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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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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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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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Author Spotlight: Exploring the Role of Inflammation in the Co-occurrence of Primary Sjogren's Syndrome and Lung Adenocarcinoma
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Sarcoidosis and autoimmunity.

Minhyuk Song1, Michael Manansala1, Prashant J Parmar2

  • 1Division of Academic Internal Medicine.

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Sarcoidosis, a multisystem disease, shows immune dysregulation similar to autoimmune conditions. Research suggests sarcoidosis may be an autoimmune disease, paving the way for targeted immunotherapy treatments.

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Area of Science:

  • Immunology
  • Rheumatology
  • Pulmonology

Background:

  • Sarcoidosis is a multisystem granulomatous disease with uncertain pathogenesis.
  • While infectious triggers and HLA associations are noted, immune dysregulation patterns resemble other autoimmune diseases.
  • Sarcoidosis frequently co-occurs with other autoimmune conditions.

Purpose of the Study:

  • To review recent advancements in understanding sarcoidosis immune dysregulation.
  • To propose an expanded definition of autoimmunity in sarcoidosis.
  • To explore implications for future targeted immunotherapy.

Main Methods:

  • Literature review of recent developments in sarcoidosis research.
  • Analysis of immune dysregulation patterns in sarcoidosis patients.
  • Examination of comorbid autoimmune conditions in sarcoidosis.

Main Results:

  • Sarcoidosis exhibits cellular immune dysregulation similar to autoimmune diseases like rheumatoid arthritis.
  • Large population studies indicate frequent co-presentation of sarcoidosis with other autoimmune diseases.
  • Current understanding supports considering sarcoidosis as an autoimmune disease.

Conclusions:

  • Advancements support classifying sarcoidosis as an autoimmune disease.
  • Higher risk of comorbid autoimmune conditions presents opportunities for research.
  • Future treatments may involve targeted immunotherapy regimens for sarcoidosis.