Abstract:
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.
Key words:
Adenoid cystic carcinoma,
Transforming growth factor-β1,
Extracellular regulated protein kinases,
Matrix metalloproteinase-2,
Signal path
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]. Chinese Journal of Stomatological Research(Electronic Edition), 2012, 6(01): 29-37.