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Related Experiment Videos

Autoimmunity to type VII collagen.

D T Woodley1, Y Sarret, R A Briggaman

  • 1Department of Dermatology, Stanford University School of Medicine, CA 94305.

Seminars in Dermatology
|September 1, 1991
PubMed
Summary
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Autoimmunity to type VII collagen targets the epidermolysis bullosa acquisita (EBA) antigen, linking EBA, bullous SLE, and linear IgA bullous diseases. Genetic predisposition, possibly via HLA-DR2, may underlie these autoimmune conditions.

Area of Science:

  • Immunodermatology
  • Autoimmune Blistering Diseases
  • Molecular Biology

Background:

  • Epidermolysis bullosa acquisita (EBA) is characterized by autoimmunity to type VII collagen.
  • Type VII collagen is a key component of anchoring fibrils in the basement membrane zone.
  • Autoimmunity to type VII collagen is implicated in EBA, bullous SLE, and some linear IgA bullous diseases.

Purpose of the Study:

  • To define the clinical spectrum of EBA and related disorders.
  • To investigate systemic disease associations with type VII collagen autoimmunity.
  • To explore potential genetic predispositions in EBA and bullous SLE.

Main Methods:

  • Review of clinical data and literature.
  • Immunological assays to identify autoantigens.

Related Experiment Videos

  • Genetic analysis, including HLA typing.

    • Main Results:

    • Type VII collagen is the EBA antigen.
    • Associated diseases include EBA, bullous SLE, and a subset of linear IgA bullous diseases.
    • A genetic predisposition, potentially linked to HLA-DR2, is observed in EBA and bullous SLE patients.

    Conclusions:

    • Autoimmunity to type VII collagen defines a specific group of blistering diseases.
    • Systemic associations beyond SLE are rare but noted.
    • Further research is needed to fully elucidate the clinical spectrum and genetic factors.