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Updated: Jul 7, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
Published on: February 16, 2024
Cyclin E low molecular weight isoforms occur commonly in early-onset gastric cancer and independently predict
A N A Milne1, R Carvalho, M Jansen
1Department of Pathology, University Medical Centre, Utrecht, The Netherlands. a.n.a.milne@umcutrecht.nl
Background:
Post-translational cleavage of full-length cyclin E from the N-terminus can produce low molecular weight (LMW) isoforms of cyclin E containing the C-terminus only.
Aim:
To assess their presence in early-onset gastric cancer (EOGC), stump cancers and conventional gastric cancers and ascertain how they influence survival in EOGC.
Methods:
The expression of full-length and LMW isoforms of cyclin E in 330 gastric cancers, including early-onset gastric cancer (EOGC), stump cancer and conventional gastric cancer (>45 years old) was compared using antibodies targeted to the N- and C-terminals.
Results:
LMW isoforms were found in 35% of EOGCs, compared to 8% of conventional gastric cancers and 4% of stump cancers; their presence was visualised in cell lines using western blot analysis. In addition, C-terminal staining was a positive predictor of survival in EOGC. In contrast, no correlation with survival was found with the N-terminal antibody which detects only full-length cyclin E.
Conclusion:
EOGCs have a unique molecular phenotype and LMW isoforms of cyclin E may independently influence survival in EOGC.
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