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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/41885

    Título
    Detection of specific IgA antibodies against a novel deamidated 8-Mer gliadin peptide in blood plasma samples from celiac patients
    Autor
    Vallejo Diez, Sara
    Bernardo Ordiz, DavidAutoridad UVA Orcid
    Moreno, María de Lourdes
    Muñoz Suano, Alba
    Fernández Salazar, Luis IgnacioAutoridad UVA
    Calvo Romero, María Del CarmenAutoridad UVA
    Sousa, Carolina
    Garrote Adrados, José AntonioAutoridad UVA Orcid
    Cebolla, Ángel
    Arranz Sanz, EduardoAutoridad UVA Orcid
    Año del Documento
    2013
    Editorial
    Public Library of Science
    Descripción
    Producción Científica
    Documento Fuente
    Plos One, 2013, vol. 8, n. 11
    Zusammenfassung
    We studied whether celiac disease (CD) patients produce antibodies against a novel gliadin peptide specifically generated in the duodenum of CD patients by a previously described pattern of CD-specific duodenal proteases. Fingerprinting and ion-trap mass spectrometry of CD-specific duodenal gliadin-degrading protease pattern revealed a new 8-mer gliadin-derived peptide. An ELISA against synthetic deamidated 8-mer peptides (DGP 8-mer) was used to study the presence of IgA anti-DGP 8-mer antibodies in plasma samples from 81 children (31 active CD patients (aCD), 17 CD patients on a gluten-free diet (GFD), 10 healthy controls (C) and 23 patients with other gastrointestinal pathology (GP)) and 101 adults (16 aCD, 12 GFD, 27 C and 46 GP-patients). Deamidation of the 8-mer peptide significantly increased the reactivity of the IgA antibodies from CD patients against the peptide. Significant IgA anti-DGP 8-mer antibodies levels were detected in 93.5% of aCD-, 11.8% of GFD- and 4.3% of GP-patients in children. In adults, antibodies were detected in 81.3% of aCD-patients and 8.3% of GFD-patients while were absent in 100% of C- and GP-patients. Duodenal CD-specific gliadin degrading proteases release an 8-mer gliadin peptide that once deamidated is an antigen for specific IgA antibodies in CD patients which may provide a new accurate diagnostic tool in CD.
    Materias Unesco
    3205 Medicina Interna
    Palabras Clave
    Anticuerpos
    Enfermedad celíaca
    ISSN
    1932-6203
    Revisión por pares
    SI
    DOI
    10.1371/journal.pone.0080982
    Version del Editor
    https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0080982
    Propietario de los Derechos
    © Public Library of Science
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/41885
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • DEP55 - Artículos de revista [206]
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    Nombre:
    Detection-specific.PDF
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    Universidad de Valladolid

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