Study on Factors Affecting Lymph Node Metastasis in Oesophageal Cancer
Author Information
Author(s): Sato F, Shimada Y, Watanabe G, Uchida S, Makino T, Imamura M
Primary Institution: Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University
Hypothesis
Does the expression of VEGF, MMP-9, and E-cadherin change during lymph node metastasis in oesophageal cancer?
Conclusion
The expression of VEGF, MMP-9, and E-cadherin changes during the process of lymph node metastasis in oesophageal cancer, with different patterns of change.
Supporting Evidence
- Lymph node metastasis is a strong independent prognostic factor for oesophageal cancer.
- The expression of MMPs and reduction of E-cadherin correlate with lymph node metastasis.
- VEGF expression was down-regulated in Late Stage lymph node metastasis.
- MMP-9 expression was elevated in Early Stage metastasis.
- E-cadherin expression is restored somewhat in Early Stage metastasis but suppressed again in Late Stage metastasis.
Takeaway
This study looked at how certain proteins change when oesophageal cancer spreads to lymph nodes, finding that they behave differently at various stages of metastasis.
Methodology
Immunohistochemistry was used to detect protein expression in paraffin-embedded specimens of oesophageal squamous cell carcinoma.
Digital Object Identifier (DOI)
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