1. Effect of High Static Magnetic Fields on Biological Activities and Iron Metabolism in MLO-Y4 Osteocyte-like Cells.
- Author
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Yang J, Zhang G, Li Q, Tang Q, Feng Y, Shang P, and Zeng Y
- Subjects
- Animals, Apoptosis radiation effects, Cell Survival radiation effects, Cytoskeleton genetics, Cytoskeleton metabolism, Cytoskeleton radiation effects, Gene Expression Regulation radiation effects, Iron radiation effects, Magnetic Fields adverse effects, Mice, Microtubules genetics, Microtubules radiation effects, Osteoblasts metabolism, Osteoblasts radiation effects, Osteoclasts metabolism, Osteoclasts radiation effects, Osteocytes metabolism, RAW 264.7 Cells, Apoptosis genetics, Cell Survival genetics, Iron metabolism, Osteocytes radiation effects
- Abstract
There are numerous studies that investigate the effects of static magnetic fields (SMFs) on osteoblasts and osteoclasts. However, although osteocytes are the most abundant cell type in bone tissue, there are few studies on the biological effects of osteocytes under magnetic fields. Iron is a necessary microelement that is involved in numerous life activities in cells. Studies have shown that high static magnetic fields (HiSMF) can regulate cellular iron metabolism. To illustrate the effect of HiSMF on activities of osteocytes, and whether iron is involved in this process, HiSMF of 16 tesla (T) was used, and the changes in cellular morphology, cytoskeleton, function-related protein expression, secretion of various cytokines, and iron metabolism in osteocytes under HiSMF were studied. In addition, the biological effects of HiSMF combined with iron preparation and iron chelator on osteocytes were also investigated. The results showed that HiSMF promoted cellular viability, decreased apoptosis, increased the fractal dimension of the cytoskeleton, altered the secretion of cytokines, and increased iron levels in osteocytes. Moreover, it was found that the biological effects of osteocytes under HiSMF are attenuated or enhanced by treatment with a certain concentration of iron. These data suggest that HiSMF-regulated cellular iron metabolism may be involved in altering the biological effects of osteocytes under HiSMF exposure.
- Published
- 2021
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