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Related Experiment Videos

Intercellular interaction observed by atomic force microscopy.

Su-Jin Kim1, Sejin Kim, Hyunjung Shin

  • 1Department of Anatomy, Korea University College of Medicine, Seoul 136-705, Republic of Korea.

Ultramicroscopy
|June 24, 2008
PubMed
Summary
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Microprocesses on cultured myoblasts, observed using atomic force microscopy (AFM), appear crucial for cell fusion. These cellular extensions facilitate intercellular interactions during myoblast fusion, revealing dynamics of cell-cell communication.

Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • Understanding intercellular interactions is key to cell fusion processes.
  • Myoblast fusion is essential for muscle development and regeneration.

Purpose of the Study:

  • To investigate the role of microprocesses in myoblast fusion.
  • To evaluate atomic force microscopy (AFM) for observing cell dynamics.

Main Methods:

  • Cultured myoblasts were observed using topological imaging.
  • Atomic force microscopy (AFM) was employed on fixed cells, both dried and in buffer.
  • Contact mode AFM was used for imaging fixed cells in liquid.

Main Results:

  • Prefusing myoblasts formed chains with numerous microprocesses along adjacent edges.

Related Experiment Videos

  • Filopodia and microvilli-connected cellular bridges spanned spaces between fusing cells.
  • AFM in liquid provided optimal imaging of cellular dynamics.

    • Conclusions:

    • Microprocesses likely play a significant role in myoblast fusion.
    • AFM is an effective tool for studying cell-cell interactions.
    • Imaging fixed cells in liquid is a valuable method for understanding cellular dynamics.