Clinical Significance of SIP1 and E-cadherin in Patients with Esophageal Squamous Cell Carcinoma.

Abstract

BACKGROUND:

Epithelial-mesenchymal transition (EMT), when epithelial cells convert to mesenchymal cells, influences cancer invasion and metastasis. Smad interacting protein 1 (SIP1) is an EMT trigger, which is inversely correlated with E-cadherin in some carcinomas. To elucidate the role of SIP1 in esophageal squamous cell carcinoma (ESCC), the status of EMT and the clinicopathological features were evaluated.

METHODS:

Immunohistochemical (IHC) analyses of 111 human ESCC tissue specimens for SIP1 and E-cadherin were performed, and the relationships between the expression and clinicopathological features were evaluated.

RESULTS:

IHC analyses of esophageal tumors showed the expression of SIP1 and E-cadherin to be significantly inversely correlated. Significant correlations between the SIP1 expression and clinicopathological variables such as differentiation, depth of invasion, vascular invasion, and pathological stage were also seen. Conversely, tumors with a weak expression of E-cadherin tended to exhibit greater histological differentiation. Logistic regression analyses revealed a positive SIP1 expression, lymphatic invasion, and vascular invasion to be factors predicting lymph node (LN) metastasis. Univariate survival analyses revealed a positive SIP1 expression predicted a poorer overall survival than a negative expression.

CONCLUSION:

These results suggest that SIP1 is correlated with LN metastasis and may therefore be an independent marker for metastasis in patients with ESCC.

• Authors: Rintaro Yoshida, Masaru Morita, Fumihiro Shoji, Yuichiro Nakashima, Naoko Miura, Keiji Yoshinaga, Tadashi Koga, Eriko Tokunaga, Hiroshi Saeki, Eiji Oki, Yoshinao Oda, Yoshihiko Maehara
• Journal: Annals of surgical oncology (Ann Surg Oncol) Vol. 22 Issue 8 Pg. 2608-14 (Aug 2015) ISSN: 1534-4681 [Electronic] United States
• PMID: 25564163 (Publication Type: Journal Article)

Chemical References

• Biomarkers, Tumor
• Cadherins
• Homeodomain Proteins
• Repressor Proteins
• ZEB2 protein, human
• Zinc Finger E-box Binding Homeobox 2

Topics

• Aged
• Biomarkers, Tumor (analysis)
• Blood Vessels (pathology)
• Cadherins (analysis)
• Carcinoma, Squamous Cell (chemistry, pathology)
• Epithelial-Mesenchymal Transition
• Esophageal Neoplasms (chemistry, pathology)
• Female
• Homeodomain Proteins (analysis)
• Humans
• Kaplan-Meier Estimate
• Lymphatic Metastasis
• Lymphatic Vessels (pathology)
• Male
• Middle Aged
• Neoplasm Grading
• Neoplasm Invasiveness
• Neoplasm Staging
• Repressor Proteins (analysis)
• Survival Rate
• Zinc Finger E-box Binding Homeobox 2