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Updated: May 25, 2026

Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
Apoptotic pathways in the pathogenesis of pemphigus: targets for new therapies
Roberta Lotti1, Alessandra Marconi, Carlo Pincelli
1Institute of Dermatology, School of Biosciences and Biotechnologies, University of Modena and Reggio Emilia, Via del Pozzo, 71 41100 Modena Italy.
Abstract:
Pemphigus is a group of rare autoimmune blistering diseases of the skin in which autoantibodies to desmosome cadherins, desmogleins, induce loss of cell-cell adhesion (acantholysis). In addition to steric hindrance and activation of intracellular phosphorylation cascade signaling pathways, apoptosis has been suggested to contribute to the mechanism by which pathogenic IgG induces acantholysis. We review the literature examining the role of apoptosis in pemphigus. Current data recognize a central role of apoptosis in the mechanisms of blister induction. In particular, here we stress the key role of FasL in pemphigus, as it is able to first induce apoptosis, then acantholysis. Being pro-apoptotic molecules important in blister formation, they could represent new specific targets for pemphigus treatment.
Insights
Pemphigus, an autoimmune skin disease, involves autoantibodies causing cell-cell adhesion loss. Apoptosis, programmed cell death, plays a key role in blister formation and may offer new treatment targets.
Area of Science:
- Immunodermatology
- Cell Biology
- Pathophysiology
Background:
- Pemphigus is a rare autoimmune blistering disease.
- Autoantibodies target desmogleins, leading to acantholysis (loss of cell-cell adhesion).
- Apoptosis is implicated in the mechanism of IgG-induced acantholysis.
Purpose of the Study:
- To review the literature on the role of apoptosis in pemphigus.
- To highlight the significance of apoptosis in blister induction.
- To identify potential therapeutic targets.
Main Methods:
- Literature review of studies on pemphigus and apoptosis.
- Analysis of the role of apoptotic pathways in disease pathogenesis.
Main Results:
- Apoptosis plays a central role in pemphigus blister formation.
- Fas ligand (FasL) is identified as a key mediator, inducing apoptosis followed by acantholysis.
- Pro-apoptotic molecules are crucial in blister development.
Conclusions:
- Apoptosis is integral to pemphigus pathogenesis.
- FasL is a critical factor in pemphigus blister induction.
- Pro-apoptotic molecules represent promising therapeutic targets for pemphigus treatment.
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