Epidermolysis bullosa acquisita (EBA) is a prototypic organ-specific autoimmune disease induced by autoantibodies to type VII collagen causing mucocutaneous blisters. In the inflammatory (bullous pemphigoid-like) EBA variant, autoantibody binding is followed by a lesional inflammatory cell infiltration, and the overall clinical picture may be indistinguishable from that of bullous pemphigoid, the latter being the most common autoimmune bullous disease. The last decade witnessed the development of several mouse models of inflammatory EBA that facilitated the elucidation of the pathogenesis of autoantibody-induced, cell-mediated subepidermal blistering diseases and identified new therapeutic targets for these and possibly other autoantibody-driven disorders.
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