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Research

Cancer Research

Index
Research that might be obvious and simple
Things that can lower Cancer Risk (Chemopreventive)
Direct Cancer Database Access
Unique Cancer Cell Features Relevant to Selective Targeting
Examples of using the Cancer Database to access information
OncoMagnetic device details
Sample of Pathways/Targets information from Database
Focusing on ROS research: ProOxidant strategy
ProOxidant strategy: pathways
Debate of AntiOxidants during ProOxidant strategy
Pathways to inhibit Glycolysis/Warburg Effect
Cancer Clinical Biomarkers

Go to UREBS Reference Design: Uniform Rotary Exciter Burst Sine

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1.Vitamin D supplement/sunlight
  - excessive sunlight is well known to pose a skin cancer risk
  - BUT lower vitamin D levels (low sunlight) increases risk for basically all other cancers.
  - intake/levels is inversely associated with the incidence of cancer
2.Vitamin K2
  - inverse association between dietary intake of VK and overall cancer incidence
3.Boron supplement - food intake levels might be low
  - boron intake is inversely associated with the incidence of cancer
5. Diet Plant based
 a)FMD (Fasting Mimicking diet) variations
  - nightly fasting Example research
 b)Diet
 c)Methionine-Restricted Diet
6. Physical Exercise
7. Diet changes: fibre, green juicing
8. Selenium Levels:
  - deficiency correlates with higher cancer incidence
  - Selenium nanoparticles may inhibit tumor growth.
  - may reduce chemotherapy/radiation side effects. (chemoprotective) (radioprotective) (radiosensitizer)
  - To make Selenium Nanoparticles.


Things that can lower Cancer Risk (Chemopreventive)

Risk: by definition reduces risk of disease or cancer.
Down Target direction of risk indicates lower cancer risk.
ChemoPreventive also mean lower cancer risk. But for Chemopreventive an up arrow indicates more preventive.

Cancer Risk Impact Score (CRIS)
CRIS scale:
–5 = very strong risk reduction
–4 = strong risk reduction
–3 = moderate risk reduction
–2 = modest risk reduction
–1 = weak / context-dependent
0 = neutral

CRIS Exposure / Compound Evidence Cancers Notes
-5 Exercise (overall) VStrong Hum BC, CRC, Endo, PCa, Liv i Notes
-5 Aerobic + resistance VStrong Hum Broad inc + mort i Notes
-4 Aerobic exercise (mod–vig) VStrong Hum BC, CRC, Endo i Notes
-4 Resistance training (alone) Strong Hum BC, CRC i Notes
-3 High-intensity interval training Mod–Strong Hum BC, CRC i Notes
-2 NEAT / low-intensity activity Moderate Hum CRC i Notes
-5 Cruciferous vegetable pattern Strong Hum Lung, CRC, BC, PCa i Notes
-5 Sunlight exposure (physiologic) Strong Hum CRC, BC, PCa i Notes
-4 Fasting (metabolic pattern) Strong Mech + Hum BC, CRC, PCa i Notes
-4 Curcumin Hum + Pre GI, BC, PCa i Notes
-4 Sulforaphane Hum + Pre Lung, CRC, BC i Notes
-4 PEITC Hum + Pre Lung, CRC, PCa i Notes
-4 EGCG (tea matrix) Strong Hum GI, PCa, BC i Notes
-4 Lycopene Strong Hum PCa i Notes
-4 Apigenin Pre + Diet Hum BC, PCa, CRC i Notes
-4 Luteolin Pre + Diet Hum Lung, CRC, BC i Notes
-4 Kaempferol Diet Hum Ov, Panc, Lung i Notes
-4 Fisetin Pre + Early Hum CRC, PCa, Mel i Notes
-4 Ellagic acid → Urolithin A Hum (microbiome) CRC, PCa, BC i Notes
-3 Omega-3 (EPA/DHA) Strong Hum CRC, BC i Notes
-3 Vitamin D3 (supp) Obs + RCT CRC, BC i Notes
-3 Garlic (allicin) Mod Hum GI i Notes
-3 Mushroom beta-glucans Hum adjunct GI, BC i Notes
-3 Melatonin Hum + Mech BC, PCa i Notes
-3 Coffee (whole) Strong Hum Liv, Endo i Notes
-2 Quercetin Limited Hum Lung, CRC i Notes
-2 Resveratrol Limited Hum CRC, BC i Notes
-2 I3C / DIM Mod Hum BC, Cerv i Notes
-2 Thymoquinone Early Hum BC, CRC i Notes
-2 Beta-carotene (food) Hum Lung i Notes
-1 Vitamin K2 (MK-4/7) Limited Hum Liv, PCa i Notes
-1 Boron Obs PCa, Lung i Notes
0 Vitamin C (oral) Strong Hum i Notes
0 Genistein (soy) Strong Hum BC, PCa i Notes
0 Selenium (diet) Mixed Hum PCa i Notes
0 Capsaicin Mixed Gastric i Notes
+2 Vitamin E (alpha only) Strong RCT PCa i Notes
+2 Green tea extract (high-dose) Case reports Liv i Notes
+4 Beta-carotene (supplement) Strong RCT Lung (smokers) i Notes
+5 Alcohol (ethanol) Strong Hum BC, Liv, Eso i Notes
Evidence Hum human data VStrong very strong Strong strong Mod moderate Obs observational Pre preclinical RCT randomized controlled trial Mech mechanistic Adjunct adjunct clinical use

