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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2007-7-20
pubmed:abstractText
Activation of intracellular mitogenic signal transduction pathways driven by the ErbB family of receptor tyrosine kinases has been implicated in the development and/or progression of a variety of cancers. Studies on ErbB receptors in osteosarcoma have focused on HER-2 and have produced conflicting results with few studies evaluating the expression of the epidermal growth factor receptor (EGFR). In this study, we determined the level of expression of EGFR and the mutational status of the EGFR receptor in a subset of osteosarcoma tumor samples as well as in a series of established bone tumor-derived cell lines. EGFR protein expression was detected in the form of strong membranous staining by immunohistochemistry in 21 (57%) of 37 cases analyzed. Six of 12 (50%) osteosarcoma cell lines revealed moderate to high expression levels of EGFR. Two somatic alterations (E829E and R831C) were identified in the cytoplasmic domain of the EGFR gene in 1 of 10 tumor samples. The significance of these findings for the pathobiology of osteosarcomas will be investigated further.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0046-8177
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1184-91
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Epidermal growth factor receptor in osteosarcoma: expression and mutational analysis.
pubmed:affiliation
Department of Pathology, New York University School of Medicine, New York, NY 10016, USA.
pubmed:publicationType
Journal Article