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Hypothermically stored adipose-derived mesenchymal stromal cell alginate bandages facilitate use of paracrine molecules for corneal wound healing

Lookup NU author(s): Olla Al-Jaibaji, Dr Steve Swioklo, Professor Francisco FigueiredoORCiD, Professor Che ConnonORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Adipose-derived mesenchymal stromal cells (Ad-MSCs) may alleviate corneal injury through the secretion of therapeutic factors delivered at the injury site. We aimed to investigate the therapeutic factors secreted from hypothermically stored, alginate-encapsulated Ad-MSCs’ bandages in in vitro and in vivo corneal wounds. Ad-MSCs were encapsulated in 1.2% w/v alginate gels to form bandages and stored at 15◦ C for 72 h before assessing cell viability and co-culture with corneal scratch wounds. Genes of interest, including HGF, TSG-6, and IGF were identified by qPCR and a human cytokine array kit used to profile the therapeutic factors secreted. In vivo, bandages were applied to adult male mice corneas following epithelial debridement. Bandages were shown to maintain Ad-MSCs viability during storage and able to indirectly improve corneal wound healing in vivo. Soluble protein concentration and paracrine factors such as TSG-6, HGF, IL-8, and MCP-1 release were greatest following hypothermic storage. In vivo, Ad-MSCs bandages-treated groups reduced immune cell infiltration when compared to untreated groups. In conclusion, bandages were shown to maintain Ad-MSCs ability to produce a cocktail of key therapeutic factors following storage and that these soluble factors can improve in vitro and in vivo corneal wound healing.

Publication metadata

Author(s): Al-Jaibaji O, Swioklo S, Shortt A, Figueiredo FC, Connon CJ

Publication type: Article

Publication status: Published

Journal: International Journal of Molecular Sciences

Year: 2020

Volume: 21

Issue: 16

Online publication date: 14/08/2020

Acceptance date: 05/08/2020

Date deposited: 16/10/2020

ISSN (print): 1661-6596

ISSN (electronic): 1422-0067

Publisher: MDPI AG

URL: https://doi.org/10.3390/ijms21165849

DOI: 10.3390/ijms21165849

PubMed id: 32823996

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