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An in vivo Assay to Test Blood Vessel Permeability
Published on: March 16, 2013
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Vascular Permeability Assays In Vivo.
Mir S Adil1, Payaningal R Somanath2
1Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|August 18, 2020
Summary
Vascular permeability (VP) is crucial for physiological transport but pathological leakage causes edema and inflammation. Measuring VP aids in developing therapies and understanding disease prognosis.
Area of Science:
- Physiology
- Pathology
- Biomedical Engineering
Background:
- Physiological vascular permeability (VP) regulates transport across endothelial barriers.
- Pathological VP compromises barrier integrity, leading to edema, inflammation, and severe conditions like ARDS and cancer.
- Accurate VP measurement is vital for therapeutic development and disease staging.
Purpose of the Study:
- To review established and alternative methods for measuring vascular permeability.
- To highlight the importance of VP assessment in disease and treatment optimization.
- To discuss the limitations of traditional VP assays.
Main Methods:
- Discussion of the Miles assay, a standard in vivo technique for assessing VP.
- Introduction of the fluorescein isothiocyanate-dextran lung permeability assay as an alternative.
- Adaptability of the fluorescein assay for measuring VP in organs like the brain and kidney.
Main Results:
- The Miles assay is a reliable, albeit time-consuming, method for VP assessment.
- The Miles assay does not account for factors like blood pressure influencing VP.
- The fluorescein isothiocyanate-dextran assay offers an alternative for VP and edema measurement.
Conclusions:
- Vascular permeability measurement is essential for understanding disease progression and therapeutic efficacy.
- Newer methods like the fluorescein assay provide alternatives with potential advantages over traditional techniques.
- Accurate VP assessment supports the development of targeted anti-leak therapies.
