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Related Experiment Videos

Unchanged electrophoretic mobility in human cryopreserved lymphocytes.

J Chassagne, B Montaret, J M Bidet

    Biomedicine / [Publiee Pour L'A.A.I.C.I.G.]
    |October 1, 1977
    PubMed
    Summary

    Freezing and thawing significantly alter cell surface charge in human lymphocytes. This change was confirmed using various membrane markers, indicating cryopreservation impacts lymphocyte surface properties.

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    Area of Science:

    • Immunology
    • Cell Biology
    • Biophysics

    Background:

    • Cell surface charge is a critical parameter influencing cell behavior and interactions.
    • Cryopreservation techniques are widely used for preserving biological samples, including lymphocytes.
    • Understanding the effects of cryopreservation on cell surface properties is essential for accurate downstream analysis.

    Purpose of the Study:

    • To investigate the impact of freezing and thawing on the cell surface charge of human peripheral blood lymphocytes.
    • To determine if cryopreservation alters the membrane characteristics of lymphocytes.

    Main Methods:

    • Analytical electrophoresis was employed to assess the cell surface charge.
    • Fresh and cryopreserved human peripheral blood lymphocytes were analyzed.

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  • Different membrane markers, including E, EA, and EAC rosettes, were used to confirm findings.

    • Main Results:

    • Freezing and thawing were observed to change the cell surface charge of human lymphocytes.
    • The observed alterations in cell surface charge were consistent across different membrane marker assays.
    • Cryopreservation demonstrably affects the electrophoretic mobility of lymphocytes.

    Conclusions:

    • Cryopreservation significantly alters the cell surface charge of human peripheral blood lymphocytes.
    • The changes in surface charge are detectable and confirmable using various membrane markers.
    • These findings highlight the importance of considering cryopreservation-induced changes in lymphocyte surface properties for research and clinical applications.