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Author Spotlight: A Computational Pipeline for Analyzing Chimeric Noncoding RNA-Target RNA Interactions in High-Throughput Sequencing Data
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Author Spotlight: A Computational Pipeline for Analyzing Chimeric Noncoding RNA-Target RNA Interactions in High-Throughput Sequencing Data

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Long noncoding RNA HAS2-AS1 promotes tumor progression in glioblastoma via functioning as a competing endogenous RNA

Liqun Zhang1, Hong Wang1, Meijie Xu1,2

  • 1Department of Neurology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.

Journal of Cellular Biochemistry
|August 7, 2019
PubMed

Insights

Long noncoding RNA HAS2-AS1 is elevated in glioblastoma multiforme (GBM), promoting tumor growth. Targeting HAS2-AS1 offers a potential therapeutic strategy for this aggressive brain cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Glioblastoma multiforme (GBM) is an aggressive brain tumor with limited treatment options.
  • Long noncoding RNAs (lncRNAs) play crucial roles in various diseases, including GBM, but their specific functions require further elucidation.
  • Understanding the molecular mechanisms of lncRNAs in GBM is essential for developing novel therapeutic strategies.

Purpose of the Study:

  • To investigate the biological function and molecular mechanism of the lncRNA HAS2-AS1 in glioblastoma multiforme (GBM).
  • To determine the clinical significance of HAS2-AS1 in glioma patients.
  • To explore the regulatory pathways involving HAS2-AS1 in GBM progression.

Main Methods:

  • Expression analysis of HAS2-AS1 in glioma tissues and correlation with patient prognosis.
  • In vitro and in vivo experiments to assess the effect of HAS2-AS1 knockdown on GBM cell migration and invasion.
  • Investigation of the transcriptional regulation of HAS2-AS1 by STAT1.
  • Analysis of the interaction between HAS2-AS1, miR-608, and PRPS1.

Main Results:

  • HAS2-AS1 expression is significantly upregulated in glioma tissues and associated with poorer patient prognosis.
  • Downregulation of HAS2-AS1 inhibits GBM cell migration and invasion both in vitro and in vivo.
  • The transcription factor STAT1 directly binds to the promoter region of HAS2-AS1, increasing its expression.
  • HAS2-AS1 acts as a molecular sponge for miR-608, thereby regulating PRPS1 expression.

Conclusions:

  • HAS2-AS1 functions as an oncogene in GBM by promoting tumor cell migration and invasion.
  • The STAT1/HAS2-AS1/miR-608/PRPS1 axis represents a key regulatory pathway in GBM.
  • HAS2-AS1 is a potential therapeutic target for the treatment of glioblastoma multiforme.
Keywords:
HAS2-AS1competing endogenous RNAgloblastoma multiformetumorigenesis

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