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Updated: May 23, 2026

Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells
Published on: April 7, 2017
The roles of microRNAs in sarcomas
Ruth Drury1, Eldo T Verghese, Thomas A Hughes
1Leeds Institute of Molecular Medicine, University of Leeds, Leeds, UK.
Abstract:
MicroRNAs are a class of small regulatory RNAs that influence the stabilities and translational efficiencies of target mRNAs. They have been implicated in an increasing number of biological processes, including carcinogenesis. A huge body of literature exists documenting up- or down-regulation of specific microRNAs during carcinogenesis and identifying molecular pathways by which these microRNAs influence every aspect of cancer development, including proliferation, angiogenesis, and metastasis. These studies have provided many insights into basic cancer biology as well as allowing identification of novel biomarkers and potential drug targets. However, the vast bulk of this literature concerns solid epithelial tumours, while sarcomas remain relatively under-studied. The purpose of this article is to review the roles of microRNAs in sarcomas and to highlight microRNAs or related molecular pathways that demonstrate consistent roles within individual or across sarcoma subtypes, with a view to identifying the key regulatory molecules. Further insights into sarcoma biology may be particularly valuable since sarcomas represent a tumour group with a particularly poor prognosis and rather limited treatment options.
Insights
MicroRNAs regulate gene expression and are involved in cancer. This review focuses on microRNAs in sarcomas, which are under-studied and have poor prognoses, to identify key regulatory molecules.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- MicroRNAs (miRNAs) are small regulatory RNAs impacting mRNA stability and translation.
- miRNAs play critical roles in biological processes, including carcinogenesis, affecting proliferation, angiogenesis, and metastasis.
- Existing research predominantly focuses on solid epithelial tumors, leaving sarcomas relatively under-studied.
Purpose of the Study:
- To review the roles of microRNAs in sarcomas.
- To identify key microRNAs and molecular pathways consistently involved in sarcoma development across subtypes.
- To provide insights into sarcoma biology for potential biomarker and therapeutic target identification.
Main Methods:
- Literature review of microRNA research in sarcomas.
- Analysis of up- or down-regulation of specific microRNAs in various sarcoma types.
- Identification of molecular pathways influenced by microRNAs in sarcoma development.
Main Results:
- Sarcomas remain relatively under-studied compared to epithelial tumors.
- Consistent roles of specific microRNAs and pathways are being identified within and across sarcoma subtypes.
- MicroRNAs show potential as biomarkers and therapeutic targets for sarcomas.
Conclusions:
- Understanding microRNA roles in sarcomas is crucial due to their poor prognosis and limited treatment options.
- Identifying key regulatory microRNAs can advance sarcoma biology insights.
- Further research into microRNAs may lead to novel diagnostic and therapeutic strategies for sarcoma patients.
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