Journal of Cancer Research and Clinical Oncology

, Volume 135, Issue 10, pp 1331–1339

Overexpression of Grb2/HER2 signaling in Chinese gastric cancer: their relationship with clinicopathological parameters and prognostic significance

Original Paper

DOI: 10.1007/s00432-009-0574-8

Cite this article as:
Yu, G.Z., Chen, Y. & Wang, J.J. J Cancer Res Clin Oncol (2009) 135: 1331. doi:10.1007/s00432-009-0574-8



Growth factor receptor-bound 2 (Grb2)-mediated HER2 signaling is thought to play a critical role in gastric cancer development, progression and metastasis. However, little is known about their expression in gastric cancer. In this study, we try to explore their relationship with clinicopathological parameters and prognostic significance in gastric cancer patients.

Materials and methods

We examined the expression of Grb2 and HER2 in normal gastric mucosa, primary gastric cancers, and lymph node metastases using immunohistochemical analysis of tissue microarrays containing specimens obtained from 1,143 patients with gastric cancer.


Grb2 was overexpressed in 48% (553/1,143) of primary tumors and 59% (155/262) of lymph node metastases. We observed significant differences in Grb2 expression between the primary tumors and the lymph node metastases (P < 0.01). Also, HER2 was overexpressed in 28% (321/1,143) of the primary tumors and 30% (79/262) of the lymph node metastases. Overexpression of Grb2 and Her2 was associated with age (>60 years), tumor location (cardia of stomach), adenocarcinoma, and high/moderate differentiation. A significant relationship was found between Grb2 and HER2 expression using Chi-Square Tests and Spearman Correlation. Overexpression of Grb2 correlated significantly with poor survival rates in both univariate and multivariate analysis.


Our data demonstrated a progressive amplification of Grb2 and HER2 expression in gastric carcinogenesis, suggesting the importance of Grb2 and HER2 as positive biomarkers for gastric cancer development and progression.


Gastric cancer Metastasis Tissue microarray Grb2 HER2 



Growth factor receptor-bound 2


Confidence interval


Lymph node

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Department of OncologyChangzheng HospitalShanghaiPeople’s Republic of China
  2. 2.Department of PathologyChanghai HospitalShanghaiPeople’s Republic of China

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