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Pizzinat N, Ong-Meang V, Bourgailh-Tortosa F, Blanzat M, Perquis L, Cussac D, Parini A, Poinsot V. Extracellular vesicles of MSCs and cardiomyoblasts are vehicles for lipid mediators. Biochimie 2020; 178:69-80. [PMID: 32835733 DOI: 10.1016/j.biochi.2020.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/20/2020] [Accepted: 07/24/2020] [Indexed: 01/08/2023]
Abstract
Recent works reported the relevance of cellular exosomes in the evolution of different pathologies. However, most of these studies focused on the ability of exosomes to convey mi-RNA from cell to cell. The level of knowledge concerning the transport of lipid mediators by these nanovesicles is more than fragmented. The role of lipid mediators in the inflammatory signaling is fairly well described, in particular concerning the derivatives of the arachidonic acid (AA), called eicosanoïds or lipid mediators. The aim of the present work was to study the transport of these lipids within the extracellular vesicles of rat bone marrow mesenchymal stem cells (BM-MSC) and the cardiomyoblast cell line H9c2. We were able to characterize, for the first time, complete profiles of oxilipins within these nanovesicles. We studied also the impact on these profiles, of the polyunsaturated fatty acids (PUFAs) know to be precursors of the inflammatory signaling molecules (AA, eicosapentaenoic acid EPA and Docosahexaenoic acid DHA), at physiological concentrations. By growing the progenitor cells under PUFAs supplementation, we provide a comprehensive assessment of the beneficial effect of ω-3 PUFA therapy. Actually, our results tend to support the resolving role of the inflammation that stromal cell-derived extracellular vesicles can have within the cardiac microenvironment.
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Affiliation(s)
- Nathalie Pizzinat
- I2MC, INSERM/UT3, 1av Jean Poulhès, BP84225, 31432, Toulouse-Cedex, France
| | | | | | - Muriel Blanzat
- IMRCP, CNRS/UT3, 118 Route de Narbonne, 31062, Toulouse-Cedex, France
| | - Lucie Perquis
- IMRCP, CNRS/UT3, 118 Route de Narbonne, 31062, Toulouse-Cedex, France
| | - Daniel Cussac
- I2MC, INSERM/UT3, 1av Jean Poulhès, BP84225, 31432, Toulouse-Cedex, France
| | - Angelo Parini
- I2MC, INSERM/UT3, 1av Jean Poulhès, BP84225, 31432, Toulouse-Cedex, France
| | - Verena Poinsot
- I2MC, INSERM/UT3, 1av Jean Poulhès, BP84225, 31432, Toulouse-Cedex, France.
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