Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2000-5-11
pubmed:abstractText
In previous study of melanocyte-stimulating hormone (MSH) cell development in the proliferating pars intermedia, which is in close apposition to the presumptive pars nervosa, no direct cell-to-cell contact was found between the boundary neurohypophyseal pituicytes (PIC), adenohypophyseal precursor stem cells (PSC) and the related diencephalic mesenchymal cells. Here, we have used immunohistochemistry to examine cytokine expression in the development of the hypophysis during foetal stages II-IV. Light and confocal laser scanning microscopy indicated diffuse expression of both TGF alpha and EGF in the hypophysis at different foetal stages. While no findings indicative for temporary changes of TGF alpha and EGF patterns were found in the foetal hypophysis, a temporary increment of EGF molecules was distinct in the diencephalic mesenchyme at stages III and IV. On the other hand, light microscopy intensively immuno-localized EGFR in the adenohypophysis and neurohypophysis at different developmental stages. Immunoreactivity of EGFR in the cytoplasm and nucleus suggested active proliferative events in the PIC and PSC of stages II-IV mouse pituitaries.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0030-154X
pubmed:author
pubmed:issnType
Print
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
291-301
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Immunohistochemical localisation of epidermal growth factor, transforming growth factor alpha and EGF receptor during organogenesis of the murine hypophysis in vivo.
pubmed:affiliation
Department of Oral Anatomy, Osaka Dental University, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't