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Antioxidants for bone marrow cryopreservation.

G Matthes1, U Hübner, M Gränz

  • 1Institute of Transfusiology and Transplantology, Medical School (Charité), Humboldt University, Berlin.

Folia Haematologica (Leipzig, Germany : 1928)
|January 1, 1989
PubMed
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Adding antioxidants to preservation solutions significantly enhances the cryoprotection of human bone marrow stem cells. This method doubles the survival of colony-forming cells after cryopreservation, particularly protecting immature cells.

Area of Science:

  • Cell Biology
  • Cryobiology
  • Hematology

Background:

  • Cryopreservation of human bone marrow cells is crucial for transplantation.
  • Cellular damage during freezing and thawing reduces post-transplant viability.
  • Antioxidants are investigated for their potential to mitigate cryoinjury.

Purpose of the Study:

  • To evaluate the efficacy of antioxidants in improving the cryoprotection of human bone marrow cells.
  • To determine the impact of antioxidants on the viability of stem cells post-cryopreservation.
  • To assess the protection of immature colony-forming cells.

Main Methods:

  • Human bone marrow cells were preserved with added antioxidants.
  • Cell viability was assessed by culturing granulocyte-macrophage colony-forming cells (GM-CFC) in agar.

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  • Cells were stored at -196°C before viability assessment.

    • Main Results:

    • Antioxidants (selenomethionine, methionine, tocopherol, penicillin/Fe++) improved stem cell tolerance to freezing and thawing.
    • The number of surviving GM-CFC doubled compared to control groups.
    • Immature colony-forming cells demonstrated enhanced protection.

    Conclusions:

    • Antioxidant supplementation is an effective strategy to improve cryopreservation outcomes for human bone marrow cells.
    • This approach enhances stem cell survival and protects more primitive progenitor cells.
    • Antioxidants represent a promising adjunct for clinical cryopreservation protocols.