> For the complete documentation index, see [llms.txt](https://www.brexatlas.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.brexatlas.org/bre-001/bre-035.md).
# BRE 035
## Rotating Magnetic Fields, Mitochondrial Respiration, and Cancer-Cell Metabolic Collapse
**Clinical Focus:** Glioblastoma, DIPG, Meningioma, and Cancer Metabolism Systems
**Common Focus:** How Magnetic Fields May Disrupt Cancer-Cell Energy Systems
## Source
Sharpe, M. A., Baskin, D. S., Pichumani, K., Ijare, O. B., & Helekar, S. A. (2021).
*Rotating Magnetic Fields Inhibit Mitochondrial Respiration, Promote Oxidative Stress and Produce Loss of Mitochondrial Integrity in Cancer Cells.*
*Frontiers in Oncology, 11, 768758.*
***
## BRS Score
**BRS:** 8.9 / 10\
**STEMD:** S9 / T8 / E9 / M10 / D9\
**External Evidence Level:** Moderate–High experimental mechanistic evidence
### Score Interpretation
BRE-035 receives a strong BRS because it provides experimental mechanistic evidence that spinning oscillating magnetic fields disrupted mitochondrial electron transport, inhibited succinate dehydrogenase activity, increased ROS generation, and triggered mitochondrial permeability transition leading to cancer-cell death.
***
## Entry Summary
BRE-035 asks a major cancer metabolism question:
Can rotating magnetic fields weaken cancer cells by disrupting the mitochondria that help power them?
Mitochondria are often described as the energy centers of the cell. Cancer cells depend on altered metabolism and stress-management systems to survive.
This study found that spinning oscillating magnetic fields, or sOMF, disrupted mitochondrial respiration, promoted oxidative stress, and caused loss of mitochondrial integrity in cancer cells.
In simple language:
Cancer cells need their energy systems to keep working. BRE-035 suggests rotating magnetic fields may interfere with those systems and push cancer cells toward collapse.
***
## What BREXAtlas Found
BREXAtlas identifies this primary mechanism chain:
sOMF\
↓\
Mitochondrial ETC disruption\
↓\
SDH inhibition\
↓\
ROS amplification\
↓\
Mitochondrial permeability transition\
↓\
Loss of mitochondrial integrity\
↓\
Cancer-cell death
A secondary mechanism chain is:
Rotating magnetic fields\
↓\
Radical pair perturbation\
↓\
Electron-spin disruption\
↓\
Altered mitochondrial redox behavior\
↓\
Oxidative stress escalation
This makes BRE-035 one of the most mechanistically important entries in Volume I because it links electromagnetic perturbation directly with mitochondrial metabolism and cancer-cell death.
***
## Questions This BRE Helps Answer
What are mitochondria?
Mitochondria are structures inside cells that help produce energy and regulate stress.
**What BREXAtlas found:**\
BRE-035 supports that cancer-cell mitochondria may be vulnerable to electromagnetic disruption, especially through respiration and redox pathways.
What is SDH?
SDH means succinate dehydrogenase.
It is part of the mitochondrial electron transport system and helps cells process energy.
**What BREXAtlas found:**\
BRE-035 supports that sOMF exposure may inhibit SDH function and disrupt mitochondrial respiration.
What is ROS?
ROS means reactive oxygen species.
These molecules can help cells signal under normal conditions, but too much ROS can damage cells.
**What BREXAtlas found:**\
BRE-035 supports that rotating magnetic fields may increase ROS and escalate oxidative stress in cancer-cell mitochondria.
Why does this matter if cancer cells are not actively dividing?
Many TTFields entries focus on dividing cancer cells.
BRE-035 is important because the extraction notes that non-dividing GBM cells were susceptible to sOMF-induced death.
This suggests a possible vulnerability beyond mitosis: cancer-cell metabolism.
***
## Study Classification
| Category | Classification |
| ----------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| Study Type | Experimental mitochondrial / electromagnetic systems study |
| Tissue Category | Glioblastoma, DIPG, meningioma, cancer metabolism systems |
| Models | GBM primary cells, DIPG cells, meningioma cells, rat liver mitochondria, rat brain mitochondria, normal human astrocytes |
| Exposure Type | Rotating magnetic fields / spinning oscillating magnetic fields |
| Field Strength | Approximately 80 mT |
| Frequency System | Approximately 50–350 Hz frequency sweeps |
| Cycling | Intermittent on/off cycling |
| Direct TTFields Evidence | No |
| Direct Mitochondrial Evidence | Yes |
| Direct Cancer Metabolism Evidence | Yes |
| Suitable for Mitochondrial Index | Yes |
| Suitable for ROS / Oxidative Stress Index | Yes |
| Suitable for Cancer Metabolism Index | Yes |
***
## Cell Lines / Models
BRE-035 identified:
* GBM primary cells
* DIPG cells
* Meningioma cells
* Rat liver mitochondria
* Rat brain mitochondria
* Normal human astrocytes
This model range matters because the study connects cancer-cell response with mitochondrial systems across brain cancer and metabolism-related models.
