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DIGITAL.CSIC
Conference object . 2020 . Peer-reviewed
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Conference object . 2021
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Intestinal proteolisis of gluten peptides. In vitro effects in cellular models

Authors: Arranz, Eduardo;

Intestinal proteolisis of gluten peptides. In vitro effects in cellular models

Abstract

En el intestino de los pacientes celiacos se ha identificado un nuevo péptido de 8 aminoácidos derivado de la digestión de prolaminas tóxicas para estos pacientes (principalmente trigo, cebada y centeno). Secuencias homólogas a este péptido se encuentran en prolaminas y gluteninas de cereales (especialmente en ¿-gliadinas y ¿-secalinas). La formación del péptido 8mer in vivo y la capacidad inmunogénica del mismo sobre el sistema inmunitario, ha sido confirmada por la detección de niveles de anticuerpos específicos de IgA anti-péptido 8 mer en muestras de suero y otros fluidos biológicos, de pacientes celiacos. Se ha observado que la forma desaminada de dicho péptido 8mer tiene efectos inmunogénicos sobre un modelo in vitro de células dendríticas, que muestran un aumento de la expresión de marcadores de maduración y un perfil de producción de citocinas característico. En cultivo mixto de células autólogas, la activación previa de las células dendríticas con el péptido 8mer desaminado induce la proliferación de linfocitos T productores de IFN¿, tanto en pacientes celiacos como en no celiacos.

Resumen del trabajo presentado al ESPGHAN MasterClass on Coeliac Disease, celebrado en Valencia (España) del 8 al 10 de marzo de 2018.

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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