Fabrication of Micromolded Gelatin Hydrogels for Long-Term Culture of Aligned Skeletal Myotubes

  • Gio C. Suh
  • Archana Bettadapur
  • Jeffrey W. Santoso
  • Megan L. McCain
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 1668)

Abstract

Cultured skeletal myotubes are a powerful in vitro system for identifying mechanisms of skeletal muscle development and disease. However, skeletal myotubes routinely delaminate from conventional culture substrates after approximately 1 week, which significantly hampers their utility for in vitro disease modeling and drug screening. To address this problem, we fabricated micromolded gelatin hydrogels as culture substrates that are more biomimetic than conventional substrates. On micromolded gelatin hydrogels, C2C12 skeletal myoblasts align and differentiate into skeletal myotubes that are stable in culture for multiple weeks. With this protocol, we detail three key steps: (1) Fabrication of micromolded gelatin hydrogels; (2) Culture of mouse C2C12 myoblasts and differentiation into myotubes; and (3) Quantification of myotube morphology. These substrates have many applications for skeletal muscle disease modeling and drug screening over longer time scales.

Key words

Skeletal muscle Myoblasts Myotubes Gelatin Hydrogels Micromolding 

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Copyright information

© Springer Science+Business Media LLC 2017

Authors and Affiliations

  • Gio C. Suh
    • 1
    • 2
  • Archana Bettadapur
    • 1
  • Jeffrey W. Santoso
    • 1
  • Megan L. McCain
    • 1
    • 2
  1. 1.Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of EngineeringUniversity of Southern CaliforniaLos AngelesUSA
  2. 2.Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine of USCUniversity of Southern CaliforniaLos AngelesUSA

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