中国肿瘤临床
中國腫瘤臨床
중국종류림상
CHINESE JOURNAL OF CLINICAL ONCOLOGY
2014年
15期
957-960
,共4页
肖兵%叶敏华%周旋%吴淼经%韩磊%康春生%祝新根
肖兵%葉敏華%週鏇%吳淼經%韓磊%康春生%祝新根
초병%협민화%주선%오묘경%한뢰%강춘생%축신근
VHL%胶质瘤%侵袭%迁移%基质金属蛋白酶
VHL%膠質瘤%侵襲%遷移%基質金屬蛋白酶
VHL%효질류%침습%천이%기질금속단백매
VHL%glioma%invasion%migration%MMPs
目的:研究VHL基因对U251胶质瘤细胞侵袭和迁移能力的影响。方法:使用VHL表达质粒转染胶质瘤细胞,采用RT-PCR检测VHL mRNA表达,Western blot检测VHL、MMP-2、MMP-9蛋白表达,应用Transwell体外侵袭实验、划痕实验检测上调VHL基因后对U251胶质瘤细胞侵袭迁移能力的影响。使用VHL表达质粒处理后的U251细胞建立裸鼠颅内模型,利用免疫组织化学染色法对颅内模型组织切片中VHL、MMP-2、MMP-9蛋白表达进行检测。结果:VHL表达质粒转染胶质瘤细胞后VHL mRNA、VHL蛋白表达增高,MMP-2、MMP-9蛋白表达下降;并抑制U251胶质瘤细胞侵袭迁移能力。对染色后的组织切片进行分析,VHL表达质粒处理组中VHL的表达较对照组明显升高,MMP-2、MMP-9蛋白较对照组表达减少。结论:VHL基因能够有效抑制U251胶质瘤细胞侵袭迁移能力,VHL基因可成为治疗胶质瘤的一个有效靶点。
目的:研究VHL基因對U251膠質瘤細胞侵襲和遷移能力的影響。方法:使用VHL錶達質粒轉染膠質瘤細胞,採用RT-PCR檢測VHL mRNA錶達,Western blot檢測VHL、MMP-2、MMP-9蛋白錶達,應用Transwell體外侵襲實驗、劃痕實驗檢測上調VHL基因後對U251膠質瘤細胞侵襲遷移能力的影響。使用VHL錶達質粒處理後的U251細胞建立裸鼠顱內模型,利用免疫組織化學染色法對顱內模型組織切片中VHL、MMP-2、MMP-9蛋白錶達進行檢測。結果:VHL錶達質粒轉染膠質瘤細胞後VHL mRNA、VHL蛋白錶達增高,MMP-2、MMP-9蛋白錶達下降;併抑製U251膠質瘤細胞侵襲遷移能力。對染色後的組織切片進行分析,VHL錶達質粒處理組中VHL的錶達較對照組明顯升高,MMP-2、MMP-9蛋白較對照組錶達減少。結論:VHL基因能夠有效抑製U251膠質瘤細胞侵襲遷移能力,VHL基因可成為治療膠質瘤的一箇有效靶點。
목적:연구VHL기인대U251효질류세포침습화천이능력적영향。방법:사용VHL표체질립전염효질류세포,채용RT-PCR검측VHL mRNA표체,Western blot검측VHL、MMP-2、MMP-9단백표체,응용Transwell체외침습실험、화흔실험검측상조VHL기인후대U251효질류세포침습천이능력적영향。사용VHL표체질립처리후적U251세포건립라서로내모형,이용면역조직화학염색법대로내모형조직절편중VHL、MMP-2、MMP-9단백표체진행검측。결과:VHL표체질립전염효질류세포후VHL mRNA、VHL단백표체증고,MMP-2、MMP-9단백표체하강;병억제U251효질류세포침습천이능력。대염색후적조직절편진행분석,VHL표체질립처리조중VHL적표체교대조조명현승고,MMP-2、MMP-9단백교대조조표체감소。결론:VHL기인능구유효억제U251효질류세포침습천이능력,VHL기인가성위치료효질류적일개유효파점。
To determine the effects of Von Hippel-Lindau (VHL) on the invasion and migration of glioma U251 cells. Methods:U251 GBM cells were transfected using VHL expression plasmid. Real-time polymerase chain reaction was conducted to de-tect VHL mRNA expression after transfection. Western blot assay was used to measure protein (VHL, MMP-2, and MMP-9) expres-sion. Tumor invasion and migration were examined by the Transwell and wound-healing experimental methods after VHL up-regula-tion. The intracranial model of nude mouse was developed using U251 cells transfected by VHL expression plasmid, and immunohisto-chemical staining was used to measure protein (VHL, MMP-2, and MMP-9) expression in the tissue sections. Results: In the U251 cells transfected by VHL expression plasmid, the expression of VHL mRNA and VHL proteins increased, and the expression of MMP-2 and MMP-9 protein decreased. Meanwhile, the invasion and migration of glioma U251 cells were also inhibited. Immunohistochemical staining results showed that the expression of MMP-2 and MMP-9 proteins decreased, and the VHL protein expression increased after transfection. Conclusion:VHL can inhibit the invasion and migration of glioma U251 cells. Thus, VHL gene can be used as a target for the gene therapy of gliomas.