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Methodologies for enumerating peripheral T lymphocytes.

J Lifter

    Journal of Clinical Immunology
    |July 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Flow cytometry is the most sensitive and consistent method for counting T lymphocytes in blood. Enhanced immunofluorescence is the best manual technique, offering reduced subjectivity and improved reproducibility for T cell enumeration.

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    Area of Science:

    • Immunology
    • Cell Biology

    Background:

    • Accurate identification and quantitation of T lymphocytes in peripheral blood are crucial for diagnosing and monitoring various immune conditions.
    • Traditional manual microscopic methods for T cell enumeration can be subjective and lack reproducibility.

    Purpose of the Study:

    • To compare the technical sensitivity and reproducibility of two flow cytometric devices and two manual microscopic techniques for T lymphocyte identification and quantitation.
    • To determine the optimal method for reliable T cell enumeration in peripheral blood.

    Main Methods:

    • Comparison of two flow cytometric devices (Ortho Spectrum III and Cytofluorograf FC200).
    • Evaluation of two manual microscopic techniques, including enhanced immunofluorescence.
    • Assessment of reproducibility by having two independent investigators perform manual methods.

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    Main Results:

    • Flow cytometry demonstrated superior sensitivity and consistency for T cell enumeration compared to manual methods.
    • The enhanced immunofluorescence technique emerged as the least subjective and most reproducible manual method.
    • Both flow cytometric devices provided reliable T cell counts, outperforming manual approaches.

    Conclusions:

    • Flow cytometry is the preferred method for sensitive and reproducible T lymphocyte quantitation.
    • Enhanced immunofluorescence offers a viable, less subjective alternative for manual T cell counting when flow cytometry is unavailable.