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Related Concept Videos

Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
Anchoring junctions mechanically attach a cell to the...
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...
Studying the Cytoskeleton01:17

Studying the Cytoskeleton

The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
Cell Motility through Blebbing01:16

Cell Motility through Blebbing

Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
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Related Experiment Video

Updated: Jun 25, 2026

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
09:20

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Published on: October 4, 2010

Live cell interferometry reveals cellular dynamism during force propagation.

Jason Reed1, Joshua J Troke, Joanna Schmit

  • 1Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles Young Drive East, Los Angeles, California 90095, USA.

ACS Nano
|February 12, 2009
PubMed
Summary
This summary is machine-generated.

Live-cell interferometry (LCI) rapidly visualizes cell responses to mechanical stimulation within seconds, detecting cytoskeletal remodeling faster than traditional methods. This label-free technique offers a significant advantage for live cell analysis.

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Related Experiment Videos

Last Updated: Jun 25, 2026

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
09:20

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Published on: October 4, 2010

Measurement of Force-Sensitive Protein Dynamics in Living Cells Using a Combination of Fluorescent Techniques
08:28

Measurement of Force-Sensitive Protein Dynamics in Living Cells Using a Combination of Fluorescent Techniques

Published on: November 2, 2018

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy
08:41

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy

Published on: June 27, 2013

Area of Science:

  • Cell biology
  • Biophysics
  • Microscopy

Background:

  • Cell morphology, motion, and rigidity changes are hallmarks of diseases like cancer.
  • Conventional microscopy and atomic force microscopy (AFM) have limitations in detecting rapid cellular responses.

Purpose of the Study:

  • To employ live-cell interferometry (LCI) for rapid, label-free visualization of whole-cell responses to mechanical stimulation.
  • To detect cytoskeletal remodeling within seconds, significantly faster than conventional methods.

Main Methods:

  • Live-cell interferometry (LCI) was used to monitor cellular changes in real-time.
  • Mechanical stimulation was applied to observe cellular responses on a second timescale.

Main Results:

  • LCI visualized rapid cellular responses to mechanical stimulation within 200 seconds.
  • Detected subtle changes in cell content and shape, often undetectable by conventional microscopy or AFM.
  • LCI provided quantitative, label-free reconstruction of the cell body.

Conclusions:

  • LCI offers a rapid and quantitative method for analyzing live cell mechanical responses.
  • This technique overcomes limitations of traditional microscopy and flow cytometry by eliminating the need for cell labeling or fixation.