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Complement-independent blistering mechanisms in bullous pemphigoid
Hiroaki Iwata1, Hideyuki Ujiie1
1Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Experimental Dermatology
|April 19, 2017
Summary
Bullous pemphigoid (BP) blistering involves complement activation, though non-complemental pathways are emerging. This review details the complex mechanisms, focusing on the role of complement in BP pathogenesis.
Area of Science:
- Dermatology
- Immunology
- Pathophysiology
Background:
- Bullous pemphigoid (BP) is an autoimmune blistering disease.
- It's characterized by skin blisters and autoantibodies against hemidesmosomal proteins.
- Complement activation was traditionally considered essential for blister formation.
Purpose of the Study:
- To review the complex blistering mechanisms in bullous pemphigoid.
- To highlight the specific role of complement activation in BP pathogenesis.
- To explore emerging evidence for non-complemental blistering mechanisms.
Main Methods:
- Literature review of bullous pemphigoid pathogenesis.
- Analysis of immunological and histological findings in BP.
- Focus on complement-mediated and non-complement-mediated blistering pathways.
Main Results:
- Bullous pemphigoid involves autoantibodies targeting hemidesmosomes.
- Complement activation is a key factor in BP blistering.
- Recent findings suggest alternative, non-complemental mechanisms may also contribute.
Conclusions:
- The pathogenesis of bullous pemphigoid blistering is intricate.
- Complement plays a significant role, but non-complemental pathways warrant further investigation.
- Understanding these mechanisms is crucial for developing targeted therapies.