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  • Title: Prospective analysis of DNA ploidy, proliferative index and epidermal growth factor receptor as prognostic factors for pretreated uterine cancer.
    Author: Nagai N, Oshita T, Fujii T, Kioka H, Katsube Y, Ohama K.
    Journal: Oncol Rep; 2000; 7(3):551-9. PubMed ID: 10767367.
    Abstract:
    For the purpose of identifying prognostic factors for pretreated uterine cancer, DNA ploidy, proliferative index (P.I.) and epidermal growth factor receptor (EGFR) expression were analyzed in a large prospective series of 76 cervical cancer and 64 endometrial cancer patients observed for 5 years or more (median 76 months). The frequency of aneuploid cells was 62.0% (44/71) in cervical cancer and 16.7% (10/60) in endometrial cancer. There was no association between DNA ploidy and the clinicopathological findings without clinical stage, in which aneuploid cervical and endometrial cancers were significantly more common among advanced tumors (cervical: p<0. 05, endometrial: p<0.01). The P.I. was significantly higher in the patients with aneuploid tumors (cervical: p<0.05, endometrial p<0. 01). EGFR expression was detected in 56.6% (30/53) in cervical cancer and 59.6% (34/57) in endometrial cancer, and the mean EGFR level was 17.8+/-37.7 and 9.5+/-42.5 fmol/mg. protein, respectively. There was no correlation between EGFR expression and DNA ploidy, P.I. and clinicopathological findings analyzed. Five-year survival rate in patients with aneuploid tumors tended to have a worse outcome in cervical cancer cases (p=0.1003, log-rank test), and was significantly worse in endometrial cancer (p=0.0048, log-rank test). No significant relationship was noted between P.I., EGFR expression and 5-year survival. Cox multivariate analysis showed that DNA ploidy, P.I., and EGFR expression are not association with the risk of death. Our data showed neither DNA ploidy, P.I. nor EGFR expression were independent prognostic factors for pretreated uterine cancer.
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