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Related Experiment Videos

Bovine lymphocytes: enhanced E-rosette formation after storage or gradient centrifugation.

D A Higgins, M J Stack

    Clinical and Experimental Immunology
    |August 1, 1977
    PubMed
    Summary

    Optimizing the E-rosette test for bovine T cells involves pre-incubation and storage in specific solutions like fetal calf serum (FCS) or bovine serum albumin (BSA). These methods enhance rosette formation, suggesting a link to immature T cell properties.

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    Area of Science:

    • Immunology
    • Cell Biology

    Background:

    • The E-rochette test is used to identify T lymphocytes.
    • Factors influencing E-rosette formation in bovine lymphocytes require further investigation.

    Purpose of the Study:

    • To optimize conditions for bovine E-rosette test sensitivity.
    • To investigate the role of pre-incubation and storage on rosette formation.

    Main Methods:

    • Bovine thymus lymphocytes were incubated with sheep red blood cells (SRBCs) under various conditions.
    • Lymphocytes were stored in fetal calf serum (FCS) or bovine serum albumin (BSA) solutions at different temperatures and durations.
    • Centrifugation through BSA or sodium metrizoate (NaM) gradients was employed.

    Main Results:

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  • Pre-incubation at 0°C and storage at 4°C in FCS or BSA significantly enhanced rosette counts.
  • Storage in BSA followed by testing in FCS yielded optimal results.
  • Centrifugation through BSA gradients doubled rosette formation.

    • Conclusions:

    • E-rosette formation appears to be a characteristic of immature bovine T cells.
    • Cellular changes during storage may affect the ability of T cells to form rosettes.