Pathological Grade-Associated Transcriptome Profiling of lncRNAs and mRNAs in Gliomas.

Area of Science:

• Oncology
• Molecular Biology
• Genomics

Background:

• Glioma is a complex brain tumor with poorly understood molecular underpinnings.
• Long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs) are crucial in cellular processes, but their roles in glioma are not fully elucidated.

Purpose of the Study:

• To investigate the expression profiles of lncRNAs and mRNAs in glioma.
• To identify potential relationships between lncRNAs and mRNAs in glioma pathogenesis.
• To explore the clinical significance of these molecular players in different glioma grades.

Main Methods:

• High-throughput transcriptome sequencing of lncRNAs and mRNAs from normal and glioma tissues (grades II, III, and IV).
• Bioinformatic analyses including Series Test of Cluster (STC), gene co-expression network construction, Gene Ontology (GO), and pathway enrichment analysis.
• Validation of key differentially expressed lncRNAs and mRNAs using quantitative real-time PCR.

Main Results:

• Identified 578 significantly dysregulated lncRNAs and 3,216 dysregulated mRNAs in glioma tissues.
• Discovered distinct expression patterns and clinical significance for specific lncRNAs and mRNAs across glioma grades.
• Constructed three mRNA-lncRNA co-expression networks, revealing intricate regulatory relationships.
• GO and pathway analyses indicated enrichment in tumorigenesis-associated biological processes and signaling pathways.

Conclusions:

• lncRNAs and mRNAs display dynamic differential expression profiles correlating with glioma malignancy.
• These dysregulated lncRNAs and mRNAs are implicated in critical biological processes and pathways central to glioma pathogenesis.
• The findings offer valuable molecular resources and potential therapeutic targets for future glioma research.