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  • Title: P53, bcl-2, and bax: their relationship and effect on prognosis in early stage epithelial ovarian carcinoma.
    Author: Skirnisdóttir I, Sorbe B, Seidal T.
    Journal: Int J Gynecol Cancer; 2001; 11(2):147-58. PubMed ID: 11328414.
    Abstract:
    The prognosis of ovarian carcinoma, even in the early stages (FIGO I-II), continues to present a challenge despite advances in the understanding of pathophysiology and treatment. In a series of 106 patients with epithelial carcinomas in FIGO stages IA-IIC, a number of prognostic factors (age, FIGO stage, histopathologic type, and tumor grade) were studied in relation to important regulators of apoptosis (p53, bcl-2, and bax). Immunohistochemical techniques were used. All the patients received adjuvant radiotherapy after the primary surgery. Univariate analysis showed that expression of p53 was highly significantly associated with tumor grade (P = 0.007) and survival status (P = 0.046). Positive bcl-2 staining was associated with serous (P = 0.0002) and endometrioid tumor subtypes, but not with the survival rate. A positive bax status was associated with younger age (P = 0.012) and a more favorable probability of survival. A significant association between the bcl-2 and bax status of the tumors and histopathologic subtypes and grades was noted. The most favorable subgroup of tumors was that with a combination of positive bax staining and negative p53 staining. In a multivariate Cox analysis, tumor grade (P = 0.0006) and bax status (P = 0.020) were independent and significant prognostic factors.
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