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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
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The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
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T Cell Types and Functions01:24

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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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Related Experiment Video

Updated: Jun 15, 2025

Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity
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Switching off autoimmunity.

Jon D Laman1, Michael Molloy2, Randolph J Noelle2,3

  • 1Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands.

Science (New York, N.Y.)
|August 22, 2024
PubMed
Summary
This summary is machine-generated.

CD40L antagonists, discovered 30 years ago, are emerging as effective treatments for autoimmune diseases. These drugs target the CD40 ligand pathway, offering new hope for patients.

Area of Science:

  • Immunology
  • Pharmacology

Background:

  • The CD40 ligand (CD40L) pathway plays a crucial role in immune responses.
  • Dysregulation of this pathway is implicated in the pathogenesis of various autoimmune diseases.

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