Publikationsdatenbank

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

Bandzählung: 23

Heftzählung: 1/3

Seiten: 143 – 156

ISSN: 1015-8987

Sprache

Englisch

Verweise

DOI: 10.1159/000204103

Pubmed: 19255509

Kontakt

Institut für Veterinär-Biochemie

Oertzenweg 19 b
14163 Berlin
+49 30 838 62225
biochemie@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.