A protein composite neural scaffold modulates astrocyte migration and transcriptome profile

Loading...
Thumbnail Image
Authors
Shippy, Teresa D.
Brice, Ryan
Yao, Li
Advisors
Issue Date
2022-01-11
Type
Article
Preprint
Keywords
Astrocyte , Cell motility , Chondroitin sulfate proteoglycans , Glutenin , Neural scaffolds
Research Projects
Organizational Units
Journal Issue
Citation
Yao, L., Brice, R. and Shippy, T. (2022), A Protein Composite Neural Scaffold Modulates Astrocyte Migration and Transcriptome Profile. Macromol. Biosci. 2100406. https://doi.org/10.1002/mabi.202100406
Abstract

Bioscaffold implantation is a promising approach to facilitate the repair and regeneration of wounded neural tissue after injury to the spinal cord or peripheral nerves. However, such bioscaffold grafts currently result in only limited functional recovery. The generation of a neural scaffold using a combination of collagen and glutenin is reported. The conduit material and mechanical properties, as well as its effect on astrocyte behavior is tested. After neural injuries, astrocytes move into the lesion and participate in the process of remodeling the micro-architecture of the wounded neural tissue. In this study, human astrocytes grown on glutenin-collagen scaffolds show higher motility and a lower proliferation rate compared with those grown on collagen scaffolds. RNA sequencing reveals that astrocytes grown on the two types of scaffolds show differentially expressed genes in Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways such as actin cytoskeleton and focal adhesion that regulate astrocyte migration on scaffolds. The gene expression of aggrecan and versican, chondroitin sulfate proteoglycans that inhibit axonal growth, is down-regulated in astrocytes grown on glutenin-collagen scaffolds. These outcomes indicate that the implantation of glutenin-collagen scaffolds may promote astrocyte function in the neural regeneration process by enhanced cell migration and reduced glial scar formation.

Table of Contents
Description
Preprint from publisher. Also available from publisher's website at DOI.
Publisher
John Wiley & Sons, Ltd
Journal
Book Title
Series
Macromolecular Bioscience;2022
PubMed ID
DOI
ISSN
1616-5187
1616-5195
EISSN