Objective
To investigate the expression of Fascin1 and E-cadherin in gastric cancer and the relationship with the clinicopathological data,and to analyze the regulation relationship between Fascin1 and E-cadherin and the relationshipwith the invasion and metastasis of gastric cancer cells.
Methods
The expression of Fascin1 and E-cadherin was detected in gastric cancer and adjacent tissues by immunohistochemical method,and the relationship between the expression of two proteins in gastric cancer and the clinicopathological parameters and the correlation between the two proteins expressionin gastric cancer were analyzed,and the regulatory role ofFascin1 and E-cadherin was further detected in human gastric cancer SGC-7901 cells; The relationship between Fascin1 and invasion and migration of gastric cancer cells was researched by cell experiments.
Results
Theexpression of Fascin1 in gastric cancer tissues was significantly higher than that of paracancerous tissues.The expression of E-cadherin in gastric carcinoma was significantly lower than that of paracancer tissues.The expression of Fascin1 and E-cadherin in gastric cancer was negatively correlated.The expression of Fascin1 and E-cadherin in gastric cancer tissues was not related to sex and age. All of them were associated with TNM stage,lymph node metastasis,and invasion depth. After Fascin1 interference by siRNA,the mRNA and protein expression level of E-cadherin significantly increased in cell experiments,and the invasion and migration ability of cells significantly decreased in SGC-7901 cells.
Conclusion
Fascin1 was highly expressed in gastric cancer,and the expression of E-cadherin is lower in gastric cancer.Both of them are related to metastasis of gastric cancer.Fascin1 has negative regulation on E-cadherin.Fascin1 may be involved in the EMT process of gastric cancer cells and then regulation of the metastasis of gastric cancer.