Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.
Recent studies indicate that MEG3, a long non-coding RNA (lncRNA) and microRNA-184 (miR-184) are abnormally expressed in osteosarcoma (OS). To this end, we show here that MEG3 negatively regulates the expression of miR-184 and down-stream effectors of WNT/β-catenin pathway including β-catenin, T-cell factor 4 (TCF4) and c-MYC. MEG3 overexpression by adenoviral vectors down-regulate proliferation, migration and apoptosis of OS in vitro and restrict the tumor growth in vivo. We also show that the effects of MEG3 can be effectively reversed by miR-184 mimic. Together these studies show that both MEG3 and miR-184 cooperatively regulate the proliferation, migration and apoptosis of OS.
