期刊
PATHOLOGY INTERNATIONAL
卷 62, 期 4, 页码 226-231出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1440-1827.2011.02778.x
关键词
epidermal growth factor receptor; FISH; gene copy number gain; immunohistochemistry; malignant mesothelioma
类别
An evaluation of epidermal growth factor receptor (EGFR) phenotypic expression in malignant pleural and peritoneal mesothelioma was undertaken, using immunohistochemical (IHC) and fluorescence in situ hybridization (FISH) analysis. Thirty-eight malignant mesothelioma (MM) specimens were subjected to IHC staining and FISH to evaluate the expression of EGFR protein and gene status. Overall positive IHC reaction was detected in 20/38 (53%) cases, in 11/22 (50%) pleural MM, and in 9/16 (56%) peritoneal MM. Our study confirmed that EGFR membranous expression is a common feature in MM, but not in benign mesothelial lesion. Thirty-seven cases did not show a gene copy number gain. Only one case showed a copy number gain. The protein overexpression of EGFR was not related to a gene copy number gain.
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