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Updated: Nov 6, 2025

Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
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Circular RNA circitga7 accelerates glioma progression via miR-34a-5p/VEGFA axis

Ling Qi1,2, Weiyao Wang1,2, Guifang Zhao1,3

  • 1The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan 511518, Guangdong, China.

Aging
|May 7, 2021
PubMed

Insights

Circular RNAs (circRNAs) regulate glioma development. This study found circITGA7 promotes glioma cell proliferation and metastasis by sponging miR-34a-5p, impacting the VEGFA pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Circular RNAs (circRNAs) are noncoding RNAs implicated in tumor progression.
  • The specific role of circRNAs in glioma development remains largely undefined.
  • Glioma is a primary brain tumor with significant mortality.

Purpose of the Study:

  • To investigate the role of circRNAs in glioma.
  • To elucidate the mechanism by which circRNAs regulate glioma cell behavior.
  • To identify potential therapeutic targets for glioma treatment.

Main Methods:

  • Quantitative real-time PCR to measure circRNA expression.
  • Cell proliferation and metastasis assays in glioma cell lines.
  • Dual-luciferase reporter assay to confirm molecular interactions.

Main Results:

  • circITGA7 expression was significantly upregulated in glioma tissues and cells.
  • Knockdown of circITGA7 inhibited glioma cell proliferation and metastasis.
  • circITGA7 functions as a molecular sponge for miR-34a-5p, regulating VEGFA.

Conclusions:

  • circITGA7 promotes glioma progression by modulating the miR-34a-5p/VEGFA pathway.
  • The circITGA7/miR-34a-5p/VEGFA axis represents a novel regulatory mechanism in glioma.
  • circITGA7 is a potential therapeutic target for glioma.
Keywords:
VEGFAcircular RNAgliomainvasionmiR-34a-5p

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