Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1993-1-8
pubmed:databankReference
pubmed:abstractText
The receptor for Hepatocyte Growth Factor is a transmembrane tyrosine kinase encoded by the c-MET oncogene. We have previously shown that the Met protein is expressed in several human epithelial tissues. The receptor is barely detectable, however, in normal thyroids and in specimens from patients affected by non-neoplastic thyroid diseases. Now we report that the expression of the Met/HGF receptor is increased a hundred fold in 22 out of 41 human carcinomas derived from the thyroid follicular epithelium. A comprehensive analysis of 15 cases showed that the overexpressing carcinomas belong to histotype variants correlated with negative prognosis and in all but one case there were evidences of locally advanced disease and/or distant metastases. The 11 benign adenomas and the 5 medullary carcinomas tested were negative. Western blot analysis with monoclonal antibodies directed against either the intracellular or the extracellular receptor domains failed to reveal major structural alterations. Southern blot analysis also demonstrated that the c-MET gene was not amplified nor rearranged. These data suggest a role for the overexpression of c-MET oncogene in the pathogenesis and progression of thyroid tumors derived from the follicular epithelium.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0950-9232
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
N
pubmed:pagination
2549-53
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:1334253-Adolescent, pubmed-meshheading:1334253-Adult, pubmed-meshheading:1334253-Aged, pubmed-meshheading:1334253-Amino Acid Sequence, pubmed-meshheading:1334253-Female, pubmed-meshheading:1334253-Gene Expression, pubmed-meshheading:1334253-Gene Rearrangement, pubmed-meshheading:1334253-Hepatocyte Growth Factor, pubmed-meshheading:1334253-Humans, pubmed-meshheading:1334253-Male, pubmed-meshheading:1334253-Middle Aged, pubmed-meshheading:1334253-Molecular Sequence Data, pubmed-meshheading:1334253-Oncogenes, pubmed-meshheading:1334253-Protein-Tyrosine Kinases, pubmed-meshheading:1334253-Proto-Oncogene Proteins, pubmed-meshheading:1334253-Proto-Oncogene Proteins c-met, pubmed-meshheading:1334253-Proto-Oncogenes, pubmed-meshheading:1334253-Receptors, Cell Surface, pubmed-meshheading:1334253-Thyroid Gland, pubmed-meshheading:1334253-Thyroid Neoplasms
pubmed:year
1992
pubmed:articleTitle
Overexpression of the c-MET/HGF receptor gene in human thyroid carcinomas.
pubmed:affiliation
Department of Biomedical Science and Oncology, University of Torino Medical School, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't