Myotube formation on gelatin nanofibers - multi-walled carbon nanotubes hybrid scaffolds

Biomaterials. 2014 Aug;35(24):6268-77. doi: 10.1016/j.biomaterials.2014.04.021. Epub 2014 May 13.

Abstract

Engineering functional muscle tissue requires the formation of densely packed, aligned, and mature myotubes. To enhance the formation of aligned myotubes with improved contractibility, we fabricated aligned electrospun gelatin multi-walled carbon nanotubes (MWNTs) hybrid fibers that were used as scaffolds for the growth of myoblasts (C2C12). The MWNTs significantly enhanced myotube formation by improving the mechanical properties of the resulting fibers and upregulated the activation of mechanotransduction related genes. In addition, the fibers enhanced the maturation of the myotubes and the amplitude of the myotube contractions under electrical stimulation (ES). Such hybrid material scaffolds may be useful to direct skeletal muscle cellular organization, improve cellular functionality and tissue formation.

Keywords: C2C12; Carbon nanotubes; Electrospinning; Gelatin fibers; Myotube.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Differentiation / drug effects
  • Cell Differentiation / genetics
  • Cell Line
  • Cell Survival / drug effects
  • Cell Survival / genetics
  • Cross-Linking Reagents / pharmacology
  • Electric Stimulation
  • Gelatin / pharmacology*
  • Gene Expression Regulation / drug effects
  • Mice
  • Microscopy, Fluorescence
  • Muscle Fibers, Skeletal / cytology*
  • Muscle Fibers, Skeletal / drug effects
  • Nanofibers / chemistry*
  • Nanofibers / ultrastructure
  • Nanotubes, Carbon / chemistry*
  • Nanotubes, Carbon / ultrastructure
  • Sus scrofa
  • Tissue Scaffolds / chemistry*

Substances

  • Cross-Linking Reagents
  • Nanotubes, Carbon
  • Gelatin