期刊
CANCER LETTERS
卷 170, 期 2, 页码 183-189出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3835(01)00589-4
关键词
gastric carcinoma; immunohistochemistry; p21(WAF1/CIP1); p53; Ki-67 antigen; prognosis
类别
The expressions of p21(WAF1/CIP1), p53 proteins, and Ki-67 antigen were investigated immunohistochemic ally in 190 primary gastric carcinomas. Of the 190 tumors, 40.5% positively expressed p21(WAF1/CIP1) and 42.1% positively expressed p53. The expression of p21(WAF1/CIP1) was significantly associated with clinicopathological factors including gender, tumor size, status of lymph node, and clinicopathological stage (P < 0.05 for all), but p21(WAF1/CIP1) expression showed no clear correlation with Ki-67 labeling index. The mean Ki-67 labeling index was significantly higher in p53-positive cases than p53-negative, cases (P < 0.0001). However, among the clinicopathological factors examined, expression of p53 correlated only with age. Univariate and multivariate survival analyses revealed that clinicopathological stage (P < 0.001) and expression status of p21(WAF1/CIP1) (P < 0.05) were independent prognostic factors. Neither the expression status of p53 nor the Ki-67 labeling index, however, influenced the prognosis of patients with gastric cancer. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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