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Differential distribution of transforming growth factor beta and receptors in the hyper or hypoproliferative gastric mucosa of developing and adult rats

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dc.contributor.authorAlvares, E.P.es
dc.contributor.authorJordão, L.R.es
dc.contributor.authorGama, P.
dc.date.accessioned2012-05-21T12:08:37Z
dc.date.available2012-05-21T12:08:37Z
dc.date.issued2007
dc.description.abstractTransforming growth factor ß (TGFß) isoforms are known for their antiproliferative effect on epithelial cells in vitro, but the role of each isoform in vivo is poorly understood, mainly when non-pathological conditions are considered. We correlated the presence and distribution of isoforms and receptors to physiological changes in gastric cell proliferation in developing and adult rats. We used fasting to induce either the hyper (14-day-old pups) or hypoproliferation (60-day-old rats) of the gastric epithelium. In 14-d-old pups fasting reduced only TGFß3 labelling in the gland. Conversely, in 60-d-old rats there was an increase of TGFß1 and TGFß3 immunolabelled cells. Receptors were detected at both ages. Therefore, the changes induced by fasting in the constitutive TGFß expression can be correlated to the differential epithelial proliferation in the stomach of developing and adult rats. These results suggest that one of the functional roles of TGFß in vivo is to locally regulate cell proliferation.es
dc.formatapplication/pdfes
dc.format.extent7es
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/27543
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectGastric mucosaes
dc.subjectCell proliferationes
dc.subject.other576 - Biología celular y subcelular. Citologíaes
dc.titleDifferential distribution of transforming growth factor beta and receptors in the hyper or hypoproliferative gastric mucosa of developing and adult ratses
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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Histology and histopathology Vol.22, nº 2 (2007)