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Updated: Oct 10, 2025
A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders
Published on: June 8, 2014
MicroRNA-425-5p modulates osteoporosis by targeting annexin A2
Guanghua Chen1, Guizhi Huang2, Han Lin3
1Department of Orthopedics, Affiliated Hospital of Guangdong Medical University, NO.57, Renmin Dadao, Xiashan District, Zhanjiang, 524001, Guangdong Province, China. guanghuachenzhan@163.com.
Background:
Studies have shown that the decrease of osteogenic differentiation of bone marrow mesenchymal stem cells (MSC) is an important mechanism of osteoporosis. The object of this study was to explore the role and mechanism of microRNA miR-425-5p in the differentiation of MSC.
Methods:
The expression of miR-425-5p in MSC was detected by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). Cell proliferation, cell cycle and apoptosis were detected by CCK-8 colorimetry and flow cytometry. The expression of TNF were detected by ELISA.
Results:
Our data show that MiR-425-5p could modulate TNF-induced cell apoptosis, proliferation, and differentiation. ANXA2 is also the target of miR-425-5p and ANXA2 was involved in TNF-induced MSC cell apoptosis, proliferation, and differentiation. In addition, MiR-425-5p enhanced osteoporosis in mice.
Conclusion:
MiR-425-5p might serve as a potential therapeutic target for the treatment of osteoporosis.
Insights
MicroRNA miR-425-5p influences bone marrow mesenchymal stem cell (MSC) differentiation and apoptosis. This microRNA may offer a new therapeutic target for treating osteoporosis.
Area of Science:
- Stem cell biology
- Molecular biology
- Osteoporosis research
Background:
- Decreased osteogenic differentiation of bone marrow mesenchymal stem cells (MSCs) is a key mechanism in osteoporosis.
- Understanding the regulatory mechanisms of MSC differentiation is crucial for osteoporosis treatment.
Purpose of the Study:
- To investigate the role of microRNA miR-425-5p in MSC differentiation.
- To elucidate the mechanism by which miR-425-5p affects MSCs.
Main Methods:
- Quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) for miR-425-5p expression.
- CCK-8 colorimetry and flow cytometry for cell proliferation, cell cycle, and apoptosis.
- Enzyme-linked immunosorbent assay (ELISA) for TNF expression.
Main Results:
- MiR-425-5p modulates TNF-induced apoptosis, proliferation, and differentiation in MSCs.
- ANXA2 is identified as a target of miR-425-5p, involved in TNF-induced MSC responses.
- MiR-425-5p was found to exacerbate osteoporosis in a mouse model.
Conclusions:
- MiR-425-5p plays a significant role in regulating MSC differentiation and apoptosis.
- MiR-425-5p may represent a promising therapeutic target for osteoporosis treatment.
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