Kumar, P. orcid.org/0000-0002-9965-8691, Jimenez Franco, A. orcid.org/0000-0003-1292-7850 and Zhao, X. orcid.org/0000-0002-4620-2893 (2023) 3D culture of fibroblasts and neuronal cells on microfabricated free-floating carriers. Colloids and Surfaces B: Biointerfaces, 227. 113350. ISSN 0927-7765
Abstract
3D cell culture is a relatively recent trend in biomedical research for artificially mimicking in vivo environment and providing three dimensions for the cells to grow in vitro, particularly with regard to surface-adherent mammalian cells. Different cells and research objectives require different culture conditions which has led to an increase in the diversity of 3D cell culture models. In this study, we show two independent on-carrier 3D cell culture models aimed at two different potential applications. Firstly, micron-scale porous spherical structures fabricated from poly (lactic-co-glycolic acid) or PLGA are used as 3D cell carriers so that the cells do not lose their physiologically relevant spherical shape. Secondly, millimetre-scale silk fibroin structures fabricated by 3D inkjet bioprinting are used as 3D cell carriers to demonstrate cell growth patterning in 3D for use in applications which require directed cell growth. The L929 fibroblasts demonstrated excellent adherence, cell-division and proliferation on the PLGA carriers, while the PC12 neuronal cells showed excellent adherence, proliferation and spread on the fibroin carriers without any evidence of cytotoxicity from the carriers. The present study thus proposes two models for 3D cell culture and demonstrates, firstly, that easily fabricable porous PLGA structures can act as excellent cell carriers for aiding cells easily retain their physiologically relevant 3D spherical shape in vitro, and secondly, that 3D inkjet printed silk fibroin structures can act as geometrically-shaped carriers for 3D cell patterning or directed cell growth in vitro. While the ‘fibroblasts on PLGA carriers’ model will help achieve more accurate results than the conventional 2D culture in cell research, such as drug discovery, and cell proliferation for adoptive cell transfer, such as stem cell therapy, the ‘neuronal cells on silk fibroin carriers’ model will help in research requiring patterned cell growth, such as treatment of neuropathies.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | 3D cell culture; Biofabrication; Bioprinting; CAD; Cell carriers; PLGA; Silk fibroin; Animals; Fibroins; Tissue Scaffolds; Polylactic Acid-Polyglycolic Acid Copolymer; Polyglycolic Acid; Fibroblasts; Tissue Engineering; Mammals |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/N023579/1 Engineering and Physical Sciences Research Council EP/N007174/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Aug 2023 14:23 |
Last Modified: | 09 Aug 2023 14:23 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.colsurfb.2023.113350 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:202269 |