A polymorphic variant of the gene coding desmoglein 1, the target autoantigen of pemphigus foliaceus, is associated with the disease |
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Authors: | Martel P Gilbert D Drouot L Prost C Raux G Delaporte E Joly P Tron F |
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Affiliation: | INSERM U519, Institut Fédératif de Recherche Multidisciplinaire sur les Peptides, Faculté de Médecine et H pital Charles Nicolle, Rouen, France. |
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Abstract: | Two polymorphic markers were identified on the desmoglein 1 gene which encodes the autoantigen targeted by pathogenic antibodies in pemphigus foliaceus (PF), a cutaneous autoimmune blistering disease. The first marker, made of a variant haplotype of five mis-sense mutations located on the part of the gene encoding the fourth and fifth extracellular domains of the protein, is not associated with the disease. The second marker consists of a single silent T to C transition at position 809 and was found to be significantly more frequent (P = 0.015) in Caucasian PF patients (n = 36) than in controls (n = 98). Thus, pemphigus foliaceus constitutes another example of autoimmune disease in which the autoantigen polymorphism contributes to disease susceptibility. |
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