期刊
CANCER LETTERS
卷 344, 期 2, 页码 195-203出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2013.10.031
关键词
miR-449a; Lung cancer; Survival; E2F3; Senescence
类别
资金
- Introduced Innovative R&D Team Program of Guangdong Province [201001Y0104789252]
- 863 Program of China [2012AA022501]
- Strategic Emerging Industry Key Technology Project of Guangdong Province [2012A080800006]
- Bio-Industry Developing Demonstration Project of Guangzhou [2012243]
- Combination Project of Guangdong Province
- Ministry of Education [2011B090400478]
MicroRNA-449a (miR-449a) was significantly downregulated in 156 lung cancer tissues (p < 0.001). We found that the low expression of miR-449a was highly correlated with cancer recurrence and survival of lung cancer patients. The transient introduction of miR-449a caused cell cycle arrest and cell senescence in A549 and 95D cells. Further studies revealed that E2F3 was a direct target of miR-449a in lung cancer cells. miR-449a also suppressed tumor formation in vivo in nude mice. These results suggest that miR-449a plays an important role in lung cancer tumorigenesis and that miR-449a might predict cancer recurrence and survival of lung cancer patients. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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