Prognostic value of cyclin E and p53 expression in gastric carcinoma.

作者信息

Sakaguchi T, Watanabe A, Sawada H, Yamada Y, Yamashita J, Matsuda M, Nakajima M, Miwa T, Hirao T, Nakano H

机构信息

First Department of Surgery, Nara Medical University, Kashihara-city, Japan.

出版信息

Cancer. 1998 Apr 1;82(7):1238-43. doi: 10.1002/(sici)1097-0142(19980401)82:7<1238::aid-cncr5>3.0.co;2-b.

BACKGROUND

Cyclins and wild-type p53 are prime cell cycle regulators and may be involved in tumorigenesis. Cyclin E is a late G1 cyclin and its abnormalities have been reported in several cancers. The authors investigated the correlation between cyclin E expression and progression of gastric carcinoma.

METHODS

The expression of cyclin E and p53 proteins was investigated retrospectively in 116 patients with gastric carcinoma. Immunohistochemical staining of the paraffin sections was performed using monoclonal antibodies to cyclin E and p53.

RESULTS

The total cyclin E positive rate was 44.0% (51 of 116) of all cases, 26 of which were strongly positive. Strong cyclin E expression frequently was observed in deeply invasive tumors, tumors with lymph node metastasis, and tumors of advanced stage. The incidence of p53 expression was higher in the cyclin E positive tumors than in the other tumors. With regard to prognosis, patients whose tumors had both strong positivity for cyclin E and positivity for p53 had significantly poorer prognosis. In multivariate analysis, the combined variable of cyclin E and p53 was an independent prognostic indicator together with serosal invasion and tumor size.

CONCLUSIONS

These data suggest the cyclin E expression correlates with p53 expression and may contribute to the progression of gastric carcinoma. The combined variable of cyclin E and p53 expression could be a useful prognostic indicator in patients with gastric carcinoma.