Oxygen, Hyperbaric / CD31 Cancer Research Results

Oxy, Oxygen, Hyperbaric: Click to Expand ⟱
Features: Therapy
Hyperbaric oxygen (HBO) therapy is a treatment where patients breathe 100% oxygen inside a pressurized chamber.(typically 1.5–3.0 ATA) This approach increases the oxygen concentration in the blood and tissues.
Its strongest evidence base is:
-Radiation enhancement (oxygen fixation)
-Treatment of radiation necrosis
-Wound healing in oncology patients
Enhanced Oxygenation of Tumors:
-Many tumors are hypoxic (low in oxygen), which can make them more resistant to radiation and some forms of chemotherapy. Enhanced oxygenation through HBO may help overcome this hypoxia.
Increased oxygen levels can lead to the formation of reactive oxygen species (ROS), which may damage cancer cells and sensitize them to treatment.

Synergistic Effects with Radiation Therapy:
-Oxygen acts as a radiosensitizer. Radiation-induced DNA damage can be more effective in the presence of oxygen, potentially improving the efficacy of radiotherapy.
Some studies have explored combining HBO with radiotherapy to overcome radioresistance in hypoxic tumor regions.

Improved Delivery of Chemotherapeutic Agents:
-Elevated tissue oxygenation might enhance the delivery and efficacy of certain chemotherapeutic drugs, although this area is still under investigation.

Potential Immune Modulation:
-There is ongoing research into whether HBO can modulate the tumor microenvironment in a way that is more favorable for anti-tumor immune responses.

Possible problems:
-Implanted device (such as an insulin pump or pacemaker)
-Avoid with recent perforated ear drum
-Pneumothorax
-Wait for 4 wks after chemo?


Rank Pathway / Axis Cancer / Tumor Context Normal Tissue Context TSF Primary Effect Notes / Interpretation
1 Tumor hypoxia reduction Hypoxia ↓; HIF-1α signaling ↓ (context-dependent) Tissue oxygenation ↑ P, R Microenvironment normalization Elevated dissolved oxygen increases tumor pO₂, potentially reducing hypoxia-driven survival programs.
2 Radiation sensitization (oxygen fixation effect) Radiotherapy efficacy ↑ — R DNA damage amplification Oxygen stabilizes radiation-induced DNA radicals, increasing double-strand break lethality.
3 ROS generation (hyperoxia-driven) ROS ↑ (transient); oxidative stress ↑ ROS ↑; antioxidant response ↑ P, R Redox amplification Elevated O₂ increases mitochondrial and enzymatic ROS production; magnitude depends on exposure pressure and duration.
4 NRF2 antioxidant response Adaptive NRF2 activation ↑ (reported) NRF2 ↑; antioxidant enzymes ↑ R, G Redox adaptation Repeated hyperoxic exposure can induce antioxidant defense systems; may influence redox-sensitive therapies.
5 HIF-1α / hypoxia signaling modulation HIF-1α ↓ (acute hyperoxia); VEGF modulation Hypoxia signaling ↓ R Hypoxia pathway suppression Reduced hypoxia may decrease glycolytic shift and angiogenic drive in some tumors.
6 Angiogenesis modulation VEGF modulation (context-dependent) Wound-healing angiogenesis ↑ G Vascular remodeling HBOT stimulates angiogenesis in ischemic tissue; tumor angiogenic response varies by context.
7 Immune modulation Innate immune activity modulation Neutrophil function ↑; inflammation modulation R Inflammatory modulation Hyperoxia can alter cytokine signaling and leukocyte behavior.
8 Combination therapy interaction May enhance radiotherapy; effects with chemo variable — R, G Adjunctive leverage Most consistent evidence supports radiosensitization; chemotherapy interactions are drug-specific.
9 Safety constraints — Oxygen toxicity (CNS/pulmonary); barotrauma risk — Exposure limitation High-pressure or prolonged exposure can cause oxygen toxicity seizures or lung injury.

Time-Scale Flag (TSF): P / R / G

  • P: 0–30 min (hyperoxia; ROS surge)
  • R: 30 min–3 hr (HIF modulation; radiation sensitization window)
  • G: >3 hr (angiogenesis remodeling; adaptive antioxidant response)
CD31, platelet endothelial cell adhesion molecule-1 (PECAM-1): Click to Expand ⟱
Source:
Type: marker
CD31, also known as platelet endothelial cell adhesion molecule-1 (PECAM-1), is a transmembrane receptor that plays a crucial role in various cellular processes, including cell adhesion, migration, and signaling.
High CD31 expression has been linked to poor prognosis and increased metastasis. (except Leukemia and brain cancers).
CD31 is a marker that is commonly used to identify microvessels in tissue sections.
Scientific Papers found: Click to Expand⟱
1812- Oxy,    Hyperbaric oxygen suppressed tumor progression through the improvement of tumor hypoxia and induction of tumor apoptosis in A549-cell-transferred lung cancer
- in-vitro, Lung, A549 - in-vivo, Lung, NA - in-vitro, NA, BEAS-2B
TumCG↓, CD31↑, P53↓, Dose∅, other↑, Apoptosis↑, Hif1a↑, selectivity↑,

Showing Research Papers: 1 to 1 of 1

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 1

Pathway results for Effect on Cancer / Diseased Cells:


Cell Death ⓘ

Apoptosis↑, 1,  

Transcription & Epigenetics ⓘ

other↑, 1,  

DNA Damage & Repair ⓘ

P53↓, 1,  

Proliferation, Differentiation & Cell State ⓘ

TumCG↓, 1,  

Migration ⓘ

CD31↑, 1,  

Angiogenesis & Vasculature ⓘ

Hif1a↑, 1,  

Drug Metabolism & Resistance ⓘ

Dose∅, 1,   selectivity↑, 1,  
Total Targets: 8

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: CD31, platelet endothelial cell adhesion molecule-1 (PECAM-1)
Query results interpretion may depend on "conditions" listed in the research papers.
Such Conditions may include : 
  -low or high Dose
  -format for product, such as nano of lipid formations
  -different cell line effects
  -synergies with other products 
  -if effect was for normal or cancerous cells

Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:173  Target#:295  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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