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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

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
The immune system...
Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

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.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.

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Related Experiment Video

Updated: May 30, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

[Common genetic factors in autoimmunity].

Blanca Rueda1, Gisela Orozco, Elena Sánchez

  • 1Instituto de Parasitología y Biomedicina López-Neyra. CSIC. Granada. España.

Reumatologia Clinica
|July 29, 2011
PubMed
Summary

Common genetic factors contribute to autoimmune diseases (AIDs) like rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). Identifying these shared genetic markers, such as the PTPN22 gene, enhances understanding of disease causes and potential treatments.

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Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity
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Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity

Published on: April 11, 2019

Related Experiment Videos

Last Updated: May 30, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity
11:12

Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity

Published on: April 11, 2019

Area of Science:

  • Immunology
  • Genetics
  • Rheumatology

Context:

  • Autoimmune diseases (AIDs) arise from complex genetic and environmental interactions causing immune system dysregulation.
  • Evidence suggests shared genetic underpinnings across various AIDs, including rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).

Purpose:

  • To highlight the significance of identifying common genetic factors in autoimmunity.
  • To explore the role of specific genes, like PTPN22, in autoimmune disease susceptibility.
  • To underscore advancements in understanding shared genetic elements of AIDs.

Summary:

  • The PTPN22 gene, a key regulator of T cell responses, is a significant genetic marker associated with multiple AIDs.
  • Genes influencing cytokine balance, such as MIF and IRF5, are also identified as predisposing factors for AIDs.
  • Research increasingly points to shared genetic factors as crucial in the pathogenesis of diverse autoimmune disorders.

Impact:

  • Facilitates a deeper comprehension of autoimmune disease pathogenesis.
  • Aids in the development of novel molecular diagnostic tools for AIDs.
  • Opens avenues for identifying new therapeutic targets for autoimmune conditions.