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The bullae are formed by an immune reaction, initiated by the formation of IgG [citation needed] autoantibodies targeting dystonin, also called bullous pemphigoid antigen 1, [6] and/or type XVII collagen, also called bullous pemphigoid antigen 2, [7] which is a component of hemidesmosomes. A different form of dystonin is associated with ...
The several types of pemphigus (pemphigus vulgaris, pemphigus foliaceus, intraepidermal neutrophilic IgA dermatosis, and paraneoplastic pemphigus) vary in severity. Skin lesions caused by pemphigus can lead to fatal infections, so treatment is extremely important.
Pemphigus vulgaris is a rare chronic blistering skin disease and the most common form of pemphigus.Pemphigus was derived from the Greek word pemphix, meaning blister. [1] It is classified as a type II hypersensitivity reaction in which antibodies are formed against desmosomes, components of the skin that function to keep certain layers of skin bound to each other.
Pemphigoid is a group of rare autoimmune blistering diseases of the skin and mucous membranes.As its name indicates, pemphigoid is similar in general appearance to pemphigus, [1] however unlike pemphigus, pemphigoid does not feature acantholysis, a loss of connections between skin cells.
The number of target antigens varies on a case by case basis. The variability is likely what accounts for the different presentations of PNP. Through immunoprecipitation, target antigens have been found to include desmoglein-3, desmoglein-1, envoplakin, periplakin, desmoplakin 1, desmoplakin 2, and bullous pemphigoid antigen I. [citation needed]
Bullous pemphigoid. Bullous pemphigoid is an autoimmune bullous disease that mainly affects older individuals. Individuals typically present with itchy rashes that transform into fluid filled bullous lesions on the skin. Although these blisters usually appear on the arms, legs, and trunk of the body, they can also be found in the mouth as sores.
Gestational pemphigoid: IgG1: NC16A terminal of BPAG2 BPAG1: 180 230 Cicatricial pemphigoid: C-terminal of BPAG2: 180 Ocular cicatricial pemphigoid: Integrin beta-4 subunit: 200 Antiepiligrin cicatricial pemphigoid [nb 1] Laminin 5 (Epiligrin, Laminin 332) Linear IgA bullous dermatosis: LAD1 portion of BPAG2 Collagen type VII: 97 290/145 ...
Gastrointestinal pemphigoid: No consistent evidence of association with autoimmunity. Hypogammaglobulinemia: An immune system disorder but not autoimmune. Idiopathic giant-cell myocarditis: No consistent evidence of autoimmune cause though the disease has been found comorbid with other autoimmune diseases. [124] Idiopathic pulmonary fibrosis