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Pathology and Oncology Research
Article . 2009 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
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Pergamos
Article . 2010
Data sources: Pergamos
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Clinical Significance of Ephrin (Eph)-A1, -A2, -A4, -A5 and -A7 Receptors in Pancreatic Ductal Adenocarcinoma

Authors: Constantinos Giaginis; Tsourouflis, G.; Zizi-Serbetzoglou, A.; Kouraklis, G.; Chatzopoulou, E.; Dimakopoulou, K.; Theocharis, S.E.;

Clinical Significance of Ephrin (Eph)-A1, -A2, -A4, -A5 and -A7 Receptors in Pancreatic Ductal Adenocarcinoma

Abstract

Ephrin (Eph) receptors have been reported to be frequently overexpressed in a wide variety of cancer types, being associated with tumor growth, invasion, metastasis and angiogenesis. The aim of the present study was to evaluate the clinical significance of Eph-A1, -A2, -A4, -A5 and -A7 expression in pancreatic ductal adenocarcinoma. Eph-A1, -A2, -A4, -A5 and -A7 expression and staining intensity were assessed immunohistochemically in tumoral samples of 67 pancreatic adenocarcinoma patients and were statistically analyzed in relation to clinicopathological characteristics, tumor proliferative capacity and patients' survival. Eph receptors were abundantly expressed in pancreatic ductal adenocarcinoma cases examined. Eph-A1 staining intensity was significantly associated with tumor size (pT, p = 0.008) and tumor histopathological stage (pStage, p = 0.012). Eph-A2 expression was significantly associated with patients' age (p = 0.007), while Eph-A4 and Eph-A5 with tumor proliferative capacity (p = 0.019 and p = 0.011, respectively). Pancreatic adenocarcinoma patients with moderate/intense Eph-A5 or Eph-A7 staining presented significantly shorter survival times compared to those with negative/mild one (log-rank test, p = 0.024 and p = 0.009, respectively). Multivariate analysis identified Eph-A5 and Eph-A7 staining intensity as independent prognostic factors (p = 0.048 and p = 0.004, respectively). In conclusion, the present study revealed that Eph receptors were associated with pancreatic cancer characteristics, supporting evidence for their potential clinical application in management and prognosis of pancreatic adenocarcinoma patients.

Keywords

Male, Receptor, EphA1, Receptor, EphA2, Receptor, EphA4, Receptor, EphA5, Kaplan-Meier Estimate, Receptor, EphA7, Prognosis, Immunohistochemistry, Pancreatic Neoplasms, Biomarkers, Tumor, Humans, Female, Aged, Carcinoma, Pancreatic Ductal, Neoplasm Staging, Receptors, Eph Family

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
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!
55
Top 10%
Top 10%
Top 10%
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gold