Morin inhibited lung cancer cells viability, growth, and migration by suppressing miR-135b and inducing its target CCNG2
Open Access
- 4 October 2017
- journal article
- research article
- Published by IOS Press in Tumor Biology
- Vol. 39 (10)
- https://doi.org/10.1177/1010428317712443
Abstract
Lung cancer is one of the most severe threats with the highest mortality rate to humans in the world. Recently, morin has been reported to have anti-tumor properties observed in several types of cancers. However, its mechanism is still unclear. We assessed the influences of morin on cell viability, colony formation, and migration ability of A549 and employed microRNA array to identify the microRNAs affected by morin. We found that morin-treated A549 cells showed statistically decreased cell viability, colony formation, and migration rate when comparing with the dimethyl sulfoxide–treated cells. Microarray results showed that with the treatment of morin, the expression level of miR-135b significantly reduced compared the control group, suggesting that morin may exert its anti-cancer property by suppressing the expression of miR-135b. In addition, we found a potential binding site of miR-135b within 3′ untranslated region of CCNG2-encoding cyclin homolog cyclin-G2. We evidenced that miR-135b directly targets CCNG2, which could be a potential biomarker of lung cancer prognosis. Morin exerts its anti-tumor function via downregulating the expression of miR-135b that directly targets and represses CCNG2.Keywords
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