Quantitative evaluation of HER-2/neu status in breast cancer by fluorescence in situ hybridization and by immunohistochemistry with image analysis

Details

Serval ID
serval:BIB_BC92FA6BF5AA
Type
Article: article from journal or magazin.
Collection
Publications
Title
Quantitative evaluation of HER-2/neu status in breast cancer by fluorescence in situ hybridization and by immunohistochemistry with image analysis
Journal
American Journal of Clinical Pathology
Author(s)
Lehr HA, Jacobs TW, Barnes M, Schnitt SJ, Gown AM
ISSN
0002-9173
Publication state
Published
Issued date
2001
Peer-reviewed
Oui
Volume
115
Number
6
Pages
814-822
Language
english
Abstract
We correlated quantitative results obtained in 40 invasive breast cancer cases for HER-2 gene amplification by fluorescence in situ hybridization with protein expression by immunohistochemical studies with computer-assisted image analysis. Fluorescence in situ hybridization (FISH) results were quantified as the mean number of fluorescent signals per nucleus, and immunohistochemical slides were read by semiquantitatively assessing membranous immunostaining intensity in tumor cells vs nonneoplastic breast tissue or quantitatively evaluated by image analysis. We found high correlation between immunohistochemical results by semiquantitative scoring and by image analysis. FISH results correlated with immunohistochemical I results moderately,when the staining intensity of only tumor cells was assessed and significantly better when the difference in staining intensity between tumor cells and nonneoplastic breast tissue was assessed The correlation with FISH results M was further improved when immunohistochemical study was combined,vith heat-induced epitope retrieval (HIER). Although FISH and immunohistochemical studies assess different aspects of the HER-2/neu gene (amplification I-is overexpression), we found good correlation between the diagnostic techniques. The correlation was best when immunohistochemical studies were combined with HIER and assessed as the difference between tumor cells and nonneoplastic breast tissue.
Keywords
breast cancer, prognosis, amplification, expression, photoshop, C-ERBB-2 EXPRESSION, GENE AMPLIFICATION, ADJUVANT THERAPY, PROGNOSTIC-SIGNIFICANCE, ERBB2 AMPLIFICATION, HER2/NEU ONCOGENE, OVARIAN-CANCER, NEU ONCOGENE, OVEREXPRESSION, CHEMOTHERAPY
Web of science
Create date
15/12/2011 20:58
Last modification date
20/08/2019 15:30
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