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Related Experiment Videos

Proteome dynamics during C2C12 myoblast differentiation.

Thomas Kislinger1, Anthony O Gramolini, Yan Pan

  • 1Program in Proteomics and Bioinformatics, University of Toronto, Toronto, Ontario M5S 3E2, Canada.

Molecular & Cellular Proteomics : MCP
|April 13, 2005
PubMed
Summary

This study used mass spectrometry to analyze protein changes during C2C12 myoblast differentiation. It identified distinct protein expression patterns crucial for skeletal muscle development and function.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • C2C12 myoblasts are a key model for studying skeletal muscle development.
  • Understanding the biochemical changes during myogenesis is essential.

Purpose of the Study:

  • To comprehensively examine proteome alterations during C2C12 myoblast differentiation.
  • To identify proteins and pathways involved in skeletal muscle cell specification and development.

Main Methods:

  • Large-scale, gel-free tandem mass spectrometry was employed for global proteome analysis.
  • Capillary-scale multidimensional liquid chromatography coupled with high-throughput shotgun sequencing tracked ~1,800 proteins over time.

Main Results:

  • Hierarchical clustering revealed distinct temporal expression waves of proteins involved in signaling, transcription, metabolism, and muscle contraction.

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  • Stage-specific expression of several hundred uncharacterized proteins suggests novel roles in myogenesis.

    • Conclusions:

    • Proteomic profiling provides a holistic view of biochemical coordination during skeletal muscle development.
    • These findings complement gene expression studies and offer insights into myogenesis and muscle function.