K. Kono et al., Serum level of HER-2/neu in patients with gastric cancer: Correlation withHER-2/neu overexpression in gastric carcinoma tissue, TUMOR BIOL, 21(3), 2000, pp. 139-144
Serum HER-2/neu (c-erbB-2) levels in patients with gastric cancer were eval
uated by an enzyme-linked immunosorbent assay and tissue levels of HER-2/ne
u in the same cohort were determined by immunohistochemistry. Nine (16%) of
57 gastric carcinomas had an overexpression of HER-2/neu detected immunohi
stochemically. Of these 9 patients, 6 had elevated serum HER-2/neu levels,
while 45 of 48 tissue samples with negative staining exhibited normal serum
HER-2/neu levels. These results indicated that overall accuracy, positive
predictive value, and negative predictive values of their serum measurement
s were 89, 67 and 94%, respectively. Serum levels of HER-2/neu were correla
ted with tissue overexpression of HER-2/neu in patients with gastric cancer
. Copyright (C) 2000 S. Karger AG, Basel.