SIRT1 participates in epithelial-mesenchymal transition of EC-9706 and Eca-109 cells by regulating Snail expression / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1325-1330, 2018.
Article
Dans Chinois
| WPRIM
| ID: wpr-771473
ABSTRACT
OBJECTIVE@#To explore the role of SIRT1 in the occurrence of epithelial-mesenchymal transition (EMT) in EC-9706 and Eca-109 cells and the possible mechanism.@*METHODS@#Three chemically synthesized siRNA targeting SIRT1 were transfected into EC-9706 and Eca-109 cells with the non-transfected cells and cells transfected with the negative siRNAs as controls. Real-time PCR and Western blotting were used to detect the expressions of SIRT1, E-cadherin, vimentin, Snail, Twist1 and ZEB in the cells. Transwell invasion assay and wounding healing assay were used to examine the changes in the invasion and metastasis abilities of the cells after transfection.@*RESULTS@#EC-9706 and Eca-109 cells transfected with SIRT1 siRNA1 and SIRT1 siRNA3 showed significantly decreased mRNA and protein expressions of SIRT1 ( < 0.05). Transwell invasion assay and wounding healing assay showed that transfection with SIRT1 siRNA1 and SIRT1 siRNA3 caused significantly lowered invasion and metastasis abilities in EC-9706 and Eca-109 cells ( < 0.05). In EC-9706 and Eca-109 cells transfected with SIRT1 siRNA1 and SIRT1 siRNA3, the expression level of E-cadherin was significantly increased while the expressions of vimentin, Snail and Twist were significantly lowered ( < 0.05).@*CONCLUSIONS@#SIRT1 participates in the invasion and metastasis of EC-9706 and Eca- 109 cells probably by inducing EMT via regulating the expression of Snail.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Physiologie
/
Vimentine
/
ARN messager
/
Protéines nucléaires
/
Transfection
/
Antigènes CD
/
Cadhérines
/
Mouvement cellulaire
/
Petit ARN interférent
/
Lignée cellulaire tumorale
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2018
Type:
Article
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