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A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders
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Pulsed electromagnetic fields inhibit human osteoclast formation and gene expression via osteoblasts
Zhiming He1, Nagarajan Selvamurugan2, Johanna Warshaw1
1Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA.
Bone
|October 3, 2017
Summary
Pulsed electromagnetic fields (PEMF) inhibit osteoclast formation, potentially aiding bone mass maintenance in osteoporosis. This therapy shows promise for treating bone conditions by influencing bone cell activity.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Orthopedics
Background:
- Pulsed electromagnetic fields (PEMFs) are known to promote fracture healing.
- Previous studies showed PEMF stimulates osteoblastic cells.
- The effect of PEMF on osteoclast formation requires further investigation.
Purpose of the Study:
- To investigate the effects of PEMF on human bone marrow macrophages (hBMMs) differentiated into osteoclasts.
- To analyze gene expression changes in response to PEMF treatment.
Main Methods:
- Human bone marrow macrophages (hBMMs) from younger and older women were differentiated into osteoclasts.
- Cells were treated with Pulsed Electromagnetic Fields (PEMF).
- RNA sequencing (RNAseq) was used to analyze gene expression.
Main Results:
- PEMF demonstrated significant inhibitory effects on osteoclast formation in both younger and older women.
- Gene expression analysis revealed significant changes, particularly in cells from older women.
- Upregulated genes included those related to mesenchymal/osteoblastic cells, TGF-β signaling, extracellular matrix proteins, RANKL, and osteoprotegerin.
Conclusions:
- PEMF inhibits osteoclast formation, possibly through an action on osteoblasts.
- PEMF may be a valuable therapeutic option for maintaining bone mass in osteoporosis patients.
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