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Related Experiment Videos

A simple quantitative method for evaluation of angiogenesis activity.

Hsin-Sheng Wang1, Ling-Ling Hwang, Hsin-Fang Sue

  • 1Division of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taipei, Taiwan, ROC.

Assay and Drug Development Technologies
|April 20, 2004
PubMed
Summary

This study presents a new, quantitative method for measuring angiogenesis using rat aorta ring cultures. This reproducible assay can effectively screen for compounds that promote or inhibit blood vessel formation.

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Area of Science:

  • Biomedical research
  • Cell biology
  • Vascular biology

Background:

  • Angiogenesis is crucial in physiological and pathological processes, including tumor growth and metastasis.
  • Existing methods for assessing angiogenesis are often qualitative, semi-quantitative, time-consuming, or expensive.
  • The ex vivo rat aorta model shows promise for physiological relevance in angiogenesis studies.

Purpose of the Study:

  • To establish a reproducible and quantitative assay for evaluating angiogenesis using rat aorta ring cultures.
  • To validate the assay's performance against known anti-angiogenic compounds and imaging analysis.

Main Methods:

  • Rat thoracic aortas were sectioned into 1-mm rings and cultured in a 3D extracellular matrix.
  • Endothelial cell outgrowth was cultured in endothelial cell growth medium.

Related Experiment Videos

  • Angiogenic activity was quantified using a colorimetric 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2H-tetrazolium/phenazine methosulfate assay.

    • Main Results:

    • The developed assay demonstrated consistent endothelial cell outgrowth from aorta rings.
    • The colorimetric assay provided reproducible results comparable to imaging analysis.
    • IC(50) values for known anti-angiogenics (SU5416, suramin, paclitaxel, 2-methoxyestradiol) were determined and validated the assay's efficacy.

    Conclusions:

    • A simple, reproducible, and quantitative assay for angiogenesis evaluation using cultured rat aorta rings has been established.
    • This assay is suitable for screening potential angiogenic and anti-angiogenic compounds.
    • The method offers a more efficient alternative to existing angiogenesis assays.