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Título: Proinflammatory macrophages enhance the regenerative capacity of human myoblasts by modifying their kinetics of proliferation and differentiation
Autor : Bencze, Maximilien
Negroni, Elisa
Vallese, Denis
Yacoub-Youssef, Houda
Chaouch, Soraya
Wolff, Annie
Aamiri, Ahmed
Di Santo, James P.
Chazaud, Bénédicte
Butler-Browne, Gillian
Savino, Wilson
Mouly, Vincent
Riederer, Ingo
Afiliación: CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
INSERM, U1016. Institut Cochin. Paris, France / Université Paris Descartes. Paris, France.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
Université d’Agadir. Faculté des Sciences. Départment de Biologie. Agadir, Marocco.
Innate Immunity Unit. Inserm U668. Institut Pasteur. Paris, France.
INSERM. U1016. Institut Cochin, Paris, France / Université Paris Descartes. Paris, France.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisa sobre o Timo. Rio de Janeiro, RJ. Brasil.
CNRS, UMR7215., Institut de Myologie. Paris, France / Université Pierre et Marie Curie. UM76. Paris, France.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Pesquisa sobre o Timo. Rio de Janeiro, RJ. Brasil.
Resumen: Macrophages have been shown to be essential for muscle repair by delivering trophic cues to growing skeletal muscle precursors and young fibers. Here, we investigated whether human macrophages, either proinflammatory or anti-inflammatory, coinjected with human myoblasts into regenerating muscle of Rag2(-/-) γC(-/-) immunodeficient mice, could modify in vivo the kinetics of proliferation and differentiation of the transplanted human myogenic precursors. Our results clearly show that proinflammatory macrophages improve in vivo the participation of injected myoblasts to host muscle regeneration, extending the window of proliferation, increasing migration, and delaying differentiation. Interestingly, immunostaining of transplanted proinflammatory macrophages at different time points strongly suggests that these cells are able to switch to an anti-inflammatory phenotype in vivo, which then may stimulate differentiation during muscle regeneration. Conceptually, our data provide for the first time in vivo evidence strongly suggesting that proinflammatory macrophages play a supportive role in the regulation of myoblast behavior after transplantation into preinjured muscle, and could thus potentially optimize transplantation of myogenic progenitors in the context of cell therapy.
Palabras clave en ingles: proinflammatory macrophages
Human Myoblasts
Regenerative Capacity
kinetics
Palabras clave en portugues: Mioblastos Humanos
Capacidade Regenerativa
Macrófagos proinflamatórios
Cinética
Fecha de publicación: 2012
Editorial : Elsevier
Referencia: BENCZE, Maximilien; et al. Proinflammatory Macrophages Enhance the Regenerative Capacity of Human Myoblasts by Modifying Their Kinetics of Proliferation and Differentiation. Molecular Therapy, v.20, n.11, p.2168-2179, Nov. 2012.
DOI: 10.1038/mt.2012.189
ISSN : 1525-0016
Derechos de autor: restricted access
Aparece en las colecciones: IOC - Artigos de Periódicos

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