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  • Title: microRNA-199a-5p suppresses glioma progression by inhibiting MAGT1.
    Author: Wang G, Li Y, Li J, Zhang D, Luo C, Zhang B, Sun X.
    Journal: J Cell Biochem; 2019 Sep; 120(9):15248-15254. PubMed ID: 31038761.
    Abstract:
    microRNAs (miRNAs) can function as a tumor suppressor or oncogenic genes in human cancers. Alternation expression of miR-199a-5p has been revealed in several human cancers. However, its expression pattern and biological roles in glioma remain unclear. Expression levels of miR-199a-5p in glioma were evaluated at first. The effects of miR-199a-5p expression on cell proliferation, migration, and invasion were investigated using the MTT assay, wound-healing assay, and transwell invasion assay. The expression of miR-199a-5p was found to be reduced in glioma cell lines. Overexpression of miR-199a-5p inhibits glioma cell proliferation, migration, and invasion in vitro. Furthermore, the target of miR-199a-5p was predicted by TargetScan and validated by luciferase activity reporter assay. We found magnesium transporter 1 (MAGT1) was a direct target of miR-199a-5p. Overexpression of MAGT1 reversed the effects of miR-199a-5p on glioma cell behaviors. Taken together, our study revealed that miR-199a-5p and MAGT1 have the potential to be used as a biomarker for glioma.
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