[EphA2 mediated vascular endothelial growth factor expression via the p38 MAPK signaling pathway in squamous cell carcinoma of the head and neck].
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
; 48(3): 229-33, 2013 Mar.
Article
en Zh
| MEDLINE
| ID: mdl-23755789
ABSTRACT
OBJECTIVE:
To investigate the regulatory effect of erythropoietin-producing hepatocellular receptor (EphA2) on the expression of VEGF protein, a pro-angiogenic factor, via p38 mitogen-activated protein kinase (p38 MAPK) signaling pathway in squamous cell carcinoma of the head and neck(SCCHN) in vitro.METHODS:
SCCHN Tu686 cells were transfected with EphA2 overexpression vector pEGFP-N1-EphA2. Western blot was used to detect the expression of p38 MAPK and enzyme-linked immunosorbent assay (ELISA) was applied to assay of VEGF. SB203580 as a inhibitor of p38 MAPK signaling pathway was used.RESULTS:
The expression of VEGF protein was significantly up-regulated in Tu686 cells transfected with EphA2 overexpression vector (535.31 ± 45.71) pg/ml, when compared with Tu686 cells transfected with empty vector (400.99 ± 33.50) pg/ml and Tu686 cells with no transfection (385.30 ± 33.50) pg/ml (F = 17.091, P < 0.01). The expression of phosphorylated p38 MAPK was obviously increased in Tu686 cells with EphA2 overexpression. SB203580 inhibited the expressions of VEGF and phosphorylated p38 MAPK proteins in Tu686 cells with EphA2 overexpression.CONCLUSION:
EphA2 can regulate the expression of VEGF protein and stimulate p38 MAPK signaling pathway.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Carcinoma de Células Escamosas
/
Sistema de Señalización de MAP Quinasas
/
Receptor EphA2
/
Factor A de Crecimiento Endotelial Vascular
/
Neoplasias de Cabeza y Cuello
Límite:
Humans
Idioma:
Zh
Revista:
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Año:
2013
Tipo del documento:
Article
País de afiliación:
China