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Prognostic Significance of Immunohistochemical Expression of EGFR and C-erbB-2 Oncoprotein in Curatively Resected Gastric Cancer

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Author(s)
Hong Suk SongYoung Rok DoIn Ho KimSoo Sang SohnKun Young Kwon
Keimyung Author(s)
Kim, In HoSohn, Soo SangSong, Hong SukDo, Young RokKwon, Kun Young
Department
Dept. of Surgery (외과학)
Dept. of Internal Medicine (내과학)
Dept. of Pathology (병리학)
Journal Title
Cancer Research and Treatment
Issued Date
2004
Volume
36
Issue
4
Abstract
Purpose

The purpose of this study was to investigate the prognostic significance of the expression of EGFR and C-erbB-2 gene products by immunohistochemical analysis for curatively resected gastric adenocarcinoma.


Materials and Methods

Between January 1996 and December 2001, 739 patients with curatively resected gastric cancer patients underwent immunohistochemical staining for EGFR and C-erbB-2 proteins, and we retrospectively analyzed their correlation with the clinical outcome.


Results

The overexpressions of EGFR and C-erbB-2 were 25.4% and 26.2%, respectively. The overexpressions of EGFR was associated with the more poorly differentiated tumor (p=0.000) and with neuronal invasion (p=0.03). Overexpression of C-erbB-2 was associated with less vascular invasion (p=0.001). Tumor depth or node metastasis was not related to the overexpression of EGFR or C-erbB-2. The seven-year overall survival and relapse-free survival rates were 87.2% and 75.8%, respectively. Upon multivariate Cox regression analysis, the tumor stage, tumor size and patient age were important prognostic factors for overall survival, and tumor stage was the important factor for relapse-free survival. Overexpressions of EGFR or c-erbB-2 were not significant prognostic factors.


Conclusion

Immunohistochemical staining of EGFR and C-erbB-2 gene products were not independent prognostic factors for predicting the overall survival and the relapse-free survival in curatively resected gastric cancer.


Key words: Gastric cancer, Prognosis, Immunohistochemistry, EGFR, C-erbB-2
Keimyung Author(s)(Kor)
김인호
손수상
송홍석
도영록
권건영
Publisher
School of Medicine
Citation
Hong Suk Song et al. (2004). Prognostic Significance of Immunohistochemical Expression of EGFR and C-erbB-2 Oncoprotein in Curatively Resected Gastric Cancer. Cancer Research and Treatment, 36(4), 240–245. doi: 10.4143/crt.2004.36.4.240
Type
Article
ISSN
1598-2998
DOI
10.4143/crt.2004.36.4.240
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/35349
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
1. School of Medicine (의과대학) > Dept. of Pathology (병리학)
1. School of Medicine (의과대학) > Dept. of Surgery (외과학)
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