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- W1998117348 abstract "Objectives: Cyclooxygenase-2 (COX-2) and p53 represent molecules linked to oncogenesis of pancreatic cancer, and there is also a known regulatory loop between mouse double minute 2 (MDM2) and p53. The complex cross talks between p53 and COX-2 and scenarios explaining patterns of p53 and COX-2 expressions in precursor and cancer lesions have been recently reported. Methods: The expressions of COX-2, p53, and MDM2 were examined using immunohistochemistry in 85 resection specimens of pancreatic ductal adenocarcinoma. Results: The positive tumor expression rates of COX-2, p53, and MDM2 were 69.4%, 60.0%, and 41.2%, respectively. Significant correlations between COX-2 and p53 expressions and between p53 and MDM2 expressions were revealed. In the Kaplan-Meier analysis, no statistically significant correlations were found among the levels of COX-2, p53, and MDM2 expressions and survival rates. In the multivariate Cox proportional hazards regression model, grade and nodal status showed to be a valuable predictor of a worse overall survival. Conclusions: The reported findings confirmed the relationship of p53, MDM2, and COX-2 with the biological process of pancreatic cancer. The expression of none of the examined proteins showed to be a valuable independent prognostic factor. On the contrary, grade and nodal status showed to be a valuable predictor of a worse survival." @default.
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- W1998117348 date "2009-07-01" @default.
- W1998117348 modified "2023-09-25" @default.
- W1998117348 title "Clinicopathological Correlations of Cyclooxygenase-2, MDM2, and p53 Expressions in Surgically Resectable Pancreatic Invasive Ductal Adenocarcinoma" @default.
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- W1998117348 doi "https://doi.org/10.1097/mpa.0b013e31819fef8b" @default.
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