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MicroRNA-16 inhibits the migration and invasion of glioma cell by targeting Bcl-2 gene


Baochang Luo
Jing Zhang

Abstract

Purpose: To investigate the effect of microRNA-16 (miR-16) on glioma cell migration and invasiveness, and the mechanism involved.
Methods: MicroRNA-16 mimic or inhibitor was transfected into human glioma (SHG44) cells. Cell migration, invasiveness and morphology were determined using scratch test, Transwell invasion assay, and immunohistochemical staining, respectively. Expressions of bcl-2, MMP-9 and MMP-2, and NF-κB1 proteins were measured using Western blotting.
Results: Overexpression of MicroRNA-16 significantly down-regulated MMP-9 protein in SHG44 cells (p < 0.05), but MMP-2 protein expressions in the 2 groups were comparable (p > 0.05). Protein expressions of MMP-9 and NF-κB1 were significantly down-regulated in human glioma positive cells, relative to negative control.
Conclusion: MiR-16 overexpression suppresses the migration and invasiveness of SHG44 cells via the regulation of NF-κB1/MMP-9 signaling pathway, and it directly targets bcl-2 gene by inhibiting its protein expression. This finding affords a new target for developing new anti-glioma drugs.


Keywords: Bcl-2, Expression, Glioma, MicroRNA-16, NF-κB1signaling pathway


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eISSN: 1596-9827
print ISSN: 1596-5996