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Pemphigus & Pemphigoid
Super-Resolution Microscopy Reveals Altered Desmosomal Protein Organization in Tissue from Patients with Pemphigus Vulgaris
Pemphigus vulgaris (PV) is an autoimmune epidermal blistering disease in which autoantibodies (IgG) are directed against the desmosomal cadherin desmoglein 3. To better understand how PV IgG alters desmosome morphology and function in vivo, biopsies from patients with PV were analyzed by structured illumination microscopy, a form of superresolution fluorescence microscopy. In patient tissue, desmosomal proteins were aberrantly clustered and patient IgG colocalized with markers for lipid rafts and endosomes.
