LncRNA DLX6-AS1 Promotes the Progression of Neuroblastoma by Activating STAT2 Via Targeting MiR-506-3p

Overview

Journal Cancer Manag Res

Publisher Dove Medical Press

Specialty Oncology

Date 2020 Sep 9

PMID 32904436

Citations 12

Authors

Yanping Hu

Huifang Sun

Jiting Hu

Xiaomin Zhang

Affiliations

Soon will be listed here.

Abstract

Background: Neuroblastoma (NB) is a common malignant tumor of the sympathetic nervous system, mainly disturbing children. Long non-coding RNAs (lncRNAs) serving as promising cancer biomarkers have been well recognized. Our study intends to explore the functions of lncRNA X-inactive specific transcript (DLX6-AS1) in NB and provide a potential action mechanism.

Methods: The expression of DLX6-AS1, miR-506-3p and signal transducer and activator of transcription 2 () was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and colony formation assay. Cell cycle distribution was determined by flow cytometry assay. The protein level of cell cycle-related markers and STAT2 was detected by Western blot. Glycolysis progress was evaluated according to glucose consumption, lactate production and ATP level. The target genes were predicted by the online database Starbase3.0 and verified by dual-luciferase reporter assay.

Results: DLX6-AS1 expression was highly elevated in NB tissues and cells. DLX6-AS1 deficiency inhibited NB cell proliferation, cell cycle and glycolysis in vitro. MiR-506-3p was a target of DLX6-AS1, and miR-506-3p absence partly reversed the effects of DLX6-AS1 deficiency. Besides, STAT2 was targeted by miR-506-3p, and its expression was regulated by DLX6-AS1 through miR-506-3p. MiR-506-3p restoration also inhibited NB cell malignant behaviors, and overexpression partially abolished the role of miR-506-3p restoration. Moreover, DLX6-AS1 deficiency weakened tumor growth in vivo.

Conclusion: DLX6-AS1 regulated cell proliferation, cell cycle and glycolysis in vitro and tumor growth in vivo to promote the development of NB by upregulating via targeting miR-506-3p.

Citing Articles

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Anoushirvani A, Jafarian Yazdi A, Amirabadi S, Ahmadi Asouri S, Shafabakhsh R, Sheida A Cancer Gene Ther. 2023; 30(9):1190-1208.

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