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Knight R, Board-Davies E, Brown H, Clayton A, Davis T, Karatas B, Burston J, Tabi Z, Falcon-Perez JM, Paisey S, Stephens P. Oral Progenitor Cell Line-Derived Small Extracellular Vesicles as a Treatment for Preferential Wound Healing Outcome. Stem Cells Transl Med 2022; 11:861-875. [PMID: 35716044 PMCID: PMC9397654 DOI: 10.1093/stcltm/szac037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/28/2022] [Indexed: 12/11/2022] Open
Abstract
Scar formation during wound repair can be devastating for affected individuals. Our group previously documented the therapeutic potential of novel progenitor cell populations from the non-scarring buccal mucosa. These Oral Mucosa Lamina Propria-Progenitor Cells (OMLP-PCs) are multipotent, immunosuppressive, and antibacterial. Small extracellular vesicles (sEVs) may play important roles in stem cell-mediated repair in varied settings; hence, we investigated sEVs from this source for wound repair. We created an hTERT immortalized OMLP-PC line (OMLP-PCL) and confirmed retention of morphology, lineage plasticity, surface markers, and functional properties. sEVs isolated from OMLP-PCL were analyzed by nanoparticle tracking analysis, Cryo-EM and flow cytometry. Compared to bone marrow-derived mesenchymal stromal cells (BM-MSC) sEVs, OMLP-PCL sEVs were more potent at driving wound healing functions, including cell proliferation and wound repopulation and downregulated myofibroblast formation. A reduced scarring potential was further demonstrated in a preclinical in vivo model. Manipulation of OMLP-PCL sEVs may provide novel options for non-scarring wound healing in clinical settings.
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Affiliation(s)
- Rob Knight
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Emma Board-Davies
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK
| | - Helen Brown
- Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, Wales, UK,Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK
| | - Aled Clayton
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Terence Davis
- PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Ben Karatas
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - James Burston
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff, Wales, UK,Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Zsuzsanna Tabi
- PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Juan M Falcon-Perez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain,Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain,IKERBASQUE, Basque Foundation for Science, Bilbao, Bizkaia, Spain
| | - Stephen Paisey
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, Wales, UK,PETIC, School of Medicine, Cardiff University, Cardiff, Wales, UK
| | - Phil Stephens
- Corresponding author: Phil Stephens, Regenerative Biology Group, Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, CF14 4XY, Wales, UK.
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