| Features: |
| Metal Iron is a vital trace element that plays essential roles in various physiological processes. Its importance stems from its involvement in oxygen transport, energy production, DNA synthesis, and numerous enzymatic reactions. – Iron is a critical component of hemoglobin in red blood cells, enabling the binding and transport of oxygen from the lungs to tissues. – Iron participates in redox reactions due to its ability to alternate between ferrous (Fe²⁺) and ferric (Fe³⁺) states. Tumor cells often require increased iron to support their rapid proliferation and metabolic demands. – Elevated iron availability can promote DNA synthesis, cell division, and tumor growth. • Promotion of Reactive Oxygen Species (ROS) Formation: – Iron’s redox-active nature, while important for normal cell functions, can also lead to the generation of reactive oxygen species via reactions such as the Fenton reaction: Fe²⁺ + H₂O₂ → Fe³⁺ + •OH + OH⁻ – The hydroxyl radicals (•OH) produced are highly reactive and can cause oxidative damage to cellular components (DNA, proteins, lipids). – This oxidative damage may contribute to genomic instability, mutations, and the progression of cancer. Cancer cells often exhibit increased iron dependency, targeting iron metabolism is a strategy that is being explored for cancer therapy. – Approaches include the use of iron chelators to sequester iron and limit its availability to tumor cells, thereby inhibiting their growth. – Alternatively, therapies may aim to exploit iron’s capacity to generate toxic ROS beyond a threshold that cancer cells can manage, leading to selective cell death. |
| Features: |
| Rotary Magnetic field can be generated by a spinning magnet or magnets. Or it can be implemented with 2 or more coils, power with a phase shift between them (90 deg for 2 coil implementation) (60deg for 3 coil implementation) Targets affected are mostly the same as for Magnet fields Main differences - may enhance the EPR effect allowing targeting of drugs to cancer cells - acts as wireless stirrer, especially on magnetic particles(inducing eddy currents in water media) - research for use in nano surgery, and mechanical destruction of cancer cells - continue to highlight ability to raise ROS in cancer cell and lower ROS in normal cells - RMF may be responsible for Ca2+ distribution to pass across the plasma membrane(differental affected for cancer and normal cells) Pathways: - induce ROS production in cancer cells, while decreasing ROS in normal cells. Ca2+ is critical and the Ca2+ balance is increased in cancer cells while decreased in normal cells (example for wound healing) - ROS↑ related: MMP↓(ΔΨm), Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓, Prx, - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : TNF-α↓, IL-6↓, - inhibit Growth/Metastases : TumMeta↓, TumCG↓, MMPs↓, MMP2↓, MMP9↓, IGF-1↓, RhoA↓, NF-κB↓, TGF-β↓, ERK↓ - cause Cell cycle arrest : TumCCA↑, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, ERK↓, - Others: PI3K↓, AKT↓, Wnt↓, AMPK, ERK↓, JNK, - Synergies: < Others(review target notes), Neuroprotective, Cognitive, - Selectivity: Cancer Cells vs Normal Cells |
| 1737- | MFrot, | Fe, | Feature Matching of Microsecond-Pulsed Magnetic Fields Combined with Fe3O4 Particles for Killing A375 Melanoma Cells |
| - | in-vitro, | MB, | A375 |
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