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Related Experiment Videos

Surface modification of T-lymphocytes observed during rosetting.

P S Lin, D F Wallach

    Science (New York, N.Y.)
    |June 21, 1974
    PubMed
    Summary

    Human T-cells (lymphocytes) change their surface structure when interacting with red blood cells during rosetting. These T-cells develop numerous microvilli, especially where they contact the erythrocytes.

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    Area of Science:

    • Cell Biology
    • Immunology
    • Microscopy

    Background:

    • The rosetting reaction involves lymphocyte-erythrocyte interactions.
    • Lymphocyte surface topology is crucial for cell function.

    Purpose of the Study:

    • To characterize changes in T-cell surface topology during rosetting.
    • To investigate the role of scanning electron microscopy in visualizing these changes.

    Main Methods:

    • Utilized scanning electron microscopy (SEM).
    • Examined Molt-4 cells (T-cell line) interacting with sheep erythrocytes.

    Main Results:

    • Unreacted Molt-4 cells showed smooth surfaces with few microvilli.
    • Molt-4 cells in rosettes exhibited significant surface alterations.
    • Numerous, elongated microvilli emerged on T-cells, particularly at contact sites with erythrocytes.

    Conclusions:

    • T-cell surface topology is dynamically altered during the rosetting reaction.
    • SEM effectively visualizes these dynamic topological changes.
    • Microvillus formation is a key feature of T-cell-erythrocyte contact in rosetting.

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