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Depuydt E, Chiers K, Van Hecke L, Saunders J, Martens A, Pille F, Spaas JH. Assessing the functional properties of tenogenic primed mesenchymal stem cells in ex vivo equine tendon and ligament explants: A preliminary study. Stem Cell Res 2022; 65:102963. [PMID: 36395687 DOI: 10.1016/j.scr.2022.102963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
Injuries to equine tendons and ligaments are career-compromising, causing reduced performance and premature retirement. Promising treatment alternatives have been investigated in the field of mesenchymal stem cells (MSCs). In this study, the tissue adherence and protein expression of tenogenic primed mesenchymal stem cells (tpMSCs) after administration to ex vivo tendon and ligament explants is investigated. First, collagen type I (COL I) and smooth muscle actin (SMA) expression was assessed in cytospins prepared from native MSCs and tpMSCs. Second, equine superficial digital flexor tendon and suspensory ligament explants were cultivated, and a lesion was treated with both cell types. Subsequently, cell adhesion to the explants and the amount of COL I and SMA positive cells was evaluated. The cytospins revealed a significantly higher COL I and lower SMA expression in tpMSCs compared to native MSCs. In the explants, tpMSCs showed a significantly higher tendon and ligament adherence. Furthermore, a significantly higher percentage of COL I positive and a lower percentage of SMA positive cells were observed in the lesions treated with tpMSCs. The results of these explant co-cultures may demonstrate at least a part of the mechanism of action and functional properties of tpMSCs in restoring function to tendons and ligaments.
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Affiliation(s)
- Eva Depuydt
- Boehringer Ingelheim Veterinary Medicine Belgium, Noorwegenstraat 4, 9940 Evergem, Belgium; Ghent University, Faculty of Veterinary Medicine, Department of Surgery and Anaesthesiology of Domestic Animals, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Koen Chiers
- Ghent University, Faculty of Veterinary Medicine, Department of Pathology, Bacteriology and Poultry diseases, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Lore Van Hecke
- Boehringer Ingelheim Veterinary Medicine Belgium, Noorwegenstraat 4, 9940 Evergem, Belgium.
| | - Jimmy Saunders
- Ghent University, Faculty of Veterinary Medicine, Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Ann Martens
- Ghent University, Faculty of Veterinary Medicine, Department of Surgery and Anaesthesiology of Domestic Animals, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Frederik Pille
- Ghent University, Faculty of Veterinary Medicine, Department of Surgery and Anaesthesiology of Domestic Animals, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Jan H Spaas
- Ghent University, Faculty of Veterinary Medicine, Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Salisburylaan 133, 9820 Merelbeke, Belgium; Boehringer Ingelheim Animal Health, 1730 Olympic Drive, 30606 Athens, GA, USA.
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