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Prognostic role of angiogenesis and its correlations with thymidine phosphorylase and p53 expression in ductal adenocarcinoma of the pancreas.

Authors: Ma, Jinfeng; Wataru, Kimura; Fumiaki, Sakurai; Toshiyuki, Moriya; Masaomi, Mizutani; Ichiro, Hirai;

Prognostic role of angiogenesis and its correlations with thymidine phosphorylase and p53 expression in ductal adenocarcinoma of the pancreas.

Abstract

Currently, little information is available regarding the prognostic role of angiogenesis and its correlation with Thymidine phosphorylase (dThdPase) in ductal adenocarcinoma of the pancreas. In the present study, we aimed to evaluate whether tumor angiogenesis, dThdPase expression correlates with prognosis in patients after radical surgical treatment for ductal adenocarcinoma of the pancreas and to investigate the correlation between tumor angiogenesis and dThdPase expression. Furthermore, the role of p53 expression in tumor neovascularization was also examined in this study.Tissue samples were taken from 32 patients with ductal adenocarcinoma of the pancreas after radical surgical treatment. Intratumoral microvessel density (IMVD) and dThdPase, p53 expression were examined immunohistochemically.Increased IMVD significantly correlated with the tumor size, lymph node metastasis and advanced TNM stage (p < 0.05, respectively). Furthermore, increased IMVD correlated withpoorer survival curve (p < 0.05). A significant correlation was present between IMVD and dThdPase expression (p < 0.001), while dThdPase expression did not correlate with prognosis. p53 expression correlated with prognosis, whereas no significant correlation was shown between p53 expression and IMVD in ductal adenocarcinoma of the pancreas.Tumor angiogenesis is associated with clinicopathological factors regarding tumor progression and may be an important prognostic factor in ductal adenocarcinoma of the pancreas. dThdPase plays an important role in tumor angiogenesis in ductal adenocarcinoma of the pancreas. Mutant p53 expression may not involve in tumor angiogenesis in ductal adenocarcinoma of the pancreas.

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Keywords

Adult, Aged, 80 and over, Male, Thymidine Phosphorylase, Neovascularization, Pathologic, Adenocarcinoma, Middle Aged, Prognosis, Gene Expression Regulation, Neoplastic, Pancreatic Neoplasms, Platelet Endothelial Cell Adhesion Molecule-1, Lymphatic Metastasis, Mutation, Humans, Female, Tumor Suppressor Protein p53, Aged

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Powered by OpenAIRE graph
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Average
Average
Top 10%
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