Related Experiment Video
Updated: Aug 30, 2025
Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
Potential molecular mechanism in self-renewal is associated with miRNA dysregulation in sacral chordoma - A
Arpad Bozsodi1,2, Beata Scholtz3, Gergo Papp4
1National Center for Spinal Disorders, Buda Health Center, Királyhágó u. 1-3, Budapest, H-1126, Hungary.
Background:
Chordoma, the most frequent malignant primary spinal neoplasm, characterized by a high rate of recurrence, is an orphan disease where the clarification of the molecular oncogenesis would be crucial to developing new, effective therapies. Dysregulated expression of non-coding RNAs, especially microRNAs (miRNA) has a significant role in cancer development.
Methods:
Next-generation RNA sequencing (NGS) was used for the combinatorial analysis of mRNA-miRNA gene expression profiles in sacral chordoma and nucleus pulposus samples. Advanced bioinformatics workflow was applied to the data to predict miRNA-mRNA regulatory networks with altered activity in chordoma.
Results:
A large set of significantly dysregulated miRNAs in chordoma and their differentially expressed target genes have been identified. Several molecular pathways related to tumorigenesis and the modulation of the immune system are predicted to be dysregulated due to aberrant miRNA expression in chordoma. We identified a gene set including key regulators of the Hippo pathway, which is targeted by differently expressed miRNAs, and validated their altered expression by RT-qPCR. These newly identified miRNA/RNA interactions are predicted to have a role in the self-renewal process of chordoma stem cells, which might sustain the high rate of recurrence for this tumor.
Conclusions:
Our results can significantly contribute to the designation of possible targets for the development of anti-chordoma therapies.
Insights
This study identifies key microRNA (miRNA) and mRNA interactions driving chordoma development and recurrence. Understanding these molecular mechanisms offers new therapeutic targets for this rare spinal cancer.
Area of Science:
- Oncology
- Molecular Biology
- Genomics
Background:
- Chordoma is the most common malignant primary spinal tumor, known for frequent recurrence.
- Clarifying molecular oncogenesis is vital for developing effective chordoma therapies.
- Dysregulated non-coding RNA, particularly microRNAs (miRNAs), plays a significant role in cancer development.
Purpose of the Study:
- To investigate the molecular mechanisms of chordoma oncogenesis.
- To identify dysregulated miRNA-mRNA interactions in chordoma.
- To uncover potential therapeutic targets for chordoma.
Main Methods:
- Utilized next-generation RNA sequencing (NGS) for combinatorial mRNA-miRNA gene expression analysis.
- Analyzed sacral chordoma and nucleus pulposus samples.
- Applied advanced bioinformatics to predict miRNA-mRNA regulatory networks.
Main Results:
- Identified a significant set of dysregulated miRNAs and their differentially expressed target genes in chordoma.
- Predicted dysregulation of molecular pathways involved in tumorigenesis and immune modulation.
- Validated altered expression of miRNA-targeted Hippo pathway genes, implicating them in chordoma stem cell self-renewal and recurrence.
Conclusions:
- Newly identified miRNA/RNA interactions may drive chordoma stem cell self-renewal and tumor recurrence.
- Findings contribute to identifying potential therapeutic targets for chordoma treatment.
More Related Videos
12:44Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis
Published on: November 11, 2014
09:40Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
Published on: October 4, 2019
Related Concept Videos
01:22MicroRNAs
02:15Experimental RNAi