湖北民族学院学报(医学版)
湖北民族學院學報(醫學版)
호북민족학원학보(의학판)
JOURNAL OF HUBEI INSTITUTE FOR NATIONALITIES(MEDICAL EDITION)
2014年
4期
5-8
,共4页
子宫内膜癌%血管内皮生长因子C%膜突蛋白%侵袭
子宮內膜癌%血管內皮生長因子C%膜突蛋白%侵襲
자궁내막암%혈관내피생장인자C%막돌단백%침습
endometrial cancer%vascular endothelial growth factor C ( VEGF-C)%moesin%in-vasion
目的:研究VEGF-C( Vascular endothelial growth factor C)促子宫内膜癌细胞侵袭能力的影响,探讨Rho相关蛋白激酶2( Rho-associated kinase 2, ROCK-2)/膜突蛋白( moesin)信号通路在其中的作用。方法体外培养宫颈癌细胞株ishikawa细胞,免疫印迹法测定VEGF-C对ROCK-2/moesin蛋白的表达和磷酸化的调控作用。采用Transwell侵袭小室法观察VEGF-C对Ishikawa细胞侵袭能力的影响。转染moesin siRNA抑制moesin表达后,进一步观察VEGF-C对细胞侵袭的影响。结果 VEGF-C(100 mg/L)处理细胞24 h后,可显著增高ROCK-2蛋白、moe-sin蛋白、磷酸化moesin蛋白的表达。 VEGF-C单克隆抗体阻断可上述作用。以ROCK-2特异性抑制剂Y-27632预处理细胞后,可明显抑制VEGF-C促moesin蛋白表达及磷酸化的作用。 VEGF-C可明显促进Ishikawa细胞的侵袭能力,与对照组比较,其增加幅度为(286.4±25.2)%(n=5,P<0.01)。而在转染特异性moesin siRNA 48 h抑制moesin表达后,VEGF-C促细胞侵袭的能力明显减弱,抑制率为(75.6±9.8)%( n=5,P<0.01)。结论 VEGF-C可促进子宫内膜癌的侵袭能力,这一作用由ROCK-2/moesin信号通路介导。
目的:研究VEGF-C( Vascular endothelial growth factor C)促子宮內膜癌細胞侵襲能力的影響,探討Rho相關蛋白激酶2( Rho-associated kinase 2, ROCK-2)/膜突蛋白( moesin)信號通路在其中的作用。方法體外培養宮頸癌細胞株ishikawa細胞,免疫印跡法測定VEGF-C對ROCK-2/moesin蛋白的錶達和燐痠化的調控作用。採用Transwell侵襲小室法觀察VEGF-C對Ishikawa細胞侵襲能力的影響。轉染moesin siRNA抑製moesin錶達後,進一步觀察VEGF-C對細胞侵襲的影響。結果 VEGF-C(100 mg/L)處理細胞24 h後,可顯著增高ROCK-2蛋白、moe-sin蛋白、燐痠化moesin蛋白的錶達。 VEGF-C單剋隆抗體阻斷可上述作用。以ROCK-2特異性抑製劑Y-27632預處理細胞後,可明顯抑製VEGF-C促moesin蛋白錶達及燐痠化的作用。 VEGF-C可明顯促進Ishikawa細胞的侵襲能力,與對照組比較,其增加幅度為(286.4±25.2)%(n=5,P<0.01)。而在轉染特異性moesin siRNA 48 h抑製moesin錶達後,VEGF-C促細胞侵襲的能力明顯減弱,抑製率為(75.6±9.8)%( n=5,P<0.01)。結論 VEGF-C可促進子宮內膜癌的侵襲能力,這一作用由ROCK-2/moesin信號通路介導。
목적:연구VEGF-C( Vascular endothelial growth factor C)촉자궁내막암세포침습능력적영향,탐토Rho상관단백격매2( Rho-associated kinase 2, ROCK-2)/막돌단백( moesin)신호통로재기중적작용。방법체외배양궁경암세포주ishikawa세포,면역인적법측정VEGF-C대ROCK-2/moesin단백적표체화린산화적조공작용。채용Transwell침습소실법관찰VEGF-C대Ishikawa세포침습능력적영향。전염moesin siRNA억제moesin표체후,진일보관찰VEGF-C대세포침습적영향。결과 VEGF-C(100 mg/L)처리세포24 h후,가현저증고ROCK-2단백、moe-sin단백、린산화moesin단백적표체。 VEGF-C단극륭항체조단가상술작용。이ROCK-2특이성억제제Y-27632예처리세포후,가명현억제VEGF-C촉moesin단백표체급린산화적작용。 VEGF-C가명현촉진Ishikawa세포적침습능력,여대조조비교,기증가폭도위(286.4±25.2)%(n=5,P<0.01)。이재전염특이성moesin siRNA 48 h억제moesin표체후,VEGF-C촉세포침습적능력명현감약,억제솔위(75.6±9.8)%( n=5,P<0.01)。결론 VEGF-C가촉진자궁내막암적침습능력,저일작용유ROCK-2/moesin신호통로개도。
Objective To investigate the influence of vascular endothelial growth factor C on en-dometrial cancer invasion and to explore the role of Rho-associated kinase 2 ( ROCK-2)/moe-sin cascade in this process.Methods Endometrial cancer cell line Ishikawa cells were cultured. Western blot method was used to detect the modulatory effects of VEGF-C on ROCK-2, moe-sin protein expression and phosphorylation.Transwell invasion chamber assay was performed to access the effect of VEGF-C on cell invasion under the tranfs ection with specific moesin siRNA.Results Treatment with VEGF-C (100μg/L) for 24h enhances the ROCK-2 and moesin expression and phosphorylation, which is inhibited by VEGF-C.monoclonal antibody.Mean-while,the specific inhibitor of ROCK-2,Y-27632,largely inhibits VEGF-C enhanced-moesin ex-pression and phosphorylation.VEGF-C largely promoted Ishikawa cell invasion, with the in-creasing magnitude of (286.4±25.2)%(n=5,P<0.01).After Ishikawa cells were transfected with moesin siRNA,the effects of VEGF-C on cell invasion were largely inhibited, with the in-hibitory rate of (75.6±9.8)%(n=5,P<0.01).Conclusions VEGF-C promotes endometrial cancer cell invasion, which is mediated by the activation of ROCK-2/moesin cascade.