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 Patholjournal_title
Human pathologyauthors
Brien TP,Odze RD,Sheehan CE,McKenna BJ,Ross JSdoi
10.1016/s0046-8177(00)80195-1subject
Has Abstractpub_date
2000-01-01 00:00:00pages
35-9issue
1eissn
0046-8177issn
1532-8392pii
S0046-8177(00)80195-1journal_volume
31pub_type
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