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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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The lymphatic system plays a crucial role in bolstering our immune system. It consists of a network of lymphoid organs, lymph, and lymphatic vessels that provide structural and functional support in safeguarding the body against pathogens such as viruses and bacteria.
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Related Experiment Video

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Role of interferons in SLE.

Anders A Bengtsson1, Lars Rönnblom2

  • 1Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Rheumatology, 22185 Lund, Sweden.

Best Practice & Research. Clinical Rheumatology
|December 12, 2017
PubMed
Summary

Systemic lupus erythematosus (SLE) involves excessive type I interferons (IFNs). This review covers IFN regulation, genetics, environmental factors, and therapies targeting the type I IFN system in SLE.

Keywords:
Biologic therapyInterferon type ILupus erythematosus, systemicPlasmacytoid dendritic cell

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Area of Science:

  • Immunology
  • Rheumatology
  • Autoimmune Diseases

Background:

  • Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by widespread organ inflammation.
  • Hallmarks of SLE include excessive type I interferon (IFN) production and autoantibodies against nucleic acids.
  • Sustained type I IFN production stems from continuous stimulation of plasmacytoid dendritic cells by endogenous nucleic acids.

Purpose of the Study:

  • To review the current understanding of the role of type I interferons (IFNs) in Systemic lupus erythematosus (SLE).
  • To explore the regulation of type I IFNs, genetic influences, and environmental factors in SLE pathogenesis.
  • To discuss emerging therapies aimed at inhibiting the type I IFN system in SLE patients.

Main Methods:

  • Literature review of current research on type I IFNs in SLE.
  • Analysis of the mechanisms of type I IFN system activation and its consequences.
  • Examination of genetic and environmental factors contributing to SLE.
  • Overview of novel therapeutic strategies targeting type I IFNs.

Main Results:

  • Type I IFNs significantly impact both innate and adaptive immunity in SLE.
  • An "IFN signature" (overexpression of type I IFN-regulated genes) is a key indicator in SLE.
  • Genetic background and environmental factors play crucial roles in modulating the type I IFN system in SLE.

Conclusions:

  • The type I IFN system is central to the pathogenesis of Systemic lupus erythematosus.
  • Understanding IFN regulation and contributing factors is vital for developing effective SLE treatments.
  • Targeting the type I IFN pathway represents a promising therapeutic avenue for SLE management.