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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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Related Experiment Video

Updated: Jul 11, 2026

Fluorescence Biomembrane Force Probe: Concurrent Quantitation of Receptor-ligand Kinetics and Binding-induced Intracellular Signaling on a Single Cell
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Profiling cell-biomaterial interactions via cell-based fluororeporter imaging.

Matthew D Treiser1, Er Liu, Robert A Dubin

  • 1Rutgers University, Piscataway, NJ 08854, USA.

Biotechniques
|October 3, 2007
PubMed
Summary
This summary is machine-generated.

High-resolution imaging of live cells using fluorescent reporters enables quantitative assessment of cell-material interactions. This approach accelerates biomaterial development for tissue engineering by providing objective, high-throughput data on cell behavior and structure.

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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Tissue Engineering

Background:

  • High-throughput screening accelerates pharmaceutical development but similar methods for biomaterials are lacking.
  • Current assays for cell responses to biomaterials are often subjective and low-throughput.
  • Accelerated biomaterial development requires objective, dynamic, and high-throughput screening methods.

Purpose of the Study:

  • To develop and validate a high-resolution imaging approach using cell-based fluororeporters for quantitative assessment of cell-material interactions.
  • To establish quantifiable metrics for cell functional endpoints and intracellular features on biomaterial substrates.
  • To demonstrate the utility of this approach for discerning combinatorial variations in biomaterial composition.

Main Methods:

  • Genetically engineered mammalian cell lines expressing green fluorescent protein (GFP) fusion genes for live cell imaging.
  • Combinatorial synthesis of model biomaterial substrates.
  • High-content imaging to acquire quantifiable morphometric and densitometric descriptors of cell features and behaviors.
  • Analysis of descriptors to correlate with substrate composition and cell responses.

Main Results:

  • High-content imaging yielded numerous quantifiable descriptors of cell cytoskeleton and behaviors like apoptosis.
  • The method successfully distinguished between combinatorial variations in substrate composition.
  • Live cell imaging with GFP reporters provided unique insights compared to fixed cell preparations.

Conclusions:

  • Quantitative live fluororeporter cell imaging offers a powerful tool for metrology of cell-material interactions.
  • This approach can accelerate the development of novel biomaterials for cell and tissue engineering.
  • The method provides objective, dynamic, and high-throughput data crucial for advanced biomaterial design.