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Laloze J, Lacoste M, Marouf F, Carpentier G, Vignaud L, Chaput B, Varin A, Desmoulière A, Rovini A. Specific Features of Stromal Cells Isolated from the Two Layers of Subcutaneous Adipose Tissue: Roles of Their Secretion on Angiogenesis and Neurogenesis. J Clin Med 2023; 12:4214. [PMID: 37445249 DOI: 10.3390/jcm12134214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Human-adipose-tissue-derived mesenchymal stromal cells (AD-MSCs) are currently being tested as autologous-cell-based therapies for use in tissue healing and regeneration. Recent studies have also demonstrated that AD-MSC-derived exosomes contribute to tissue repair and peripheral nerve regeneration. Subcutaneous abdominal adipose tissue (AAT) is divided into two layers: the superficial layer (sAAT) and the deep layer (dAAT). However, it is unclear whether there are particular characteristics of each layer in terms of AD-MSC regenerative potential. Using AD-MSCs purified and characterized from three abdominoplasties, we compared their secretomes and exosome functions to identify which layer may be most suitable as a source for cell therapy. Phenotypical analysis of the AD-MSCs containing stromal vascular fraction did not reveal any difference between the two layers. The AD-MSC secretomes showed a very similar pattern of cytokine content and both layers were able to release exosomes with identical characteristics. However, compared to the secretome, the released exosomes showed better biological properties. Interestingly, dAAT exosomes appeared to be more effective on neuromodulation, whereas neither sAAT nor dAAT-derived exosomes had significant effects on endothelial function. It thus appears that AD-MSC-derived exosomes from the two abdominal adipose tissue layers possess different features for cell therapy.
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Affiliation(s)
- Jérôme Laloze
- NeurIT Neuropathies Périphériques et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87000 Limoges, France
- Department of Maxillo-Facial, Plastic and Reconstructive Surgery, CHU Dupuytren, 87000 Limoges, France
| | - Marie Lacoste
- NeurIT Neuropathies Périphériques et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87000 Limoges, France
| | - Faris Marouf
- INSERM UMR 1302, Immunology and New Concepts in ImmunoTherapy, INCIT, Nantes University, 44035 Nantes, France
| | - Gilles Carpentier
- Gly-CRRET Research Unit 4397, Paris-Est Créteil University, 94000 Créteil, France
| | - Laetitia Vignaud
- NeurIT Neuropathies Périphériques et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87000 Limoges, France
| | - Benoit Chaput
- RESTORE Research Center, Team 2 FLAMES, Toulouse P. Sabatier University, INSERM, CNRS, EFS, ENVT, 31062 Toulouse, France
- Department of Plastic and Reconstructive Surgery, Toulouse University Hospital, 31100 Toulouse, France
| | - Audrey Varin
- RESTORE Research Center, Team 2 FLAMES, Toulouse P. Sabatier University, INSERM, CNRS, EFS, ENVT, 31062 Toulouse, France
| | - Alexis Desmoulière
- NeurIT Neuropathies Périphériques et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87000 Limoges, France
| | - Amandine Rovini
- NeurIT Neuropathies Périphériques et Innovations Thérapeutiques UR 20218, Faculties of Medicine and Pharmacy, University of Limoges, 87000 Limoges, France
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