Abstract：
:In order to examine the effects of the overexpression of c-erbB-2 (HER-2, neu) on human bronchial epithelial cells, a human c-erbB-2 expression vector was introduced into the simian virus 40 large T-antigen-immortalized human bronchial epithelial cell line BEAS-2B. Isolation of multiple clonal cell lines after selection revealed a wide range of expression of the gene product gp185erbB-2. While three of six clones tested expressed gp185erbB-2 at levels detectable by immunocytochemistry, only one, B2BE6, induced adenocarcinoma-like tumors in athymic nude mice. Both a nontumorigenic clone, B2BE2, and a tumorigenic clone, B2BE6, expressed comparable amounts of gp185erbB-2, which became phosphorylated on tyrosine in response to treatment with the c-erbB-2 ligands gp30 and p75. These data suggest that overexpression of c-erbB-2 in human bronchial epithelial cells can contribute to, but is not sufficient for, induction of tumorigenicity in this human model system.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Noguchi M,Murakami M,Bennett W,Lupu R,Hui F Jr,Harris CC,Gerwin BIsubject
Has Abstractpub_date
1993-05-01 00:00:00pages
2035-43issue
9eissn
0008-5472issn
1538-7445journal_volume
53pub_type
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