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    Intestinal expression of TFF and related genes during postnatal development in a piglet probiotic trial (2009)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Scholven, Jutta
    Taras, David
    Sharbati, Soroush
    Schön, Jennifer
    Gabler, Christoph
    Huber, Otmar
    Meyer zum Büschenfelde, Dirk
    Blin, Nikolaus
    Einspanier, Ralf
    Quelle
    Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology; 23(1/3) — S. 143–156
    ISSN: 1015-8987
    Sprache
    Englisch
    Verweise
    DOI: 10.1159/000204103
    Pubmed: 19255509
    Kontakt
    Institut für Tierernährung

    Königin-Luise-Str. 49
    Gebäude 8
    14195 Berlin
    +49 30 838 52256
    tierernaehrung@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    Trefoil factor family (TFF) peptides provide protective and reparative effects by enhancing epithelial integrity and promoting mucosal restitution. TFF peptide expression is induced after mucosal damage. These processes are of central physiological relevance during the postnatal intestinal development and are strongly influenced during the weaning period. In piglets, weaning at early maturation stages frequently causes mucosal inflammation. The aim of this study was to evaluate postnatal intestinal TFF expression in a piglet probiotic trial. Low intestinal TFF2 expression was measured at early maturation stages. Weaning, however, was associated with a distinct response of increased TFF2 expression, indicating an important role in enhancing mucosal integrity. In the distal jejunum and ileum weaning could as well be associated with increased TFF3 mRNA levels. Differential TFF1 expression was not detected. Furthermore, TFF2 localization studies in different intestinal loci were performed by means of immunohistochemistry. Expression of selected genes (TGFA, EGFR, Cox-2) known to promote TFF signaling showed differential expression pattern as well, thereby providing further functional background. Furthermore, the expression patterns of EGFR observed in this study contribute to an advanced view of previous findings of EGFR regulation mainly obtained in rodents. An upregulated EGFR expression during early postnatal development suggests a local relevance to porcine intestinal maturation. However, a feed supplementation with the probiotic strain Enterococcus faecium did not influence TFF expression.