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Donor organ preservation fluids differ in their effect on endothelial cell function.

S Cullen1, S G Haworth, J D Warren

  • 1Institute of Child Health, London, England.

The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation
|November 1, 1991
PubMed
Summary
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Donor organ preservation fluids impact endothelial cell function. A blood-based solution significantly inhibited endothelium-derived relaxing factor (EDRF) release, unlike non-blood-based fluids, highlighting preservation fluid choice importance in transplantation.

Area of Science:

  • Transplantation immunology
  • Cellular physiology
  • Biomedical engineering

Background:

  • Successful organ transplantation relies on maintaining cellular function during preservation.
  • Endothelial cells play a crucial role in vascular health through the release of endothelium-derived relaxing factor (EDRF).

Purpose of the Study:

  • To evaluate the impact of four common donor organ preservation fluids on endothelial cell function.
  • To assess the ability of cultured bovine pulmonary artery endothelial cells to release EDRF after preservation fluid exposure.

Main Methods:

  • Cultured endothelial cells on microcarrier beads were exposed to University of Wisconsin (Belzer's) solution, Marshall's preservation fluid, Euro-Collins solution, or a blood-based preservation fluid at 4°C for 6 hours.
  • Following preservation, cells were incubated at 37°C and stimulated with bradykinin to measure EDRF release via bioassay.

Related Experiment Videos

  • EDRF release was compared between cells exposed to preservation fluids and control cells maintained at 37°C.

    • Main Results:

    • Exposure to University of Wisconsin (Belzer's) solution, Marshall's preservation fluid, and Euro-Collins solution did not significantly affect bradykinin-stimulated EDRF release.
    • The blood-based preservation fluid completely inhibited EDRF release (p < 0.01, ANOVA).
    • The inhibition of EDRF release by the blood-based solution was attributed to its acidity.

    Conclusions:

    • Donor organ preservation fluids exhibit differential effects on endothelial cell function.
    • The choice of preservation fluid can significantly impact the viability and function of endothelial cells, with implications for organ transplantation success.
    • Blood-based preservation solutions, due to their acidity, may compromise endothelial cell function more than non-blood-based alternatives.