JHDM1D-AS1-driven Inhibition of MiR-940 Releases ARTN Expression to Induce Breast Carcinogenesis

Overview

Journal Clin Transl Oncol

Specialty Oncology

Date 2023 Mar 2

PMID 36862282

Authors

Yonggang Zuo

Mingde Ma

Yuqing Wen

Liang Chang

Changping Qu

Affiliations

Soon will be listed here.

Abstract

Introduction: As ceRNA network of long non-coding RNA (lncRNA)-microRNA (miR)-messenger RNAs (mRNA) can be predicted on the basis of bioinformatics tools, we are now one step closer to deeper understanding carcinogenic mechanisms. In this study, we clarified the mechanistic understanding of JHDM1D-AS1-miR-940-ARTN ceRNA network in the development of breast cancer (BC).

Materials And Methods: The lncRNA-miRNA-mRNA interaction of interest was predicted by in silico analysis and identified by conducting RNA immunoprecipitation, RNA pull-down and luciferase assays. The expression patterns of JHDM1D-AS1, miR-940 and ARTN in BC cells were altered by lentivirus infection and plasmid transfection for functional assays on the biological properties of BC cells. Finally, the tumorigenic and metastatic abilities of BC cells were assessed in vivo.

Results: JHDM1D-AS1 was highly expressed, while miR-940 was poorly expressed in BC tissues and cells. JHDM1D-AS1 could competitively bind to miR-940, whereby promoting the malignant behaviors of BC cells. Furthermore, ARTN was identified as a target gene of miR-940. Through targeting ARTN, miR-940 exerted a tumor-suppressive role. In vivo experiments further confirmed that JHDM1D-AS1 enhanced the tumorigenesis and metastasis through up-regulation of ARTN.

Conclusions: Taken together, our study demonstrated the involvement of ceRNA network JHDM1D-AS1-miR-940-ARTN in the progression of BC, which highlighted promising therapeutic targets for BC treatment.

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