Wang L, Yu YH, Liu W, Wang L, Ouyang XN, Xiong XS. Significance of expression of epidermal growth factor receptor in colorectal cancer.
Shijie Huaren Xiaohua Zazhi 2011;
19:1483-1488. [DOI:
10.11569/wcjd.v19.i14.1483]
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Abstract
AIM: To detect the expression of epidermal growth factor receptor (EGFR) in colorectal cancer and to evaluate its relationship with clinicopathological parameters and prognosis in patients with colorectal cancer.
METHODS: A total of 1 228 specimens were collected from patients with colorectal cancer who were treated at Fuzhou General Hospital of Nanjing Military Command of Chinese PLA from January 2004 to April 2010. Immunohistochemistry was used to detect the expression of EGFR in 1 100 specimens taken from patients who had complete clinical data. Univariate and multivariate analyses were used to study the relationship of EGFR expression with clinicopathological parameters and prognosis in patients with colorectal cancer.
RESULTS: The positive rate of EGFR expression was 24.55% (270/1 100). Males had a significantly higher positive rate of EGFR expression than females (27.04% vs 19.01%, P = 0.015). Patients with stages III and IV colorectal cancer had a significantly higher positive rate of EGFR expression than other patients (40.74% vs 30.58%, P < 0. 001). The positive rate of EGFR expression was significantly higher in patients with lymph node or distant metastasis than in those without metastasis (32.10% vs 19.09%, P < 0.0001). EGFR expression was not significantly correlated with age, tumor location, invasion depth, differentiation, or overall survival.
CONCLUSION: Detection of EGFR protein expression can be used to evaluate the malignant behavior and prognosis of colorectal cancer.
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