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http://dx.doi.org/10.7314/APJCP.2012.13.5.2263

miR-181b as a Potential Molecular Target for Anticancer Therapy of Gastric Neoplasms  

Guo, Jian-Xin (Cancer Chemotherapy Center, The First People Hospital of Ningbo)
Tao, Qing-Song (Cancer Chemotherapy Center, Yinzhou People Hospital)
Lou, Peng-Rong (Cancer Chemotherapy Center, Yinzhou People Hospital)
Chen, Xiao-Chun (Cancer Chemotherapy Center, Yinzhou People Hospital)
Chen, Jun (Cancer Chemotherapy Center, Yinzhou People Hospital)
Yuan, Guang-Bo (Cancer Chemotherapy Center, Yinzhou People Hospital)
Publication Information
Asian Pacific Journal of Cancer Prevention / v.13, no.5, 2012 , pp. 2263-2267 More about this Journal
Abstract
Objective: MicroRNAs (miRNAs) play important roles in carcinogenesis. The aim of the present study was to explore the effects of miR-181b on gastric cancer. Methods: The expression level of miR-181b was quantified by qRT-PCR. MTT, flow cytometry and matrigel invasion assays were used to test proliferation, apoptosis and invasion of miR-181b stable transfected gastric cancer cells. Results: miR-181b was aberrantly overexpressed in gastric cancer cells and primary gastric cancer tissues. Further experiments demonstrated inducible expression of miR-181b by Helicobacter pylori treatment. Cell proliferation, migration and invasion in the gastric cancer cells were significantly increased after miR-181b transfection and apoptotic cells were also increased. Furthermore, overexpression of miR-181b downregulated the protein level of tissue inhibitor of metalloproteinase 3 (TIMP3). Conclusion: The upregulation of miR-181b may play an important role in the progress of gastric cancer and miR-181b maybe a potential molecular target for anticancer therapeutics of gastric cancer.
Keywords
miR-181b; gastric cancer; TIMP3; anticancer therapeutics;
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