Acta Anatomica Sinica ›› 2018, Vol. 49 ›› Issue (5): 598-604.doi: 10.16098/j.issn.0529-1356.2018.05.006

• Cell and Molecules Biology • Previous Articles     Next Articles

Effect of N-cadherin overexpression on protrusion formation and catenins expression in mouse neuroblastoma N2a cells

ZHU Shao-yi 1,2 GUAN Li-hong 1,2* YANG Ci-qing 1,2 ZHANG Bi-chao 1,2 LI Qiu-ling 1,2 LIN Jun-tang 1,2,3*   

  1. 1. College of Life Science and Technology, Research Center of Stem Cell and Biotherapy, Xinxiang Medical University,He’nan Xinxiang 453003, China; 2. He’nan Key Laboratory of Medical Tissue Regeneration,He’nan Xinxiang 453003, China;  3. College of Biomedical Engineering, Xinxiang Medical University, He’nan Xinxiang 453003, China
  • Received:2017-11-16 Revised:2018-03-21 Online:2018-10-06 Published:2018-10-06
  • Contact: GUAN Li-hong ; LIN Jun-tang E-mail:linjtlin@126.com

Abstract:

Objective To analyse the effects of N-cadherin overexpression on cell morphology and catenins expression by using mouse neuroblastoma N2a cells. Methods The mouse N-cadherin gene was cloned to pCAG-MCS-EGFP plasmid and transfected into N2a cells by Lipofectamine 3000. The empty vector pCAG-MCS-EGFP and the overexpression vector pCAG-N-Cad-EGFP transfected group were used as control group and experimental group, respectively. Cell scratche and cell adhesion experiments were used to detect the effects of N-cadherin overexpression on the migration and adhesion of N2a cells. Immunofluorescence was used to detect the effect of N-cadherin overexpression on the morphology of N2a cells. The expression of catenin family was detected by Western blotting. Results Compared with the control group, overexpressing N-cadherin promoted the protrusion formation of N2a cells, which led to the increase and elongation of protrusion in N2a cells. N-cadherin overexpression enhancea cell adhesion and inhibited migration. N-cadherin overexpression resulted in the expression level of α-catenin, β-catenin and p120 protein significantly increased (P<0.05), while γ-catenin expression decreased but the difference was not significant (P>0.05). In addition, the cell aggregation phenomenon was observed when N-cadherin overexpression. Conclusion N-cadherin overexpression promotes protrusion formation and adhesion ability in N2a cells, but inhibits cell migration, regulates the expression of the family of catenin and promotes cell aggregation.

Key words: N-cadherin, Mouse neuroblastoma N2a cell, Cell protrusion, Catenin, Cell adhesion, Immunofluorescence, Mouse