Clinical significance of p21WAF1/CIP1 and p53 expression in serous cystadenocarcinoma of the ovary

  • Authors:
    • Fumitoshi Terauchi
    • Aikou Okamoto
    • Takeo Nagashima
    • Yukari Kobayashi
    • Tetsuya Moritake
    • Yasuhiro Yamamoto
    • Satoshi Takakura
    • Satoko Iwaki
    • Hisao Ogura
  • View Affiliations

  • Published online on: August 1, 2005     https://doi.org/10.3892/or.14.2.363
  • Pages: 363-368
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Abstract

There have been many reports indicating that the down-regulation of p21WAF1/CIP1 is related to carcinogenesis and the development of various tumors; nevertheless, its association with epithelial ovarian cancer (EOC) remains controversial. In this study, we focused on serous ovarian cancer, which is the most prevalent histological type, and performed immunohistochemical analysis to examine the expression of p21WAF1/CIP1 and p53 in 43 cases of serous-type EOC sourced from a single University Hospital: 14 stage I, 4 stage II, 21 stage III, and 4 stage IV. Positive p21WAF1/CIP1 was found in 24 of 43 cases (56%), and positive p53 was detected in 21 of 43 cases (49%). Among stage III/IV cases, positive p21WAF1/CIP1 staining was found in 11 of 25 cases (44%), and positive p53 staining was detected in 13 of 25 cases (52%). Univariate survival analysis for the entire cohort revealed that positive p21WAF1/CIP1 was associated with a survival benefit. The 10-year survival rates of p21WAF1/CIP1-positive staining and p21WAF1/CIP1-negative staining were 82.4 and 39.5%, respectively, and there was a significant difference between the two groups (p<0.01). Overall survival for p21WAF1/CIP1-positive with p53-negative staining [p21(+)/p53(-)] was significantly different from p21WAF1/CIP1-positive with p53-positive [p21(+)/p53(+)], p21WAF1/CIP1-negative with p53-positive staining [p21(-)/p53(+)], and p21WAF1/CIP1-negative with p53-negative staining [p21(-)/p53(-)] (p<0.05). When only III/IV cases were evaluated, overall survival for [p21(+)/p53(-)] was significantly different from [p21(+)/p53(+)], [p21(-)/p53(+)], and [p21(-)/p53(-)] (p<0.05). These results suggested that the overexpression of p21WAF1/CIP1 in conjunction with the loss of p53 expression was a stronger predictor of survival benefit than either molecule alone in Japanese serous-type advanced ovarian cancers with more than 10-year follow-up.

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August 2005
Volume 14 Issue 2

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Terauchi F, Okamoto A, Nagashima T, Kobayashi Y, Moritake T, Yamamoto Y, Takakura S, Iwaki S and Ogura H: Clinical significance of p21WAF1/CIP1 and p53 expression in serous cystadenocarcinoma of the ovary. Oncol Rep 14: 363-368, 2005
APA
Terauchi, F., Okamoto, A., Nagashima, T., Kobayashi, Y., Moritake, T., Yamamoto, Y. ... Ogura, H. (2005). Clinical significance of p21WAF1/CIP1 and p53 expression in serous cystadenocarcinoma of the ovary. Oncology Reports, 14, 363-368. https://doi.org/10.3892/or.14.2.363
MLA
Terauchi, F., Okamoto, A., Nagashima, T., Kobayashi, Y., Moritake, T., Yamamoto, Y., Takakura, S., Iwaki, S., Ogura, H."Clinical significance of p21WAF1/CIP1 and p53 expression in serous cystadenocarcinoma of the ovary". Oncology Reports 14.2 (2005): 363-368.
Chicago
Terauchi, F., Okamoto, A., Nagashima, T., Kobayashi, Y., Moritake, T., Yamamoto, Y., Takakura, S., Iwaki, S., Ogura, H."Clinical significance of p21WAF1/CIP1 and p53 expression in serous cystadenocarcinoma of the ovary". Oncology Reports 14, no. 2 (2005): 363-368. https://doi.org/10.3892/or.14.2.363