LncRNA B4GALT1-AS1 Recruits HuR to Promote Osteosarcoma Cells Stemness and Migration Via Enhancing YAP Transcriptional Activity

Overview

Journal Cell Prolif

Date 2018 Sep 6

PMID 30182452

Citations 41

Authors

Zhikun Li

Yi Wang

Ruixi Hu

Ruijun Xu

Wei Xu

Affiliations

Soon will be listed here.

Abstract

Objectives: This study aims to reveal the roles and related mechanisms of LncRNA B4GALT1-AS1 in osteosarcoma (OS) cells stemness and migration.

Materials And Methods: Real-time quantitative PCR (RT-qPCR) was used to detect the expression of several LncRNAs in OS tissues and normal adjacent tissues and in OS mammospheres and cells. Cell viability, transwell migration, tumour spheres formation and in vivo tumour formation assays were used to examine the effects of LncRNA B4GALT1-AS1 on OS progression. In addition, RNA immunoprecipitation (RIP) and Luciferase reporter assays were performed to determine the binding site of RNA-binding protein HuR on B4GALT1-AS1 and transcriptional factor YAP. Immunofluorescence analysis was used to examine YAP nuclear-cytoplasm translocation.

Results: LncRNA B4GALT1-AS1 expression was significantly increased in OS tissues and cells spheres. Knockdown of B4GALT1-AS1 inhibited OS cells proliferation, migration, stemness and chemotherapeutic sensitivity. Mechanistically, B4GALT1-AS1 recruited HuR to enhance YAP mRNA stability and thus its transcriptional activity.

Conclusions: We indicate that lncRNA B4GALT1-AS1 promotes OS cells stemness and migration via recruiting HuR to enhance YAP activity.

Citing Articles

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