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LINC01094 Down-Regulates miR-330-3p and Enhances the Expression of MSI1 to Promote the Progression of Glioma

Authors Zhu B, Liu W, Liu H, Xu Q, Xu W

Received 19 March 2020

Accepted for publication 23 June 2020

Published 28 July 2020 Volume 2020:12 Pages 6511—6521


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Antonella D'Anneo

Bin Zhu,* Wei Liu,* Hongliang Liu, Qiang Xu, Wei Xu

Department of Neurosurgery, Huashan North Hospital, Baoshan Branch, Fudan University, Shanghai 200431, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Wei Xu Email

Background: This study aims at probing into the expression, function, and mechanism of LINC01094 and miR-330-3p in glioma.
Materials and Methods: qRT-PCR was employed to examine LINC01094 and miR-330-3p expressions in gliomas. After gain-of-function and loss-of-function models were constructed, CCK-8 and Transwell assays were used to detect the proliferation, migration and invasion of LN229 and U251 cells, respectively. Additionally, dual luciferase reporter gene assay was utilized to verify the binding site between m4iR-330-3p and LINC01094, miR-330-3p, and the 3ʹUTR of musashi RNA binding protein 1 (MSI1). Then, RNA pull-down, RIP, qRT-PCR and Western blot were employed to detect the regulatory relationships among LINC01094, miR-330-3p, and MSI1.
Results: The expression of LINC01094 was elevated in glioma tissues and cell lines, and the high expression of LINC01094 was associated with high grade of glioma. In contrast, miR-330-3p was lowly expressed in glioma tissue. Overexpression of LINC01094 or down-regulation of miR-330-3p promoted the proliferation, migration, and invasion of glioma cells, while LINC01094 knockdown or miR-330-3p up-regulation impeded these processes. miR-330-3p was identified as a target miRNA of LINC01094, and it could be negatively regulated by LINC01094. In addition, miR-330-3p antagonized the function of LINC01094 by negatively regulating MSI1.
Conclusion: LINC01094 promotes the proliferation, migration, and invasion of glioma cells by adsorbing miR-330-3p and up-regulating the expression of MSI1.

Keywords: LINC01094, miR-330-3p, MSI1, glioma

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