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Related Experiment Video

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A Rapid, Simple, and Standardized Homogenization Method to Prepare Antigen/Adjuvant Emulsions for Inducing Experimental Autoimmune Encephalomyelitis
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Alopecia areata: A multifactorial autoimmune condition.

Teontor Simakou1, John P Butcher2, Stuart Reid3

  • 1Institute of Biomedical and Environmental Health Research, School of Health and Life Sciences, University of the West of Scotland, 1 High Street, Paisley, PA1 2BE, UK.

Journal of Autoimmunity
|December 19, 2018
PubMed
Summary
This summary is machine-generated.

Alopecia areata is an autoimmune disease causing patchy hair loss due to immune attacks on hair follicles. This review explores genetic and environmental factors contributing to this condition and its underlying immune mechanisms.

Keywords:
Alopecia areataAutoreactive lymphocytesInfectionJAK inhibitorsOxidative stressPolygenic autoimmune disease

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Area of Science:

  • Immunodermatology
  • Autoimmune disorders
  • Hair follicle biology

Background:

  • Alopecia areata is an autoimmune condition causing non-scarring hair loss.
  • It can progress to alopecia totalis (scalp hair loss) or alopecia universalis (total body hair loss).
  • Psychological distress is common due to rapid hair loss and disfigurement.

Purpose of the Study:

  • To review genetic and environmental factors implicated in alopecia areata.
  • To describe the immune mechanisms driving hair loss in this condition.
  • To clarify the etiology and pathophysiology of alopecia areata.

Main Methods:

  • Literature review of genetic factors.
  • Analysis of environmental triggers.
  • Examination of immune system pathways involved in hair follicle destruction.

Main Results:

  • Immune cells, particularly lymphocytes, infiltrate hair follicles.
  • Interferon-gamma (IFN-γ) and IgG antibodies against hair follicle cells are implicated.
  • Alopecia areata often coexists with other autoimmune diseases and can be triggered by infections or inflammation.

Conclusions:

  • The precise etiology and pathophysiology of alopecia areata remain incompletely understood.
  • Genetic predisposition and environmental factors likely interact to trigger autoimmunity.
  • Understanding immune mechanisms is crucial for developing targeted therapies for alopecia areata.