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FEBS Lett. 2011 Apr 20;585(8):1191-6. doi: 10.1016/j.febslet.2011.03.039. Epub 2011 Mar 23.

miR-126 inhibits proliferation of small cell lung cancer cells by targeting SLC7A5.

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  • 1Dept. of Biochemistry and Molecular Biology, Clinical Genomics Center, University of Debrecen Medical and Health Science Center, Hungary.


Despite intensive efforts to improve therapies, small cell lung cancer (SCLC) still has a dismal median survival of 18 months. Since miR-126 is under-expressed in the majority of SCLC tumors, we investigated the effect of miR-126 overexpression on the proliferation and cell cycle distribution of H69 cells. Our results demonstrate that miR-126 inhibits proliferation of H69 cells, by delaying the cells in the G1 phase. Short interfering RNA (siRNA) mediated suppression of SLC7A5, a predicted target of mir-126, has the same effect on H69 cells. We also show for the first time that SLC7A5 is a direct target of miR-126.

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