The aim of this study was to assess the relationship between p53 status and the clinical outcome of patients with advanced ovarian cancer treated with a paclitaxel-based regimen. PATIENTS AND METHODS: The investigation was conducted on 38 patients with FIGO stage III-IV ovarian cancer from whom tumor tissue samples for p53 protein immunostaining were obtained during initial cytoreductive surgery. All these patients subsequently received six cycles of first-line combination chemotherapy with paclitaxel 175 mg/m2 (3-hour infusion) plus carboplatin AUC 6 with or without epidoxorubicin 75 mg/m2. RESULTS: Positive p53 immunostaining was detected in tissue samples collected from 24 (63.2%) ovarian cancers. A clinical complete response was obtained in 14 (58.3%) of the 24 patients with positive p53 immunostaining compared to 9 (64.3%) of the 14 patients with negative p53 immunostaining (p = 0.717). A pathological complete response was found in 6 (25.0%) of the former compared to 4 (28.6%) of the latter (p = 0.956). Similarly, survival did not correlate with p53 status (p = 0.1271). DISCUSSION: p53 status seems to be neither a predictive nor a prognostic variable in patients with advanced ovarian cancer treated with a paclitaxel-based regimen. These results are consistent with experimental data showing that paclitaxel cytotoxicity in ovarian cancer is likely to be mediated by a p53-independent pathway.
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|Anno di pubblicazione:||2000|
|Titolo:||p53 status is neither a predictive nor a prognostic variable in patients with advanced ovarian cancer treated with a paclitaxel based regimen.|
|Autori:||A. Gadducci; C. Cianci; S. Cosio; F. Carnino; A. Fanucci; F. Buttitta; P.F. Conte; A.R. Gennazzani|
|Appare nelle tipologie:||Articolo su rivista|
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