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HER-2/neu gene amplification by FISH predicts poor survival in Barrett's esophagus-associated adenocarcinoma.

Abstract：

:The HER-2/neu oncogene is localized to chromosome 17q and shares significant homology with the epidermal growth factor receptor. HER-2/neu protein overexpression has been associated with poor prognosis in a variety of tumors, but its significance in Barrett's esophagus-associated adenocarcinoma (BEAd) is unknown. Therefore, the aim of this study was to evaluate the prevalence and prognostic value of HER-2/neu gene amplification by fluorescence in situ hybridization (FISH) in 63 cases of BEAd. Routinely processed tissue sections from resection specimens of 63 patients with BEAd (M/F ratio, 10:1; mean age, 63 years) were assayed for HER-2/neu gene amplification by FISH using the Ventana unique sequence probe (Ventana Medical Systems, Inc, Tuscon, AZ). FISH results were correlated with the pathological features of the tumors and with patient survival. Clinical follow-up data were available for 54 patients (mean follow-up, 31 months [range, 1 to 152 months]). The HER-2/ neu gene was amplified in 12 of 63 (19%) cases. The presence of HER-2/neu gene amplification showed a trend toward a correlation with depth of tumor invasion (P = .07), lymph node metastasis (P = .13), and pathological stage (P = .14), but did not correlate with any of the other pathological features, such as degree of differentiation or tumor size. On both univariate and multivariate analysis, HER-2/neu gene amplification was associated with shortened survival (P = .03). HER-2/neu oncogene amplification, as determined by FISH, correlates with shortened patient survival and independently predicts poor outcome in patients with BEAd.

journal_name

Hum Pathol

journal_title

Human pathology

authors

Brien TP,Odze RD,Sheehan CE,McKenna BJ,Ross JS

doi

10.1016/s0046-8177(00)80195-1

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

35-9

issue

1

eissn

0046-8177

issn

1532-8392

pii

S0046-8177(00)80195-1

journal_volume

31

pub_type

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