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Related Experiment Videos

[Increased autorosette levels with aging].

C Fournier, J Charreire

    Annales D'Immunologie
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Autorosette levels in human blood are higher in women and increase with age. These cells may be immature T-cells, confirmed by their properties and rosettes with red blood cells.

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    Area of Science:

    • Immunology
    • Cell Biology

    Context:

    • Autorosettes, a type of cell aggregation, are observed in human peripheral blood.
    • Previous research on autorosette characteristics and their cellular origins is limited.

    Purpose:

    • To investigate the levels of autorosettes in human peripheral blood.
    • To determine the relationship between autorosette levels and demographic factors like sex and age.
    • To elucidate the cellular origin of autorosettes, particularly their potential T-cell lineage.

    Summary:

    • Autorosette levels were analyzed in 115 normal subjects.
    • Higher autorosette levels were observed in women compared to men.
    • Autorosette levels increased with age in both sexes.
    • Autorosettes exhibit properties consistent with immature T-cells, such as adherence to nylon wool and reduction after E-rosette depletion.

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  • The T-cell origin was further supported by the formation of mixed rosettes with autologous erythrocytes and sheep red blood cells.

    • Impact:

    • This study provides novel insights into the demographic variations of autorosette levels in healthy individuals.
    • The findings suggest a potential role for immature T-cells in autorosette formation.
    • Establishes a foundation for further research into the functional significance of autorosettes in immune responses and potential clinical applications.