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Investigation of interactions between poly-L-lysine-coated boron nitride nanotubes and C2C12 cells: up-take, cytocompatibility, and differentiation

Authors Ciofani G, Ricotti L, Danti S, Stefania Moscato, Nesti C, Delfo D\'Alessandro, Dinucci D, Chiellini F, Pietrabissa A, Petrini M, Arianna Menciassi A

Published 13 April 2010 Volume 2010:5 Pages 285—298

DOI https://doi.org/10.2147/IJN.S9879

Review by Single-blind

Peer reviewer comments 3


G Ciofani1, L Ricotti1, S Danti2,3, S Moscato4, C Nesti2, D D’Alessandro2,4, D Dinucci5, F Chiellini5, A Pietrabissa3, M Petrini2,3, A Menciassi1,6

1Scuola Superiore Sant’Anna, Pisa, Italy; 2CUCCS-RRMR, Center for the Clinical Use of Stem Cells – Regional Network of Regenerative Medicine, 3Department of Oncology, Transplants and Advanced Technologies, 4Department of Human Morphology and Applied Biology, University of Pisa, Pisa, Italy; 5Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM, Department of Chemistry and Industrial Chemistry, University of Pisa, San Piero a Grado, Italy; 6Italian Institute of Technology, Genova, Italy

Abstract: Boron nitride nanotubes (BNNTs) have generated considerable interest within the scientific community by virtue of their unique physical properties, which can be exploited in the biomedical field. In the present in vitro study, we investigated the interactions of poly-L-lysine-coated BNNTs with C2C12 cells, as a model of muscle cells, in terms of cytocompatibility and BNNT internalization. The latter was performed using both confocal and transmission electron microscopy. Finally, we investigated myoblast differentiation in the presence of BNNTs, evaluating the protein synthesis of differentiating cells, myotube formation, and expression of some constitutive myoblastic markers, such as MyoD and Cx43, by reverse transcription – polymerase chain reaction and Western blot analysis. We demonstrated that BNNTs are highly internalized by C2C12 cells, with neither adversely affecting C2C12 myoblast viability nor significantly interfering with myotube formation.

Keywords: boron nitride nanotubes, C2C12 cells, cytocompatibility, up-take, differentiation, MyoD, connexin 43

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