Arbutin suppresses osteosarcoma progression via miR-338-3p/MTHFD1L and inactivation of the AKT/mTOR pathway.

Abstract:

:Arbutin, a glycoside extracted from the plant Arctostaphylos uva-ursi, has been previously reported to possess antioxidant, anti-inflammatory and anticancer effects. Here, we investigated whether arbutin affects the proliferation of the cells of the osteosarcoma (OS) cell lines MG-63 and SW1353. Arbutin suppressed OS cell viability in a dose- and time-dependent manner, as shown by Cell Counting Kit-8 assay. Furthermore, arbutin exposure decreased the protein levels of MTHFD1L, CCND1 and phosphorylated-protein kinase B (AKT)/phosphorylated-mammalian target of rapamycin (mTOR). Potential upstream miRNAs of MTHFD1L were predicted using TargetScan, PICTAR5, miRanda and miRWalk. We performed luciferase activity assays to show that miR-338-3p directly targets and negatively regulates the expression of MTHFD1L. Knockdown of miR-338-3p promoted cell invasion, migration and proliferation in arbutin-treated OS cells via MTHFD1L. In summary, our data suggest that arbutin inhibits OS cell proliferation, migration and invasion via miR-338-3p/MTHFD1L and by inactivating the AKT/mTOR pathway.

journal_name

FEBS Open Bio

journal_title

FEBS open bio

authors

Wang CQ,Wang XM,Li BL,Zhang YM,Wang L

doi

10.1002/2211-5463.13024

subject

Has Abstract

pub_date

2020-11-03 00:00:00

issn

2211-5463

pub_type

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