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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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Protrusion Force Microscopy: A Method to Quantify Forces Developed by Cell Protrusions
06:37

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Published on: June 16, 2018

Force probing cell shape changes to molecular resolution.

Martin P Stewart1, Yusuke Toyoda, Anthony A Hyman

  • 1ETH Zurich, Biosystems Science and Engineering, CH-4058 Basel, Switzerland.

Trends in Biochemical Sciences
|June 8, 2011
PubMed
Summary
This summary is machine-generated.

Atomic force microscopy (AFM) offers a multiscale approach to study cell shape changes. This review highlights AFM

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Area of Science:

  • Nanotechnology
  • Cell Biology
  • Biophysics

Background:

  • Cell shape dynamics are crucial for biological processes.
  • Mitosis involves significant cellular shape transformations.
  • Understanding these changes requires multiscale analysis.

Purpose of the Study:

  • To review the application of Atomic Force Microscopy (AFM) in characterizing mitotic cell shape changes.
  • To discuss how AFM elucidates molecular mechanisms behind cellular morphology.
  • To highlight AFM's role in understanding cell mechanics.

Main Methods:

  • Atomic Force Microscopy (AFM) for nanoscopic force sensing.
  • AFM-based mechanical assays to measure cellular forces (rounding force, hydrostatic pressure).
  • Single-molecule force spectroscopy to analyze protein interactions and regulatory mechanisms.

Main Results:

  • AFM can quantify the forces and pressures associated with mitotic cell rounding.
  • Single-molecule force spectroscopy reveals functional regulation of individual proteins.
  • AFM provides insights into the mechanical properties governing cell shape change.

Conclusions:

  • AFM is a powerful tool for multiscale investigation of cell shape changes.
  • Combining AFM with other advanced techniques will deepen understanding of mitosis.
  • Nanomechanical methods are essential for deciphering cellular processes at molecular and cellular levels.