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中华口腔医学研究杂志(电子版) ›› 2012, Vol. 6 ›› Issue (01) : 29 -37. doi: 10.3877/cma.j.issn.1674-1366.2012.01.005

基础研究

转化生长因子β1/细胞外信号调节激酶/基质金属蛋白酶通路对腺样囊性癌侵袭和迁移的影响
谢宏亮1, 张彬1,(), 徐志英2, 梁启祥1   
  1. 1.510120 广州,中山大学孙逸仙纪念医院口腔颌面外科
    2.北京大学深圳医院口腔科
  • 收稿日期:2011-09-14 出版日期:2012-02-01
  • 通信作者: 张彬
  • 基金资助:
    广东省自然科学基金(9151008901000041)广东省科技计划国际合作项目(2010B050700005)

Experiment study on the role and mechanism of TGF-β1/ERK1/2/MMP-2 signaling pathways in the migration and invasion process of ACC

Hong-liang XIE1, Bin ZHANG1,(), Zhi-ying XU1, Qi-Xiang LIANG1   

  1. 1.Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
  • Received:2011-09-14 Published:2012-02-01
  • Corresponding author: Bin ZHANG
引用本文:

谢宏亮, 张彬, 徐志英, 梁启祥. 转化生长因子β1/细胞外信号调节激酶/基质金属蛋白酶通路对腺样囊性癌侵袭和迁移的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2012, 6(01): 29-37.

Hong-liang XIE, Bin ZHANG, Zhi-ying XU, Qi-Xiang LIANG. Experiment study on the role and mechanism of TGF-β1/ERK1/2/MMP-2 signaling pathways in the migration and invasion process of ACC[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2012, 6(01): 29-37.

目的

探讨转化生长因子β1/细胞外信号调节激酶/基质金属蛋白酶2(TGF-β1/ERK1/2/MMP-2)通路在腺样囊性癌(ACC)侵袭和迁移过程中的作用及机制。

方法

以腺样囊性癌ACC-2 细胞株为研究对象。 用转化生长因子β1(TGF-β1)以及ERK 通路抑制剂U0126 处理ACC-2 细胞。 MTT 检测ACC-2 细胞的增殖情况,Transwell 实验检测细胞迁移、侵袭能力,Western blot 蛋白印迹检测ACC-2 细胞中ERK1/2 的活化及MMP-2 的表达情况,实时荧光定量聚合酶链反应检测ACC-2 细胞中MMP-2 的mRNA 的表达情况。

结果

TGF-β1 及U0126 干预后,ACC-2 细胞增殖能力无明显变化;TGF-β1 刺激可增强ACC-2 细胞迁移、侵袭能力,增加ACC-2 细胞p-ERK1/2 和MMP-2 蛋白以及MMP-2 mRNA 的表达,而U0126 阻断ERK 磷酸化后,抑制了TGF-β1 刺激的增强作用,ACC-2 细胞的迁移、侵袭能力降低,MMP-2 蛋白和mRNA的表达均下降。

结论

TGF-β1/ERK1/2/MMP-2 通路参与了人唾液腺ACC 侵袭和迁移能力的调节。 TGF-β1 可通过上调ERK1/2,继而上调MMP-2,促进人唾液腺ACC 细胞的侵袭和迁移能力,ERK1/2 可能成为人唾液腺ACC 侵袭防治的新靶点。

Objective

To investigate the role of TGF-β1/ERK1/2/MMP-2 signaling pathways in the migration and invasion process of salivary adenoid cystic carcinoma cells.

Methods

ACC-2 cell line were used in this study. The proliferation of ACC-2 cell line was observed by MTT assay; cell migration and invasion ablity were examined by Transwell; the expression of MMP-2 in salivary adenoid cystic carcinoma cell lines was tested by Western blotting and Real-time PCR. The activity of ERK1/2 signaling pathway was measured by Western blotting. The effects of the ERK pathway specific inhibitors on TGF-β1-activated MMP-2 expression in ACC-2 cell lines were examined.

Results

TGF-β1 and U0126 could not enhance the proliferation of ACC-2 cells; TGF-β1 could enhance the migration and invasion abilities of them significantly. TGF-β1 enhanced expression of p-ERK1/2 and MMP-2 protein and MMP-2 mRNA in ACC-2 cells. When U0126 inhibited ERK1/2 pathway, the abilities of migration and invasion and production of MMP-2 stimulated by TGF-β1 were significantly inhibited in ACC-2 cells.

Conclusions

TGF-β1/ERK1/2/MMP-2 signaling pathways participate in the regulation of migration and invasion abilities in ACC. TGF-β1 can up-regulate ERK1/2, and then enhanced MMP-2 expression, promote the migration and invasion abilities of ACC. ERK1/2 may be turned to be a new target spot to prevent the invasion of ACC.

图1 TGF-β1 和U0126 对ACC-2 细胞增殖能力的影响(,n=5) 与对照组相比,aP >0.05
表1 TGF-β1 和U0126 对ACC-2 细胞增殖能力的影响(,n=5)
图2 TGF-β1 和U0126 对ACC-2 细胞迁移能力的影响(×300) A. TGF-β1(-)+U0126(-); B. TGF-β1(10 ng/ml)+U0126(-); C. TGF-β1(10 ng/ml)+U0126(25 μmol/L)
图3 TGF-β1 和U0126 对ACC-2 细胞迁移能力的影响(,n=5) 与对照组相比,aP=0.000; 与单纯TGF-β1 刺激组相比,bP=0.000
图4 TGF-β1 和U0126 对ACC-2 细胞侵袭能力的影响(×300) A. TGF-β1(-)+U0126(-); B. TGF-β1(10 ng/ml)+U0126(-); C. TGF-β1(10 ng/ml)+U0126(25 μmol/L)
图5 TGF-β1 和U0126 对ACC-2 细胞侵袭能力的影响(,n=5) 与对照组相比,aP=0.002; 与单纯TGF-β1 刺激组相比,bP=0.005
图6 TGF-β1 和U0126 对ACC-2 细胞中磷酸化ERK 蛋白和MMP-2 蛋白表达的影响(,n=3) 与对照组相比,aP <0.05; 与单纯TGF-β1 刺激组相比,bP <0.05
表2 TGF-β1 和U0126 对ACC-2 细胞中p-ERK1/2 蛋白和MMP-2 蛋白表达影响比较
图7 TGF-β1 和U0126 对ACC-2 细胞中MMP-2 mRNA 表达的影响(,n=3) 与对照组相比,aP=0.000; 与单纯TGF-β1 刺激组相比,bP=0.000
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