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

Détails

ID Serval
serval:BIB_BC92FA6BF5AA
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Quantitative evaluation of HER-2/neu status in breast cancer by fluorescence in situ hybridization and by immunohistochemistry with image analysis
Périodique
American Journal of Clinical Pathology
Auteur⸱e⸱s
Lehr HA, Jacobs TW, Barnes M, Schnitt SJ, Gown AM
ISSN
0002-9173
Statut éditorial
Publié
Date de publication
2001
Peer-reviewed
Oui
Volume
115
Numéro
6
Pages
814-822
Langue
anglais
Résumé
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.
Mots-clé
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
Création de la notice
15/12/2011 21:58
Dernière modification de la notice
20/08/2019 16:30
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