Database Query Results : Magnetic Fields, , RPM

MF, Magnetic Fields: Click to Expand ⟱
Features: Therapy
Magnetic Fields can be Static, or pulsed. The most common therapy is a pulsed magnetic field in the uT or mT range.
The main pathways affected are:
Calcium Signaling: -influence the activity of voltage-gated calcium channels.
Oxidative Stress and Reactive Oxygen Species (ROS) Pathways
Heat Shock Proteins (HSPs) and Cellular Stress Responses
Cell Proliferation and Growth Signaling: MAPK/ERK pathway.
Gene Expression and Epigenetic Modifications: NF-κB
Angiogenesis Pathways: VEGF (improving VEGF for normal cells)
PEMF was found to have a 2-fold increase in drug uptake compared to traditional electrochemotherapy in rat melanoma models

Pathways:
- most reports have ROS production increasing in cancer cells , while decreasing in normal cells.
- ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, 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↓, Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓
- inhibit Growth/Metastases : TumMeta↓, TumCG↓, VEGF↓(mostly regulated up in normal cells),
- cause Cell cycle arrest : TumCCA↑,
- inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓,
- inhibits glycolysis /Warburg Effect and ATP depletion : HIF-1α↓, PKM2↓, GLUT1↓, LDH↓, HK2↓, PFKs↓, PDKs↓, ECAR↓, OXPHOS↓, GRP78↑, Glucose↓, GlucoseCon↓
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, FGF↓, PDGF↓, EGFR↓, Integrins↓,
- Others: PI3K↓, AKT↓, STAT↓, Wnt↓, β-catenin↓, ERK↓, JNK, - SREBP (related to cholesterol).
- Synergies: chemo-sensitization, chemoProtective, cytoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Hepatoprotective, CardioProtective,

- Selectivity: Cancer Cells vs Normal Cells


RPM, radical pair mechanism: Click to Expand ⟱
Source:
Type:
The radical pair mechanism is a process that involves the interaction of two radicals (highly reactive molecules with unpaired electrons) and has been found to be sensitive to magnetic fields. In the presence of a magnetic field, the radical pair mechanism can be influenced, leading to changes in the reaction rates and yields.
The magnetic field effect on radical pair reactions can be explained by the following mechanisms:
Spin-correlated radical pairs: In the presence of a magnetic field, the spin-correlated radical pairs can be formed, which can lead to changes in the reaction rates and yields.

Spin relaxation: The magnetic field can influence the spin relaxation of the radicals, leading to changes in the reaction rates and yields.

Magnetic field-induced intersystem crossing: The magnetic field can induce intersystem crossing between the singlet and triplet states, leading to changes in the reaction rates and yields.
Scientific Papers found: Click to Expand⟱
594- MF,  VitC,    Static Magnetic Field Effect on the Fremy's Salt-Ascorbic Acid Chemical Reaction Studied by Continuous-Wave Electron Paramagnetic Resonance
- Analysis, NA, NA
RPM↑,

590- MF,  VitC,    Sub-millitesla magnetic field effects on the recombination reaction of flavin and ascorbic acid radicals
- in-vitro, NA, NA
RPM↑,

592- MF,  VitC,    Alternative radical pairs for cryptochrome-based magnetoreception
RPM↑,

521- MF,    Magnetic field effects in biology from the perspective of the radical pair mechanism
- Analysis, NA, NA
RPM↑,

2244- MF,    Little strokes fell big oaks: The use of weak magnetic fields and reactive oxygen species to fight cancer
- Review, Var, NA
RPM↑, WEMFs affect multiple cellular processes through mechanisms such as the radical pair mechanism (RPM), which alters reactive oxygen species (ROS) levels, mitochondrial function, and glycolysis
Glycolysis∅, WEMF parallel to the magnetic field (does not enchance glycolysis)
ROS↑, WEMF can augment this effect by enhancing mitochondrial respiration, which increases ROS levels within cancer cells. This augmentation makes cancer cells more susceptible to treatment by promoting oxidative stress that can lead to apoptosis
ChemoSen↑, Chemotherapeutic agents, such as doxorubicin, primarily exert their effects by generating ROS to induce cell death. WEMF can augment this effect by enhancing mitochondrial respiration, which increases ROS levels
RadioS↑, Similarly, WEMF can enhance the efficacy of radiation therapy by increasing ROS production and sensitizing cancer cells to radiation-induced DNA damage
selectivity↑, primary advantage of WEMF is its non-invasive, non-ionizing nature, which minimizes collateral damage to healthy tissue.

