Regulatory mechanisms of K-ras to girdin in COS7 cells and expression of K-ras and girdin in colorectal carcinoma / 中国病理生理杂志
Chinese Journal of Pathophysiology
; (12): 297-301, 2017.
Article
em Zh
| WPRIM
| ID: wpr-506342
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WPRO
ABSTRACT
AIM:To investigate molecular regulatory mechanism of K-ras to girdin protein in COS7 cells and expression of K-ras and girdin in colorectal carcinoma tissues .METHODS:The lentiviral vector carrying K-ras gene was constructed and transfected in the COS 7 cells.The expression of K-ras, girdin proteins and other related proteins in COS 7 cells and colorectal carcinoma tissues was observed by Western blot .RESULTS:The COS7 cells with K-ras over-expres-sion showed an irregular cell morphology .The results of Western blot indicated that the downstream signal protein levels of p-ERK1/2, p-Stat3 and girdin were significantly increased in the COS 7 cells with K-ras over-expression.Transfection with the K-ras siRNA into the COS7 cells significantly reduced the protein levels of p-ERK1/2, p-Stat3 and girdin.In the color-ectal carcinoma tissues (7 cases), 5 cases had higher expression of K-ras and girdin compared with pericarcinous tissues . CONCLUSION:K-ras regulates girdin expression through the signal pathway of K-ras-ERK1/2-Stat3-girdin.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Chinese Journal of Pathophysiology
Ano de publicação:
2017
Tipo de documento:
Article