profile 0000-0002-9419-1500)
Parri, H R (ORCID Profile 0000-0002-1412-2688)
Rafailov, E U (ORCID Profile 0000-0002-4152-0120)

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