2245- MF,    Quantum based effects of therapeutic nuclear magnetic resonance persistently reduce glycolysis
- in-vitro, Nor, NIH-3T3
Warburg↓, tNMR might have the potential to counteract the Warburg effect known from many cancer cells which are prone to glycolysis even under aerobic conditions.
Hif1a↓, combined treatment of tNMR and hypoxia (tNMR hypoxia) led to significantly altered HIF-1α protein levels, namely a further overall reduction in protein amounts
*Hif1a∅, Under normoxic conditions we did not find significant differences in Hif-1α mRNA and protein expression
Glycolysis↓, hypoxic tNMR treatment, driving cellular metabolism to a reduced glycolysis while mitochondrial respiration is kept constant even during reoxygenation.
*lactateProd↓, tNMR reduces lactate production and decreases cellular ADP levels under normoxic conditions
*ADP:ATP↓,
Pyruv↓, Intracellular pyruvate, which was as well decreased in hypoxic control cells, appeared to be further decreased after tNMR under hypoxia
ADP:ATP↓, tNMR under hypoxia further decreased the hypoxia induced decrease of the intracellular ADP/ATP ratio
*PPP↓, pentose phosphate pathway (PPP) is throttled after tNMR treatment, while cell proliferation is enhanced
*mt-ROS↑, tNMR under hypoxia increases mitochondrial and extracellular, but reduces cytosolic ROS
*ROS↓, but reduces cytosolic ROS
RPM↑, Because EMFs are known to affect ROS levels via the radical pair mechanism (RPM)
*ECAR↓, tNMR under normoxic conditions reduces the extracellular acidification rate (ECAR)

188- MFrot,  MF,    Spinning magnetic field patterns that cause oncolysis by oxidative stress in glioma cells
- in-vitro, GBM, GBM115 - in-vitro, GBM, DIPG
ROS↑, both GBM and DIPG cells ROS generated by sOMF
SDH↓, Complex II succinate dehydrogenase
eff↓, antioxidant Trolox reverses the cytotoxic effect of sOMF on glioma cells indicating that ROS play a causal role in producing the effect
RPM↑, we hypothesized that the interaction of weak and intermediate strength magnetic fields with the RPM mechanism in the mitochondrial ETC can perturb the electron transfer process (MEP hypothesis) to generate superoxide.
eff↓, We observed that Helmholtz coil did not produce any significant increase in ROS at 2 and 4 h during stimulation or 2 h poststimulation in GBM and DIPG cells
eff↑, oscillating field alone is not sufficient to induce ROS and that the changing angle of the magnetic field axis is also required to achieve this effect.
eff↝, repeated pulse trains rising to and declining from the peak frequency with intervening pauses are sufficient to achieve near maximum level of increase in ROS
eff↝, One spinning magnet or three spinning magnets generate similar cellular ROS levels and the effect of variation of the stimulus off period.
Casp3↑, caspase 3 activation
eff↝, This indicates that the total amount of energy delivered to cancer cells is clearly not the determinant of the potency of stimulation. Instead, it appears that the longer Toff between stimuli of 750 ms in the 4-h stimulation, as opposed to 250 ms in
SOD↓, critical rise in superoxide in two types of human glioma cells (implies SOD capacity exceeded)

593- VitC,  MF,    Protective Effect of Ascorbic Acid on Molecular Behavior Changes of Hemoglobin Induced by Magnetic Field Induced by Magnetic Field
RPM↓, Ascorbic acid adds protective effect from magnetic fields


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 8

Results for Effect on Cancer/Diseased Cells:
ADP:ATP↓,1,   Casp3↑,1,   ChemoSen↑,1,   eff↓,2,   eff↑,1,   eff↝,3,   Glycolysis↓,1,   Glycolysis∅,1,   Hif1a↓,1,   Pyruv↓,1,   RadioS↑,1,   ROS↑,2,   RPM↓,1,   RPM↑,7,   SDH↓,1,   selectivity↑,1,   SOD↓,1,   Warburg↓,1,  
Total Targets: 18

Results for Effect on Normal Cells:
ADP:ATP↓,1,   ECAR↓,1,   Hif1a∅,1,   lactateProd↓,1,   PPP↓,1,   ROS↓,1,   mt-ROS↑,1,  
Total Targets: 7

Scientific Paper Hit Count for: RPM, radical pair mechanism
8 Magnetic Fields
4 Vitamin C (Ascorbic Acid)
1 Magnetic Field Rotating
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:172  Target#:762  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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