TABLE V.
Effects of SMFs on stem cells or tissues. Dental pulp stem cells (DPSCs); human umbilical artery smooth muscle cells (hUASMCs); mesenchymal stem cells (MSCs); adipose-derived stem cells (ASCs); bone marrow mesenchymal stem cells (BMSCs); dental pulp cells (DPCs); adipose-derived mesenchymal stem cells (AdMSCs); Schmidtea mediterranea (CIW4); and N/A, not available.
| Objects | Magnetic flux density | Magnetic field direction | Exposure time | Effects on cell proliferation and differentiation | Effects | References | |
|---|---|---|---|---|---|---|---|
| Humans | DPSCs | 1 mT | N/A | 24 h | Promotion | Induction of MAPK pathway-regulated proliferation, migration, osteogenic/dental differentiation and mineralization of DPSCs | 65 |
| 1, 2, and 4 mT | Rearranged the actin filaments, effectively induced DPSCs odontogenesis | 7 | |||||
| hUASMCs | 5 mT | 48 h | Inhibition | Decreased the proliferation, migration, and adhesion potential | 61 | ||
| MSCs | 24 mT | Parallel | 24, 36, 48, 60, and 72 h | Promotion | Influenced on alignment and proliferation rate and induction of mRNA expression of Sox-2, Nanong and Oct-4 genes | 72 | |
| Adult skin fibroblasts | 35–120 mT | Upward and downward | 14 days | Inhibition | Reduced the initial attachment and subsequent growth | 79 | |
| WI-38 | |||||||
| Satellite cells | 80 mT | Upward | 21 days | Promotion | Increased myotube formation | 62 | |
| MG63 osteoblast-like cells | 100, 250, and 400 mT | 24, 48, and 72 h | Inhibition | Increased ALP activity and extracellular matrix release, inhibited cell proliferation | 84 | ||
| MSCs | ∼140 mT | Perpendicular | 6, 12, 24, 48, and 72 h | Promotion | Promoted MSCs proliferation and activates the expression of transcription factors that regulate T-type calcium channels and mediated MSCs proliferation via the MAPK signaling pathway | 73 | |
| DPSCs | 400 mT | N/A | 2 days | Affected the cell membrane of DPSC, activated intracellular calcium ions and increased cell proliferation | 66 | ||
| Upward | 20 days | Activation of p38 MAPK-related pathway enhanced DPSC migration and dentinogenesis | 67 | ||||
| ASCs | 500 mT | N/A | 7 days | Enhanced the viability and proliferation rate | 6 | ||
| MSCs | 600 mT | 24 h | No effect | The migration capacity, viability, proliferation rate and the chondrogenic differentiation capacity were not affected | 76 | ||
| 1.44–1.45 T | 24 h/day, 5 days/week, 3 weeks | No enhancement of cartilage formation in cellular slices | 77 | ||||
| CD34+ | 1.5, 3 T | Horizontal | 72 h | Inhibition | GMF exposure did not affect cell proliferation | 81 | |
| Lung fibroblasts Hel 299 | 3 T | N/A | 2 h | No effect | Had no effect on clonogenic capacity, proliferation or cell cycle | 82 | |
| CD34+ | 10 T | N/A | 4 and 16 h | Promotion | Altered gene expression, enhanced MEP differentiation and/or promoted proliferation of bipotent MEP | 83 | |
| Rats | Satellite cells | 60, 120, 160, and 200 μT | 7 days | Accelerated skeletal muscle cell development, led to multinucleated hypertrophic myotubes formation and intracellular calcium ion concentration increase | 59 | ||
| BMSCs | 4 mT | 96 h | Exaggerated the differentiation potential of BMSCs to PGCs | 69 | |||
| 4, 7, and 15 mT | 24, 48, 72, and 96 h | Inhibition | Cell survival and proliferation rates were reduced, and apoptosis occurred in the cells | 70 | |||
| 15 mT | 5 h | No effect | No effect | 71 | |||
| L6 | ∼80 mT | Upward | 5 days | Promotion | Promoted myogenic differentiation and hypertrophy, and counteracted the effects of TNF on myogenesis | 63 | |
| DPCs | 290 mT | 9 days | Accelerated the osteogenic differentiation and mineralization | 68 | |||
| ASCs | 500 mT | N/A | 7 days | Inhibition | Inhibition of ASCs viability, proliferation, cytokine secretion, lipogenesis and osteogenic differentiation without causing DNA damage | 74 | |
| Mice | Flk-1+ | <5 mT | 1 h/day, 6 days | Promotion | Enhanced cardiomyogenesis | 60 | |
| Whole animal | ∼100– 200 mT | Upward and downward | 3 weeks | Inhibition | Inhibited DNA synthesis and regeneration in hepatocytes | 80 | |
| C2C12 | 200 mT | Alternating magnetic poles | 48 h | Decreased the growth of cultured myoblast C2C12 cells | 64 | ||
| Canines and equines | AdMSCs | 500 mT | Upward | 24 and 168 h | Promotion | Canine AdMSCs significantly reduced proliferation rate, whereas the proliferation activity of equine AdMSCs was enhanced | 75 |
| CIW4 | <1 mT | N/A | 72 h | Altered stem cell-mediated growth | 78 | ||