E-cadherin expression as a differentiation marker in gastric cancer
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Updated: Oct 25, 2026

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Published on: February 27, 2020
A J Karayiannakis1, K N Syrigos, E Chatzigianni
1First Department of Surgery, 1st IKA Hospital, Athens, Greece.
Background/Aims:
E-cadherin is a cell-cell adhesion molecule involved in tumor progression and metastasis. We evaluated the E-cadherin expression pattern in gastric cancer and investigated its relationship to histopathological features.
Methodology:
The expression of E-cadherin was evaluated in 83 formalin-fixed, paraffin-embedded specimens of gastric cancer by immunohistochemistry.
Results:
In benign gastric mucosa, E-cadherin was expressed uniformly at the cell membrane. Abnormal E-cadherin expression with loss of membranous localization was found in 55 (56%) cancer specimens. Aberrant E-cadherin expression was found more often in diffuse (96%) and mixed type tumors (91%) than in intestinal type tumors (47%) (p=0.0001). A significantly higher proportion of signet-ring (84%) and undifferentiated tumors (87%) showed abnormal E-cadherin expression compared with adenocarcinomas with glandular morphology (57%) (p=0.01). There was a significant correlation between abnormal E-cadherin expression and degree of differentiation (p=0.0001), local tumor extent (p=0.002), and the presence of lymph node metastases (p=0.04).
Conclusions:
Loss of normal E-cadherin expression may serve as a differentiation marker in gastric cancer.
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