***
## Mechanisms
**MEC-031: Mitochondrial Electrical Stress**
sOMF exposure disrupted mitochondrial respiration and integrity.
**MEC-032: ROS-Electromagnetic Coupling**
Rotating magnetic fields promoted ROS generation and oxidative stress escalation.
**MEC-044: SDH Electromagnetic Disruption**
Spinning magnetic-field exposure may inhibit succinate dehydrogenase function and disrupt mitochondrial respiration through redox perturbation.
**MEC-045: Radical Pair Mitochondrial Perturbation**
Electromagnetic field exposure may alter mitochondrial electron-transfer behavior through radical-pair-mediated spin-state disruption.
**MEC-046: Mitochondrial Permeability Transition Escalation**
sOMF-induced mitochondrial stress may trigger permeability transition and rapid mitochondrial integrity collapse in tumor cells.
**MEC-091: Non-Dividing Cancer-Cell Metabolic Vulnerability**
BRE-035 suggests that even non-dividing cancer cells may remain vulnerable when mitochondrial respiration is disrupted.
***
## Discoveries
**DISC-013: ROS and Electromagnetic Stress Integration**
BRE-035 strongly supports the discovery that electromagnetic perturbation can interact with oxidative stress and mitochondrial integrity.
**DISC-020: Electromagnetic Mitochondrial Respiration Disruption**
BREXAtlas identifies this as a major discovery:
Rotating magnetic-field studies suggest electromagnetic perturbation may directly disrupt mitochondrial electron transport and oxidative metabolism in cancer systems.
**DISC-022: Non-Mitotic Bioelectric Vulnerability**
BRE-035 adds a major discovery branch:
Cancer vulnerability may not depend only on cell division. Metabolic and mitochondrial systems may provide another bioelectric response pathway.
***
## Connections to Other BRE Entries
### Connected to BRE-024
BRE-024 connected ELF-EMF exposure with calcium signaling, ROS generation, mitochondrial stress, and altered breast cancer-cell viability.
BRE-035 strengthens the mitochondrial side of that pathway with direct respiration and SDH disruption.
### Connected to BRE-033
BRE-033 showed TTFields increased ROS generation and apoptosis in liver cancer cells.
BRE-035 provides deeper mechanistic support for ROS-electromagnetic coupling through mitochondrial disruption.
### Connected to BRE-034
BRE-034 showed TTFields plus sorafenib increased stress signaling, autophagy, ER stress, and apoptosis in liver cancer.
BRE-035 adds a mitochondrial metabolism explanation for how electromagnetic stress may push cells toward collapse.
### Connected to BRE-014 through BRE-016
BRE-014 through BRE-016 focused on mitotic and cytokinetic vulnerability.
BRE-035 expands the encyclopedia beyond mitosis by showing mitochondrial vulnerability as a separate pathway.
### Connected to BRE-031
BRE-031 described bioelectric dysregulation across tumor systems.
BRE-035 adds metabolic and mitochondrial systems to the broader bioelectric oncology framework.
***
## Research Gaps Identified
**RG-172: Radical-Pair Biological Validation Gap**
The radical-pair mechanism remains an emerging hypothesis and requires broader validation.
**RG-173: SDH Electromagnetic Specificity Gap**
More work is needed to confirm how specifically sOMF exposure affects SDH across cancer types.
**RG-174: Mitochondrial-Field Dosimetry Gap**
More standardized dosimetry is needed for mitochondrial electromagnetic exposure studies.
**RG-175: Cancer-Metabolism Electromagnetic Selectivity Gap**
More comparison is needed between cancer-cell mitochondria and normal-cell mitochondria.
**RG-176: Mitochondrial Spin-State Modeling Gap**
Further modeling is needed to explain how magnetic-field exposure may alter electron-transfer behavior.
***
## Scientific Caution
The proposed radical-pair and mitochondrial-electron-transport mechanisms remain emerging mechanistic hypotheses and require broader independent validation across additional tumor systems and exposure architectures.
***
## Why This Entry Matters
For researchers, BRE-035 is important because it identifies mitochondria as a major electromagnetic response system.
For patients and families, the simple idea is this:
Cancer cells need energy systems to survive. This study suggests certain rotating magnetic fields may damage those energy systems and cause cancer cells to die.
This is not proof of a clinical treatment. It is strong experimental evidence that cancer metabolism may be a bioelectric vulnerability.
***
## Entry Conclusion
BRE-035 expands BREXAtlas beyond cell division and drug combination pathways.
Earlier TTFields entries focused heavily on mitosis, cytokinesis, DNA repair, and treatment sensitization.
BRE-035 shows another possible pathway: electromagnetic disruption of mitochondrial respiration and oxidative metabolism.
The central question emerging from this entry is:
Can cancer cells be weakened by targeting mitochondrial electron transport with controlled magnetic-field exposure?
For BREXAtlas, BRE-035 is a major cancer metabolism entry because it connects electromagnetic fields, mitochondrial respiration, ROS, SDH, radical-pair biology, and cancer-cell death.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://www.brexatlas.org/bre-001/bre-035.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.