Pemphigus vulgaris autoantibodies induce apoptosis in HaCaT keratinocytes

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Pemphigus vulgaris autoantibodies induce apoptosis

Pemphigus vulgaris (PV) is an autoimmune disease characterized by binding of IgG autoantibodies to epidermal keratinocyte desmosomes. IgG autoantibodies obtained from a patient with mucocutaneous PV reacted with plakoglobin (Plkg) in addition to desmoglein-3 (Dsg3) and Dsg1. Immunofluorescence analysis confirmed that IgG autoantibodies, unlike antibodies from a healthy volunteer, caused disrupt...

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Mechanisms of mitochondrial damage in keratinocytes by pemphigus vulgaris antibodies.

The development of nonhormonal treatment of pemphigus vulgaris (PV) has been hampered by a lack of clear understanding of the mechanisms leading to keratinocyte (KC) detachment and death in pemphigus. In this study, we sought to identify changes in the vital mitochondrial functions in KCs treated with the sera from PV patients and healthy donors. PV sera significantly increased proton leakage f...

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Autoantibodies other than Anti-desmogleins in Pemphigus Vulgaris Patients

BACKGROUND Pemphigus vulgaris (PV) is an immunoglobulin G-mediated autoimmune bullous skin disease. Nonorgan-specific antibodies were detected in Tunisian and Brazilian pemphigus patients with different prevalence. MATERIALS AND METHODS Fifty PV patients and fifty controls were screened for antinuclear antibodies (ANAs), anti-smooth muscle antibodies (ASMAs), anti-parietal antibodies (APAs), ...

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Distinction between epidermal antigens binding pemphigus vulgaris and pemphigus foliaceus autoantibodies.

Pemphigus vulgaris (PV) and pemphigus foliaceus (PF) are autoimmune blistering diseases in which antibodies develop to the cell surface of epidermal cells. In this study we sought to determine the antigenic specificity of antibodies in the sera of patients with PV and PF. Sera from 12 patients with PV were used to immunoprecipitate extracts of cultured human epidermal cells that were radiolabel...

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Detection of apoptosis in pemphigus vulgaris by TUNEL technique*

BACKGROUND Pemphigus is part of a group of blistering diseases that affect the skin and mucous membranes. Based on its autoimmune origin, autoantibodies develop in pemphigus that are directed toward cell surface components of keratinocytes. However, some data cannot be explained, such as the lack of a relationship between autoantibody levels and the severity of clinical manifestations, treatmen...

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ژورنال

عنوان ژورنال: FEBS Letters

سال: 2004

ISSN: 0014-5793

DOI: 10.1016/s0014-5793(04)00409-0