Sinusoidal electromagnetic fields accelerate bone regeneration by boosting the multifunctionality of bone marrow mesenchymal stem cells.
This in vitro and rat study evaluated sinusoidal electromagnetic field (EMF) treatment of bone marrow mesenchymal stem cells (BMSCs) seeded on 3D-printed scaffolds for repairing critical-sized calvarial defects. The authors report that EMF-treated cell scaffolds accelerated bone defect repair in rats. Mechanistically, EMFs were reported to increase BMSC responsiveness to BMP signaling by upregulating BMP receptors, activating BMP/Smad-mediated osteogenesis, and improving paracrine functions supporting angiogenesis and osteoimmunomodulation.
Key points
- BMSCs on 3D-printed scaffolds were treated with sinusoidal EMFs in vitro before implantation.
- In a rat calvarial defect model, EMF-treated cell scaffolds were reported to accelerate bone regeneration.
- The authors report EMFs did not directly drive BMSC differentiation in isolation.
- EMF exposure was reported to upregulate specific BMP receptors, increasing sensitivity to BMP cues in the environment.
- Downstream BMP/Smad signaling was implicated in promoting osteogenic differentiation.
- EMF-treated BMSCs were reported to secrete cytokines that better support angiogenesis and osteoimmunomodulation.
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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