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Related Experiment Videos

Phagocyte recognition by lectin receptors.

D M Weir, J Stewart, E Glass

    Immunobiology
    |April 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    A bacterial binding lectin receptor on phagocytes is downregulated by chemoattractants and linked to MHC class II molecules, suggesting a role in immune responses beyond bacterial clearance.

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    Area of Science:

    • Immunology
    • Cell Biology

    Background:

    • A lectin-like receptor facilitating bacterial binding to macrophages is present on various phagocytes.
    • This receptor plays a role in the inflammatory response.

    Purpose of the Study:

    • To investigate the role of the lectin receptor in the inflammatory response.
    • To explore the relationship between the lectin receptor and major histocompatibility complex (MHC) gene products.

    Main Methods:

    • Examining changes in lectin receptor expression in response to chemoattractants.
    • Using conventional and monoclonal antibodies against I-region determinants to assess their effect on bacterial binding.

    Main Results:

    • Chemoattractants decreased lectin receptor expression, while C3 and Fc receptor expression remained unchanged or increased.

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  • Antibodies against I-region determinants inhibited bacterial binding to macrophages.

    • Conclusions:

    • The lectin receptor's expression is modulated during inflammation.
    • A link exists between MHC I-region gene products and the bacterial binding lectin receptor.
    • The lectin receptor may be involved in antigen presentation and T-lymphocyte interactions, contributing to adaptive immune responses.