Long non-coding RNA ENST00462717 suppresses the proliferation, survival, and migration by inhibiting MDM2/MAPK pathway in glioma
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Updated: Mar 7, 2026

Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
Published on: October 4, 2019
Aiqin Wang1, Mingzhu Meng1, Xiuhe Zhao2
1EEG Room, Department of Neurology, Qilu Hospital of Shandong University, Shandong 250012, China.
Abstract:
Gliomas are the most common and aggressive primary malignant tumor in the central nervous system, and requires new biomarkers and therapeutic methods. Long noncoding RNAs (lncRNAs) are important factors in numerous human diseases, including cancer. But studies on lncRNAs and gliomas are limited. In this study, we investigated the expression patterns of lncRNAs in 3 pairs of glioma samples and adjacent non-tumor tissues via microarray and selected the most down-regulated lnc00462717 to further verify its roles in glioma. We observed that decreased lnc00462717 expression was associated with the malignant status in glioma. In vitro experiment demonstrated that lnc00462717 overexpression suppressed glioma cell proliferation, survival and migration while knockdown of lnc00462717 had an opposite result. Moreover, we identified MDM2 as a direct target of lnc00462717 and lnc00462717 played a role by partially regulating the MDM2/MAPK pathway. In conclusion, lnc00462717 may function in suppressing glioma cell proliferation, survival, migration and may potentially serve as a novel biomarker and therapeutic target for glioma.
Insights
This study reveals that decreased long noncoding RNA 00462717 (lnc00462717) expression correlates with glioma malignancy. Upregulating lnc00462717 inhibits glioma cell growth and migration, suggesting its potential as a therapeutic target.
Area of Science:
- Neuro-oncology
- Molecular Biology
- Cancer Research
Background:
- Gliomas are aggressive central nervous system tumors lacking effective biomarkers and therapies.
- Long noncoding RNAs (lncRNAs) are implicated in various cancers, but their role in gliomas is understudied.
Purpose of the Study:
- To investigate the expression and function of lncRNAs in glioma.
- To identify novel lncRNA biomarkers and therapeutic targets for glioma.
Main Methods:
- Microarray analysis of lncRNA expression in glioma and adjacent non-tumor tissues.
- In vitro experiments to assess the functional role of lnc00462717 in glioma cell lines.
- Identification of MDM2 as a direct target of lnc00462717.
Main Results:
- lnc00462717 was significantly downregulated in glioma tissues.
- Overexpression of lnc00462717 suppressed glioma cell proliferation, survival, and migration.
- Knockdown of lnc00462717 promoted these aggressive phenotypes.
- lnc00462717 regulates the MDM2/MAPK pathway.
Conclusions:
- lnc00462717 acts as a tumor suppressor in glioma by inhibiting cell proliferation, survival, and migration.
- lnc00462717 holds potential as a novel diagnostic biomarker and therapeutic target for glioma.
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