Long Non-coding RNA MINCR Regulates miR-876-5p/GSPT1 Axis to Aggravate Glioma Progression

Zheng Li1, Xiaoxia Xie2, Xiangyun Fan3

  • 1Department of Neurosurgery, Deyang People's Hospital, Deyang, 618000, Sichuan, China.

Neurochemical Research
|April 26, 2020
PubMed

Insights

Long non-coding RNA MINCR promotes glioma progression by sponging miR-876-5p and up-regulating GSPT1. Silencing MINCR inhibits glioma cell proliferation and migration, suggesting MINCR as a therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Long non-coding RNAs (lncRNAs) play critical roles in glioma development.
  • The specific function and mechanism of lncRNA MINCR in glioma are not well understood.

Purpose of the Study:

  • To investigate the role and underlying mechanism of MINCR in glioma.
  • To explore MINCR as a potential therapeutic target for glioma.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) for gene expression analysis.
  • In vitro and in vivo assays to assess cellular functions.
  • Subcellular fractionation and Fluorescence in situ hybridization (FISH) for localization.
  • Luciferase reporter, RNA pull-down, and RNA immunoprecipitation (RIP) assays for mechanism investigation.

Main Results:

  • MINCR was found to be significantly up-regulated in glioma tissues.
  • Depletion of MINCR inhibited glioma cell proliferation, migration, and invasion.
  • MINCR functions as a competing endogenous RNA (ceRNA) by sponging miR-876-5p, which in turn targets GSPT1.
  • Restoring miR-876 inhibition or GSPT1 up-regulation reversed the effects of MINCR depletion.

Conclusions:

  • MINCR exacerbates glioma cell proliferation and migration through the ceRNA mechanism involving miR-876-5p and GSPT1.
  • MINCR represents a promising novel therapeutic target for glioma treatment.

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