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Updated: Apr 13, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
Review of microRNA in osteosarcoma and chondrosarcoma
Le Chang1, Swati Shrestha, Greg LaChaud
1Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Ave., 13-145 CHS, Los Angeles, CA, 90095, USA.
Abstract:
MicroRNAs (miRNAs) are small noncoding RNAs, which play a complex role in posttranscriptional gene expression and can theoretically be used as a diagnostic or prognostic tool, or therapeutic target for neoplasia. Despite advances in the diagnosis and treatment of skeletal sarcomas, including osteosarcoma and chondrosarcoma, much remains unknown regarding their underpinning molecular mechanisms. Given the recent increasing knowledge base of miRNA roles in neoplasia, both as oncogenes and tumor suppressor genes, this review will focus on the available literature regarding the expression profiles and potential roles of miRNA in skeletal sarcomas. Although this is an emerging field, miRNA profiling may be of use in clarifying competing diagnoses of skeletal sarcomas and possibly indicate patient risk of resistance to traditional chemotherapeutic agents. While detecting and targeting miRNAs is currently limited to experimental investigations, miRNA may be utilized for future clinical management of skeletal sarcomas.
Insights
MicroRNAs (miRNAs) are small noncoding RNAs with potential roles in skeletal sarcomas. miRNA profiling may aid diagnosis, predict chemotherapy resistance, and guide future sarcoma treatment.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression.
- Skeletal sarcomas, including osteosarcoma and chondrosarcoma, have complex molecular mechanisms.
- miRNAs are increasingly recognized for their roles as oncogenes and tumor suppressors in neoplasia.
Purpose of the Study:
- To review the literature on miRNA expression profiles in skeletal sarcomas.
- To explore the potential roles of miRNAs in the molecular pathogenesis of these cancers.
- To discuss the diagnostic, prognostic, and therapeutic implications of miRNAs in skeletal sarcomas.
Main Methods:
- Literature review of studies investigating miRNA expression in skeletal sarcomas.
- Analysis of miRNA roles as oncogenes and tumor suppressors.
- Discussion of current and future clinical applications of miRNA research.
Main Results:
- Emerging evidence suggests distinct miRNA expression profiles in skeletal sarcomas.
- miRNAs may serve as biomarkers for diagnosis and prognosis.
- miRNA dysregulation is implicated in sarcoma development and progression.
Conclusions:
- miRNA profiling shows promise for clarifying differential diagnoses of skeletal sarcomas.
- miRNAs could predict patient response to chemotherapy.
- Targeting miRNAs represents a potential future therapeutic strategy for skeletal sarcomas.
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