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Internalization and fate of silica nanoparticles in C2C12 skeletal muscle cells: evidence of a beneficial effect on myoblast fusion

dc.contributor.authorPOUSSARD, Sylvie
dc.contributor.authorDECOSSAS, Marion
dc.contributor.authorLE BIHAN, Olivier
dc.contributor.authorMORNET, Stephane
dc.contributor.authorNAUDIN, Gregoire
dc.contributor.authorLAMBERT, Olivier
dc.date.accessioned2020-09-03T08:01:57Z
dc.date.available2020-09-03T08:01:57Z
dc.date.issued2015
dc.identifier.issn1178-2013
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10935
dc.description.abstractEnThe use of silica nanoparticles for their cellular uptake capability opens up new fields in biomedical research. Among the toxicological effects associated with their internalization, silica nanoparticles induce apoptosis that has been recently reported as a biochemical cue required for muscle regeneration. To assess whether silica nanoparticles could affect muscle regeneration, we used the C2C12 muscle cell line to study the uptake of fluorescently labeled NPs and their cellular trafficking over a long period. Using inhibitors of endocytosis, we determined that the NP uptake was an energy-dependent process mainly involving macropinocytosis and clathrin-mediated pathway. NPs were eventually clustered in lysosomal structures. Myoblasts containing NPs were capable of differentiation into myotubes, and after 7 days, electron microscopy revealed that the NPs remained primarily within lysosomes. The presence of NPs stimulated the formation of myotubes in a dose-dependent manner. NP internalization induced an increase of apoptotic myoblasts required for myoblast fusion. At noncytotoxic doses, the NP uptake by skeletal muscle cells did not prevent their differentiation into myotubes but, instead, enhanced the cell fusion.
dc.language.isoen
dc.title.enInternalization and fate of silica nanoparticles in C2C12 skeletal muscle cells: evidence of a beneficial effect on myoblast fusion
dc.typeArticle de revue
dc.identifier.doi10.2147/ijn.s74158
dc.subject.halChimie/Matériaux
bordeaux.journalInternational Journal of Nanomedicine
bordeaux.page1479-1492
bordeaux.volume10
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN) - UMR 5248*
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN, UMR 5248)
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
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