Differential cell cycle and proliferation marker expression in ductal pancreatic adenocarcinoma and pancreatic intraepithelial neoplasia (PanIN)
Differential cell cycle and proliferation marker expression in ductal pancreatic adenocarcinoma and pancreatic intraepithelial neoplasia (PanIN)
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Date
2010
Authors
Karamitopoulou, Eva
Zlobec, Inti
Tornillo, Luigi
Carafa, Vincenza
Schaffner, Thomas
Borner, Markus
Diamantis, Ioannis
Zimmermann, Arthur
Terracciano, Luigi
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Pathology ; 42 (2010), 3. - pp. 229-234. - ISSN 0031-3025. - eISSN 1465-3931
Abstract
Aims:: Pancreatic cancer is an aggressive tumour following a multistep progression model through precursors called pancreatic intraepithelial neoplasia (PanIN). Identification of reliable prognostic markers would help in improving survival. The aim of this study was to investigate the role as well as the prognostic significance of different cell cycle and proliferation markers, namely p21, p27, p53 and Ki‐67, in pancreatic carcinogenesis.
Methods:: We analysed the expression of p21, p27, p53 and Ki‐67, in 210 ductal pancreatic adenocarcinomas, 40 PanIN‐3 cases and 40 normal controls combined in a tissue microarray. The results were correlated with clinicopathological and follow‐up data.
Results:: Our study revealed a differential p27, p21, p53, and Ki‐67 expression between ductal adenocarcinoma, PanIN‐3 and normal pancreas. p27 expression progressively decreased from normal pancreas to PanIN and to pancreatic cancer. Decreased p27 and increased p53 expression showed a significant association with the T stage. A Ki‐67 >5% correlated with reduced survival.
Conclusions:: In pancreatic cancer, loss of p27 and increased p53 expression is associated with a more aggressive phenotype. p27 may play an important role in pancreatic carcinogenesis. A Ki‐67 >5% independently predicted poor outcome.
Methods:: We analysed the expression of p21, p27, p53 and Ki‐67, in 210 ductal pancreatic adenocarcinomas, 40 PanIN‐3 cases and 40 normal controls combined in a tissue microarray. The results were correlated with clinicopathological and follow‐up data.
Results:: Our study revealed a differential p27, p21, p53, and Ki‐67 expression between ductal adenocarcinoma, PanIN‐3 and normal pancreas. p27 expression progressively decreased from normal pancreas to PanIN and to pancreatic cancer. Decreased p27 and increased p53 expression showed a significant association with the T stage. A Ki‐67 >5% correlated with reduced survival.
Conclusions:: In pancreatic cancer, loss of p27 and increased p53 expression is associated with a more aggressive phenotype. p27 may play an important role in pancreatic carcinogenesis. A Ki‐67 >5% independently predicted poor outcome.
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570 Biosciences, Biology
Keywords
Pancreatic cancer,PanIN,prognosis,tissue microarray,immunohistochemistry
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KARAMITOPOULOU, Eva, Inti ZLOBEC, Luigi TORNILLO, Vincenza CARAFA, Thomas SCHAFFNER, Thomas BRUNNER, Markus BORNER, Ioannis DIAMANTIS, Arthur ZIMMERMANN, Luigi TERRACCIANO, 2010. Differential cell cycle and proliferation marker expression in ductal pancreatic adenocarcinoma and pancreatic intraepithelial neoplasia (PanIN). In: Pathology. 42(3), pp. 229-234. ISSN 0031-3025. eISSN 1465-3931. Available under: doi: 10.3109/00313021003631379BibTex
@article{Karamitopoulou2010-04Diffe-13538, year={2010}, doi={10.3109/00313021003631379}, title={Differential cell cycle and proliferation marker expression in ductal pancreatic adenocarcinoma and pancreatic intraepithelial neoplasia (PanIN)}, number={3}, volume={42}, issn={0031-3025}, journal={Pathology}, pages={229--234}, author={Karamitopoulou, Eva and Zlobec, Inti and Tornillo, Luigi and Carafa, Vincenza and Schaffner, Thomas and Brunner, Thomas and Borner, Markus and Diamantis, Ioannis and Zimmermann, Arthur and Terracciano, Luigi} }
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