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Published on: June 16, 2023
MicroRNAs in osteosarcoma
Jian Zhang1, Yi-Guo Yan1, Cheng Wang1
1Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China.
Abstract:
Osteosarcoma (OS) is a primary malignant bone tumor with high morbidity that principally emerges in children and adolescents. Presently, the prognosis of OS patients remains poor due to resistance to chemotherapy, highlighting the need for new therapeutic approaches. MicroRNAs (miRNAs), a class of small noncoding RNA molecules, can negatively modulate protein expression at the post-transcriptional level. miRNAs regulate a variety of normal physiologic processes and are involved in tumorigenesis and development of multiple malignancies, including OS. Some miRNAs are differentially expressed in OS tissues, cell lines and serum, and have been shown to correlate with the malignant phenotype and prognosis. These altered miRNAs function as oncogenes or tumor suppressor genes in this process. Moreover, restoration of miRNA expression has shown promise for the treatment of OS. Here, we describe miRNA biochemistry with a focus on expression profile, role and therapeutic potential in OS. A better understanding will facilitate the identification and characterization of novel biomarkers and development of miRNA-targeted therapies.
Insights
Osteosarcoma (OS) treatment needs new approaches due to chemotherapy resistance. MicroRNAs (miRNAs) show promise as therapeutic targets and biomarkers for this bone cancer.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Osteosarcoma (OS) is a primary bone cancer primarily affecting children and adolescents, with poor prognosis linked to chemotherapy resistance.
- MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression, implicated in various cancers, including OS.
- Differential expression of miRNAs in OS tissues and serum suggests their role as oncogenes or tumor suppressors.
Purpose of the Study:
- To review miRNA biochemistry, focusing on their expression profiles, roles in osteosarcoma development, and therapeutic potential.
- To highlight the significance of understanding miRNA alterations for identifying novel biomarkers.
- To explore the development of miRNA-targeted therapies for osteosarcoma.
Main Methods:
- Literature review of miRNA biochemistry and function in osteosarcoma.
- Analysis of miRNA expression profiles in OS tissues, cell lines, and serum.
- Evaluation of the therapeutic potential of miRNA restoration in OS models.
Main Results:
- miRNAs are differentially expressed in OS and influence tumorigenesis.
- Altered miRNAs can act as oncogenes or tumor suppressors in osteosarcoma.
- Restoring miRNA expression demonstrates therapeutic promise for OS treatment.
Conclusions:
- Understanding miRNA expression and function is crucial for osteosarcoma research.
- miRNAs hold potential as diagnostic biomarkers and therapeutic targets for osteosarcoma.
- miRNA-targeted therapies represent a promising avenue for improving OS patient outcomes.
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