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To investigate the function and mechanism of miR-610 in lung cancer cell proliferation and invasion.
The expression of miR-610 was detected by real-time PCR in lung cancer cell lines 95D and 95C with different metastatic ability. miR-610 mimics and inhibitor were transfected into 95D and 95C cells, respectively, and CCK-8 kit and BrdU incorporation assay were used to detect the effect of miR-610 on lung cancer cell proliferation. Cell scratch test and Transwell test were used to detect the effect of miR-610 on lung cancer cell invasion. Bioinformatics software was used to predict the potential target genes of miR-610. Dual-luciferase reporter gene system and Western blot were applied to test whether miR-610 regulates GJA3 expression directly.
The expression of miR-610 in the weakly metastatic lung cancer 95C cells was (8.75 ± 0.21) times higher than that in the highly metastatic lung cancer 95D cells (P < 0.01). BrdU incorporation assay showed that the number of proliferating 95C cells was (37.41 ± 2.39)% in