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Morphological restoration of gonadotrope population by thymulin gene therapy in nude mice

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dc.contributor.authorReggiani, Paulaes
dc.contributor.authorMartines, Elianaes
dc.contributor.authorFerese, Celia
dc.contributor.authorGoya, Rodolfo
dc.contributor.authorCónsole, Gloria
dc.date.accessioned2013-09-24T11:36:21Z
dc.date.available2013-09-24T11:36:21Z
dc.date.issued2009
dc.description.abstractThe integrity of the thymus during the first week of life is necessary for a proper maturation of the pituitary-gonadal axis as revealed by the significantly reduced levels of circulating gonadotropins in congenitally athymic (nude) mice. In the present work we studied the impact of athymia and the effect of neonatal thymulin gene therapy on the pituitaries of adult nude mice. Also circulating thymulin and gonadotropin levels were evaluated. We used an adenoviral vector expressing a synthetic gene for the thymic peptide thymulin (metFTS) termed RAd-FTS. On postnatal day 1, each experimental heterozygous (nu/+) and homozygous (nu/nu) pup of both sexes received a single bilateral i.m. injection of RAd-FTS or RAd-GFP/TK, a control vector expressing green fluorescent protein. On postnatal days 51-52, mice were bled and sacrificed, their pituitaries were immediately dissected, fixed and immunostained. Morphometry was performed by means of an image analysis system. The following parameters were calculated: volume density (VD: cell area/reference area), cell density (CD: number of cells/reference area), and cell size (expressed in μm2). Serum thymulin levels were measured by a bioassay and gonadotropin levels were assayed by RIA. It was observed that neonatal thymulin gene therapy in the athymic mice restored their serum thymulin levels and prevented the reduction in circulating gonadotropin levels. The histometrical analysis revealed that the treatment prevented the reduction in gonadotrope CD and the VD in athymic mice. Our data suggest that thymulin gene therapy may be an effective strategy to approach reproductive deficits associated with endocrine thymus dysfunction.es
dc.formatapplication/pdfes
dc.format.extent7es
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/36033
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectPituitary glandes
dc.subjectMicees
dc.subject.other61 - Medicinaes
dc.titleMorphological restoration of gonadotrope population by thymulin gene therapy in nude micees
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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Histology and histopathology Vol.24, nº6 (2009)