> 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-026.md).
# BRE 026
## Membrane Potential and Cancer Progression
**Clinical Focus:** Multi-Tissue Oncology / Breast Carcinoma
**Common Focus:** How Abnormal Cell Voltage May Support Cancer Growth and Spread
## Source
Yang, M., & Brackenbury, W. J. (2013).
*Membrane potential and cancer progression.*
*Frontiers in Physiology, 4*, 185.
***
## BRS Score
**BRS:** 8.5 / 10\
**STEMD:** S10 / T8 / E7 / M9 / D9\
**External Evidence Level:** Moderate–High review-supported bioelectric systems evidence
## Score Interpretation
BRE-026 receives a strong BRS because it provides a systems-level framework for understanding cancer progression through membrane potential, ion-channel signaling, bioelectric polarity, proliferation, migration, invasion, and metastasis. It is not a single experimental exposure study, so its evidence level is review-supported rather than primary experimental.
***
## Entry Summary
BRE-026 asks a foundational question:
Can abnormal cell voltage help explain how cancer grows, moves, and spreads?
This review argues that cancer progression is associated with altered membrane-potential states and ion-channel activity.
In simple language:
Cells have electrical states. Cancer cells may use abnormal electrical states to support growth, movement, invasion, and spread.
BREXAtlas identifies BRE-026 as a major bioelectric systems anchor because it connects cell voltage to cancer behavior across tissues.
***
## What BREXAtlas Found
BREXAtlas identifies this mechanism chain:
* Membrane depolarization
* ↓
* Voltage-gated ion-channel activation
* ↓
* Altered cellular signaling
* ↓
* Enhanced proliferation / migration
* ↓
* Tumor progression
A second systems chain is:
* Bioelectric dysregulation
* ↓
* Altered tissue organization
* ↓
* Abnormal polarity signaling
* ↓
* Metastatic behavior
* ↓
* Systems-level tumor instability
This makes BRE-026 essential because it helps explain why bioelectric oncology is not only about applying fields from outside the body. It is also about understanding the electrical identity of the cancer cell itself.
***
## Questions This BRE Helps Answer
What does membrane potential have to do with cancer?
Membrane potential is the electrical difference across a cell membrane.
**What BREXAtlas found:**\
BRE-026 supports that depolarized membrane states may support proliferation and migration, which are two behaviors cancer cells need in order to grow and spread.
Why do ion channels matter?
Ion channels control the movement of charged particles across the cell membrane.
When ion-channel signaling changes, cell behavior can change.
**What BREXAtlas found:**\
BRE-026 supports that ion-channel activity contributes to tumor-cell signaling behavior and may influence progression.
Is this only about breast cancer?
**What BREXAtlas found:**\
No.
BRE-026 is a multi-tissue oncology review, but it is especially important for the breast cancer section because it directly supports the membrane-potential and ion-channel pathway introduced in BRE-023.
***
## Study Classification
| Category | Classification |
| ------------------------------------- | --------------------------------------------------------------- |
| Study Type | Bioelectric systems review / membrane-potential oncology review |
| Tissue Category | Multi-tissue oncology; breast carcinoma |
| Common Cancer Name | Multiple cancers / breast cancer relevance |
| Primary Focus | Membrane potential and cancer progression |
| Direct TTFields Evidence | No |
| Direct EMF Exposure Evidence | No |
| Direct Bioelectric Framework Evidence | Yes |
| Suitable for Mechanism Index | Yes |
| Suitable for Systems Index | Yes |
| Suitable for Breast Cancer Index | Yes |
***
## Mechanisms
**MEC-026: Membrane Potential Dysregulation**
Cancer progression may be associated with abnormal membrane-potential states.
**MEC-027: Voltage-Gated Ion Channel Activation**
Ion-channel activity may alter intracellular signaling and support tumor behavior.
**MEC-029: Bioelectric Polarity Regulation**
Bioelectric polarity may influence tissue organization and cancer progression.
**MEC-030: Ion-Channel Oncogenic Signaling**
Ion-channel signaling may contribute to proliferation, migration, invasion, and metastasis.
**MEC-072: Migration-Associated Bioelectricity**
Bioelectric signals may influence the ability of cancer cells to move.
**MEC-073: Metastatic Bioelectric Instability**
Altered membrane potential and polarity may contribute to metastatic behavior.
***
## Discoveries
**DISC-011: Membrane Depolarization and Tumor Proliferation**
BRE-026 supports the discovery that membrane depolarization may be associated with tumor-cell proliferation and migration.
**DISC-015: Bioelectric Systems Oncology**
BRE-026 strengthens a major BREXAtlas discovery:
Cancer can be studied as a bioelectric systems problem where membrane voltage, ion channels, polarity, tissue organization, and tumor behavior interact.
***
## Connections to Other BRE Entries
**Connected to BRE-023**
BRE-023 experimentally connected breast cancer cells with altered membrane-potential behavior.
BRE-026 provides the broader systems framework explaining why membrane potential may matter across cancer progression.
**Connected to BRE-024**
BRE-024 connected electromagnetic exposure with calcium signaling disruption, ROS generation, and mitochondrial stress.
BRE-026 helps explain why ion-channel and membrane-potential changes may intersect with calcium-related vulnerability.
**Connected to BRE-025**
BRE-025 focused on tumor vascularity and tumor-environment support.
BRE-026 adds that cancer progression also includes internal bioelectric behavior, migration, invasion, and metastatic instability.
**Connected to BRE-008**
BRE-008 framed bioelectricity as important in development, regeneration, and cancer.
BRE-026 provides oncology-specific support for that broader concept.
**Connected to BRE-012**
BRE-012 described cancer as a complex adaptive system.
BRE-026 identifies membrane voltage and ion-channel signaling as one systems layer within that adaptive cancer network.
***
## Research Gaps Identified
**RG-127: Membrane Voltage Quantification Gap**
More standardized methods are needed to measure membrane potential across cancer types and models.
**RG-128: Ion-Channel Specificity Gap**
More research is needed to determine which ion channels are most important in each cancer type.
**RG-129: Bioelectric Systems Integration Gap**
More work is needed to connect membrane voltage, ion-channel signaling, tumor microenvironment, and treatment response.
**RG-130: Metastasis Validation Gap**
More direct experimental validation is needed to determine how membrane-potential states contribute to metastatic behavior.
**RG-131: Therapeutic Targeting Gap**
More research is needed to determine whether membrane-potential or ion-channel manipulation can be safely translated into cancer therapy.
***
## Scientific Caution
BRE-026 provides systems-level bioelectric interpretation and should be paired with experimental studies for direct mechanistic validation.
***
## Why This Entry Matters
For researchers, BRE-026 provides the conceptual map for studying cancer as an electrical-signaling disease, not only a genetic disease.
For patients and families, the key idea is simple:
Cancer cells may behave differently because their electrical state is different.
That abnormal electrical state may help cancer grow, move, and spread. Understanding it could help researchers discover new ways to weaken cancer.
***
## Entry Conclusion
BRE-026 is a central systems anchor in the BREXAtlas Encyclopedia.
BRE-023 showed experimental breast cancer evidence for altered membrane potential.
BRE-026 explains why that matters across cancer progression.
The central question emerging from this entry is:
Can cancer growth and spread be better understood by mapping the electrical state of cancer cells and the ion channels that control it?
For BREXAtlas, BRE-026 is essential because it gives the encyclopedia a bioelectric systems framework for cancer progression.
---
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