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Related Concept Videos

Autoimmune Disorders01:29

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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.
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Epigenetic Regulation01:37

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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Epigenetic alterations underlying autoimmune diseases.

Saeed Aslani1, Mahdi Mahmoudi2, Jafar Karami1

  • 1a Department of Immunology , School of Medicine, Tehran University of Medical Sciences , Tehran , Iran .

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Epigenetics offers new insights into autoimmune diseases (AID) by bridging genetics and environmental factors. Understanding these gene expression changes is key to explaining AID development.

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Area of Science:

  • Immunology
  • Genetics
  • Epigenetics

Background:

  • Genetic factors are known to influence autoimmune diseases (AID), but do not fully explain disease etiology.
  • Environmental factors, sex, and aging also play roles in AID pathogenesis.
  • Epigenetics, the study of gene expression changes without altering DNA sequence, offers a potential link between genetics and environment.

Purpose of the Study:

  • To review recent advancements in understanding the role of epigenetics in autoimmune disease pathogenesis.
  • To explore how epigenetic modifications interact with genetic predispositions and environmental factors in AID.

Main Methods:

  • Literature review of recent genetic and epigenetic research in autoimmune diseases.
  • Analysis of studies investigating the interplay between genetic elements, epigenetic modifications, and environmental triggers.

Main Results:

  • Epigenetic mechanisms are increasingly recognized as crucial in the initiation and perpetuation of autoimmune diseases.
  • Interactions between genetic factors and environmentally induced epigenetic changes are implicated in AID development.
  • Epigenetics provides a framework for understanding how environmental exposures can trigger autoimmunity in genetically susceptible individuals.

Conclusions:

  • Epigenetics is vital for a comprehensive understanding of autoimmune disease mechanisms.
  • Further research into epigenetic modifications can lead to novel diagnostic and therapeutic strategies for AID.
  • Bridging genetic and environmental influences through epigenetics is essential for unraveling AID complexity.