Related Experiment Video

Updated: Feb 17, 2026

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints
10:10

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

Published on: December 9, 2025

617

[Significance of leukocyte receptors in posttraumatic bone infection (author's transl)]

S Hierholzer, G Hierholzer

    Chirurgisches Forum Fur Experimentelle Und Klinische Forschung
    |January 1, 1980
    PubMed

    Insights

    Leukocytes from patients with chronic bone infections show impaired phagocytic ability due to defective complement C3 receptors. However, their immunoglobulin G (IgG) receptors remain functional, despite increased serum complement activity.

    Area of Science:

    • Immunology
    • Infectious Diseases
    • Cell Biology

    Context:

    • Chronic posttraumatic bone infections present a significant clinical challenge.
    • Impaired leukocyte function contributes to persistent infections.
    • Phagocytosis is a critical immune mechanism for clearing pathogens.

    Purpose:

    • To investigate the status of immunoglobulin G (IgG) and complement C3 receptors on leukocytes from patients with chronic posttraumatic bone infection.
    • To correlate receptor function with observed phagocytic deficits.

    Summary:

    • Leukocytes from patients with chronic bone infections exhibit reduced phagocytic capacity.
    • This deficit is associated with decreased or non-functional complement C3 receptors.
    • The immunoglobulin G (IgG) receptor system on these leukocytes remains intact.
    • Serum complement activity was found to be elevated in these patients.

    Impact:

    • Understanding these immune dysfunctions can guide therapeutic strategies for chronic bone infections.
    • Highlights the specific role of complement C3 receptors in host defense against these infections.
    • Suggests potential targets for immunomodulatory interventions to restore phagocytic function.

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