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Published on: May 31, 2018

[Role of interleukin-2 receptor in mitogenic action of C-reactive protein on lymphocytes]

P G Nazarov, A V Polevshchikov

    Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
    |November 1, 1993
    PubMed

    Insights

    Native pentameric C-reactive protein (CRP) and its subunits interfere with IL-2 signaling by blocking IL-2 receptors. This competition impacts lymphocyte proliferation, suggesting a complex CRP-cytokine system relationship.

    Area of Science:

    • Immunology
    • Molecular Biology

    Context:

    • C-reactive protein (CRP) is an acute-phase protein with known immune functions.
    • Interleukin-2 (IL-2) is a critical cytokine for lymphocyte proliferation.

    Purpose:

    • To investigate the competitive interaction between CRP and IL-2 at the lymphocyte proliferation level.
    • To elucidate the mechanisms underlying CRP's mitogenic action and its evolutionary relationship with cytokines.

    Summary:

    • Pentameric CRP and its monomeric forms compete with IL-2 for lymphocyte proliferation triggering.
    • Structural and antigenic similarities between CRP and IL-2 enable CRP to block IL-2 receptors.
    • The study discusses the mechanisms of CRP's mitogenic effects and the evolutionary basis of the CRP-cytokine system.

    Impact:

    • Reveals a novel mechanism of immune modulation by CRP, involving direct interference with IL-2 signaling.
    • Highlights the intricate relationship between acute-phase proteins and cytokine networks.
    • Provides insights into the evolutionary origins of immune system components and their interactions.

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