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Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Interferon regulatory factor 3 in adaptive immune responses.

Laure Ysebrant de Lendonck1, Valerie Martinet, Stanislas Goriely

  • 1WELBIO and Institute for Medical Immunology (IMI), Université Libre de Bruxelles, 8 rue Adrienne Bolland, 6041, Charleroi-Gosselies, Belgium.

Cellular and Molecular Life Sciences : CMLS
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Interferon regulatory factor 3 (IRF3) is crucial for antiviral innate immunity by activating type I interferons. This review explores how IRF3 also shapes adaptive immunity and influences immune disorders.

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Area of Science:

  • Immunology
  • Virology
  • Molecular Biology

Background:

  • Interferon regulatory factor 3 (IRF3) is a key transcription factor in the innate immune system.
  • IRF3 activation initiates the production of type I interferons and interferon-stimulated genes upon viral infection.
  • Emerging evidence highlights IRF3's role in modulating adaptive immune responses.

Purpose of the Study:

  • To review the mechanisms by which IRF3 influences adaptive immunity.
  • To discuss the function of IRF3 in antigen-presenting cells and T lymphocytes.
  • To explore IRF3's implications in the pathogenesis of immune disorders.

Main Methods:

  • Literature review of existing research on IRF3.
  • Analysis of IRF3's role in cellular immune response polarization.
  • Examination of IRF3's involvement in immune-related diseases.

Main Results:

  • IRF3 activation is central to the innate antiviral response.
  • IRF3 signaling impacts the adaptive immune system, including T cell responses.
  • Dysregulation of IRF3 pathways is linked to immune pathology.

Conclusions:

  • IRF3 is a critical link between innate and adaptive immunity.
  • Understanding IRF3's multifaceted roles is essential for developing therapies for viral infections and immune disorders.
  • Further research into IRF3 mechanisms can illuminate new therapeutic strategies.