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Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
Dissection of miRNA-miRNA interaction in esophageal squamous cell carcinoma
Bingli Wu1, Chunquan Li, Pixian Zhang
1College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China ; Department of Biochemistry and Molecular Biology, The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China.
Abstract:
The relationships between miRNAs and their regulatory influences in esophageal carcinoma remain largely unknown. Accumulated evidence suggests that delineation of subpathways within an entire pathway can underlie complex diseases. To analyze the regulation of differentially expressed miRNAs in subpathways of esophageal squamous cell carcinoma (ESCC), we constructed bipartite miRNA and subpathway networks to determine miRNA regulatory influences on subpathways. The miRNA-subpathway network indicated that miRNAs regulate numerous subpathways. Two principal biological networks were derived from the miRNA-subpathway network by the hypergeometric test. This miRNA-miRNA network revealed the co-regulation of subpathways between the upregulated and downregulated miRNAs. Subpathway-subpathway networks characterized scale free, small world, and modular architecture. K-clique analysis revealed co-regulation of subpathways between certain downregulated and upregulated miRNAs. When ESCC patients were grouped according to their expression levels of paired upregulation of miR-31 and downregulation of miR-338-3p, survival time analysis revealed a significant difference based on miR-31-miR-338-3p interaction. These findings can facilitate the understanding of the biological meaning of miRNA-miRNA interactions with either the same or opposite expression trend.
Insights
This study reveals how microRNAs (miRNAs) regulate pathways in esophageal squamous cell carcinoma (ESCC). Specific miRNA interactions, like miR-31 and miR-338-3p, significantly impact patient survival, offering new insights into ESCC.
Area of Science:
- Oncology
- Molecular Biology
- Bioinformatics
Background:
- The regulatory roles of microRNAs (miRNAs) in esophageal carcinoma are not well understood.
- Delineating pathway subpathways is crucial for understanding complex diseases like esophageal squamous cell carcinoma (ESCC).
Purpose of the Study:
- To analyze the regulatory influences of differentially expressed miRNAs on subpathways in ESCC.
- To construct networks to identify miRNA-subpathway and miRNA-miRNA interactions.
Main Methods:
- Construction of bipartite miRNA and subpathway networks.
- Application of hypergeometric tests to derive biological networks.
- Analysis of miRNA-miRNA and subpathway-subpathway network architectures.
- K-clique analysis for miRNA co-regulation.
- Survival time analysis based on specific miRNA expression levels.
Main Results:
- miRNAs were found to regulate numerous subpathways in ESCC.
- A miRNA-miRNA network revealed co-regulation patterns between up- and downregulated miRNAs.
- Subpathway networks exhibited scale-free, small-world, and modular properties.
- K-clique analysis identified co-regulation of subpathways by specific miRNA pairs.
- A significant difference in survival time was observed in ESCC patients based on the interaction between upregulated miR-31 and downregulated miR-338-3p.
Conclusions:
- The study elucidates miRNA regulatory influences on subpathways in ESCC.
- Identified miRNA-miRNA interactions, particularly the miR-31/miR-338-3p pair, have prognostic implications for ESCC patients.
- Findings enhance the understanding of miRNA-miRNA interactions in disease pathogenesis.
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