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Related Concept Videos

Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...

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Related Experiment Video

Updated: Jun 27, 2026

Using Cell-substrate Impedance and Live Cell Imaging to Measure Real-time Changes in Cellular Adhesion and De-adhesion Induced by Matrix Modification
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Using Cell-substrate Impedance and Live Cell Imaging to Measure Real-time Changes in Cellular Adhesion and De-adhesion Induced by Matrix Modification

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Quantifying cell-matrix adhesion dynamics in living cells using interference reflection microscopy.

M R Holt1, Y Calle, D H Sutton

  • 1King's College London, The Randall Division of Cellular and Molecular Biophysics, New Hunt's House, London, SE1 1UL, United Kingdom. mark_robert.holt@kcl.ac.uk

Journal of Microscopy
|November 20, 2008
PubMed
Summary
This summary is machine-generated.

We developed automated image analysis to track cell adhesion dynamics. Vinculin is crucial for stabilizing focal adhesions, as its absence increases their turnover.

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Published on: January 21, 2019

Area of Science:

  • Cell biology
  • Microscopy
  • Image analysis

Background:

  • Focal adhesions and podosomes are critical integrin-mediated cell-substratum contacts.
  • Interference reflection microscopy (IRM) visualizes these structures in live cells.

Purpose of the Study:

  • To develop automated image-processing methods for quantifying adhesion turnover.
  • To characterize focal adhesion dynamics in cells with altered vinculin expression.

Main Methods:

  • Automated image processing of IRM time sequences.
  • Generation of adhesion maps detailing spatial and temporal changes.
  • Analysis of focal adhesion dynamics in vinculin-deficient mouse embryo fibroblasts.

Main Results:

  • Developed automated procedures to quantify adhesion turnover from IRM images.
  • Adhesion maps revealed increased assembly, disassembly, and/or translocation of focal adhesions upon loss of vinculin.
  • Demonstrated utility for studying rapid podosome dynamics in dendritic cells.

Conclusions:

  • Vinculin plays a significant role in stabilizing focal adhesions.
  • The developed image analysis method is effective for studying cell-substratum contact dynamics.