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Effect of spleen tyrosine kinase on nonsmall cell lung cancer


 Department of Thoracic, The Second Hospital of Shandong University, Jinan, Shandong, China

Correspondence Address:
Bo Cong,
Department of Thoracic, The Second Hospital of Shandong University, 247, Beiyuan Street, Jinan 250033, Shandong
China
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Source of Support: None, Conflict of Interest: None

Aim of Study: To investigate the anti-tumor effect of spleen tyrosine kinase (Syk) on the human nonsmall cell lung cancer cells in vitro and its mechanism. Materials and Methods: In this study, we constructed a eukaryotic expression vector pcDNA3.1D/V5-His-TOPO/Syk and transfected it into human nonsmall cell lung cancer cells A549. Then, we not only analyzed the expression of Syk in transfected cells and its invasion but also the expression of matrix metalloproteinase-9 (MMP-9). Results: The results showed that overexpressed Syk significantly inhibited A549 cell invasive ability by decreasing the expression of MMP-9. Conclusion: The overexpressed Syk plays an important role in tumor invasion and metastasis, and a negative role in human nonsmall cell lung cancer cells.


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    -  Hao YT
    -  Peng CL
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