Pemphigus.

Area of Science:

• Dermatology
• Immunology
• Pathology

Background:

• Pemphigus encompasses autoimmune intraepidermal blistering diseases affecting skin and mucous membranes.
• Acantholysis, the breakdown of keratinocyte adhesion, is the hallmark histologic feature across all pemphigus variants.
• Pathogenesis involves IgG autoantibodies against keratinocyte surface antigens, with proposed mechanisms including plasminogen-plasmin system activation or complement fixation.

Purpose of the Study:

• To provide a comprehensive overview of pemphigus, including its definition, variants, key histologic features, and proposed pathogenic mechanisms.
• To discuss the historical and current treatment strategies and their impact on patient prognosis.

Main Methods:

• Review of existing literature on pemphigus pathophysiology and clinical management.
• Synthesis of information regarding the role of autoantibodies, acantholysis mechanisms, and therapeutic interventions.

Main Results:

• Pemphigus is characterized by intraepidermal blisters due to acantholysis, driven by autoantibodies.
• Proposed mechanisms for acantholysis include the plasminogen-plasmin system and complement activation.
• Glucocorticosteroids have dramatically improved the prognosis of pemphigus vulgaris, previously a fatal condition.

Conclusions:

• Pemphigus is a serious autoimmune blistering disease requiring effective treatment.
• Therapeutic advancements, particularly glucocorticosteroids, have transformed pemphigus outcomes.
• Immunosuppressive agents and plasmapheresis offer additional options for severe or refractory cases.