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DIGITAL.CSIC
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Estudios preliminares sobre la caracterización de antígenos de Dicrocoelium dendriticum

Authors: Revilla-Nuín, Beatriz; Manga-González, M. Yolanda; Rodríguez Aparicio, L.; Pozo Carnero, María Paz del; González Lanza, Camino;

Estudios preliminares sobre la caracterización de antígenos de Dicrocoelium dendriticum

Abstract

La dicroceliosis, causada por el trematodo hepático Dicrocoelium dendriticum, es una parasitosis económica y sanitariamente importante en la cría y explotación de rumiantes. Los estudios sobre diagnóstico inmunológico, caracterización antigénica y desarrollo de inmunógenos frente a dicho parásito son escasos en todo el mundo. Por ello, el objetivo del trabájo fue caracterizar y purificar antígenos específicos de D.dendriticum, que pudieran utilizarse para diagnóstico y para inducir inmunidad protectora. El antígeno somático se extrajo, de vermes recolectados de hígado de ovejas sacrificadas en matadero, por hornogenización y precipitación fraccionada con sulfato amónico. El antígeno de excreción-secreción se obtuvo por cultivo de ejemplares en medio RPMI. Ambos fueron parcialmente purificados por cromatografía en gel filtración (Sephacryl S-300) e intercambio iónico (DEAE-Sepharose). Las fracciones se analizaron por SDS-PAGE y la evaluación de su especificidad se realizó por Western Blot utilizando sueros homológos y heterólogos de ovinos infectados con especies de trematodos afines y de nematodos. Los resultados obtenidos mostraron numerosas bandas inmunoreactivas (10-18), principalmente en la zona de pesos moleculares medios y altos (28,9-249,7 kDa), aunque sólo un polipéptido de aproximadamente 130 kDa presentó gran especificidad inmunogénica y, quizá, pueda proteger frente a la dicroceliosis.

1 página.-- Poster presentado al XXVI Congreso de la Sociedad Española de Bioquímica y Biología Molecular (A Coruña, España, 15-18 septiembre, 2003)

Estudio financiado por CICYT, Proyecto AGL2001-1290

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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.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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