Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2002-11-14
pubmed:abstractText
In recent years the demonstration that human pituitary adenomas are monoclonal provides further evidence of genomic mutations occurring in the progenitor cell that subsequently undergoes clonal expansion. Up to now the only mutations identified in a significant proportion of pituitary tumors, and particular in GH-secreting adenomas, occur in the Gsalpha gene and cause constitutive activation of the cAMP pathway. Subsequent studies revealed that these mutations are associated with several feedback mechanisms that, at least in part, counteract the oncogenic potential of mutant Gsalpha. As far as the promoting agents are concerned, several lines of evidence indicate that in pituitary tumors growth factors or their receptors may be overexpressed at variable levels. The contribution of these defects in human pituitary tumorigenesis remains to be established.
pubmed:language
eng
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:author
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
63-8
pubmed:dateRevised
2009-11-19
pubmed:articleTitle
Growth factors and human pituitary adenomas.
pubmed:affiliation
Institute of Endocrine Sciences, University of Milan, Ospedale Maggiore IRCCS, Via F. Sforza 35, 20122 Milan, Italy. anna.spada@unimi.it