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Related Concept Videos

Phases of Wound Repair01:28

Phases of Wound Repair

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Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
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Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model
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A novel approach to quantify the wound closure dynamic.

Flora Ascione1, Andrea Maria Guarino2, Viola Calabrò2

  • 1Dipartimento di Ingegneria Chimica dei Materiali e della Produzione Industriale (DICMAPI) Università di Napoli Federico II, P.le Tecchio, 80, 80125 Napoli, Italy.

Experimental Cell Research
|February 1, 2017
PubMed
Summary

This study introduces a novel method to improve the Wound Healing (WH) assay. By accounting for cell density, this approach enhances the reliability of cell migration studies.

Keywords:
Breast CancerCell MigrationCell ProliferationDiffusionImage AnalysisMathematical modelingTime-lapse MicroscopyTransport PhenomenaWound Healing

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Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • The Wound Healing (WH) assay is crucial for studying cell migration in vitro.
  • Assay reliability is often compromised by experimental factors like uneven cell density.
  • Discrepancies in wound closure kinetics can arise from variations in cell density.

Purpose of the Study:

  • To address the issue of variable cell density affecting WH assay reproducibility.
  • To develop a novel methodological approach to correct for cell density variations.
  • To enhance the reliability and reproducibility of in vitro cell migration analysis.

Main Methods:

  • Observed a linear relationship between wound closure velocity and cell density.
  • Proposed a data scaling method based on transport phenomena and diffusion-reaction concepts.
  • Applied the methodology to MDA-MB-231 breast cancer cells with modified gene expression.

Main Results:

  • Demonstrated a significant improvement in the reproducibility of the WH assay.
  • Showcased enhanced reliability in analyzing wound closure kinetics.
  • Validated the approach on breast cancer cell lines with altered migratory behavior.

Conclusions:

  • The proposed scaling methodology effectively corrects for cell density-related errors in WH assays.
  • This approach significantly improves the accuracy and consistency of in vitro cell migration data.
  • The method offers a valuable tool for researchers studying physiological and pathological cell migration.