Unique Cancer Cell Features Relevant to Selective Targeting

Cancer cells differ from normal cells in ways that can be exploited for selective targeting. The core idea is differential stress sensitization: cancer cells are pushed beyond their stress tolerance while normal cells remain viable. The hallmarks below are grouped into major stress domains that directly inform pro-oxidant (ProOx) pathway strategies.

Tip: Hover over underlined terms to see a concise explanation.


1) Oxidative Stress & Antioxidant Dependency (Redox Stress)

2) Energy & Fuel Utilization Stress (Metabolic Stress)

3) DNA Replication & Repair Stress (Genomic Stress)

4) ER Stress / Unfolded Protein Stress (Proteotoxic Stress)

5) Lipid / Metal Stress

6) Microenvironmental Stress


How to use this framework: Selective ProOx strategies typically combine (A) reduced antioxidant capacity (NRF2/Trx/GSH axis) with (B) a ROS source (mitochondrial stress, metal-catalyzed ROS, or physical modalities), while accounting for oxygenation and tumor-specific dependencies.

Examples of using the Cancer Database to access information.

Direct Cancer Database Access

View Complete List Products
View Complete List Targets/Pathways
View Complete List of Cancers / Illness covered in Database

Filtering tips:
1. To see how to improve the efficacy of a product, filter on the efficacy target in the up direction , and click the check box to include the target notes in the results. Listed at the bottom is the Scientific Paper hit counts and links for each product.
2. To see the things that decrease the efficacy, filter on efficacy in the down direction, (include check box for target notes). Note: that is also shows experimental results such as when anti-oxidants (NAC) are used to purposely test if the effect is attenuated (such as ROS). You may optionally use the browser search and highlight all function to find all the occurances of NAC
3. For BioAvailability information on a product, filter on the "bioavailability" target, (optionally specify direction) and click the check box to include the target notes in the results.
3b. For BioEnhancers you need to look at the target notes as the search result may be for a product that benefits from a bioEnchancer. Sonoporation is effectively a bioenhancer too.
4. You can narrow the search down to only Trials or Case Reports by selecting it in the Research Model.
5. Other interesting targets to query: RadioProtective, RadioSensitizer, ChemoProtective, ChemoSensitizer

Addition Requests and Corrections:
1. If you found a Research Paper that should be added, 1st do a title search to verify if it is in the database.
2. If you found an Addition or Data Entry Error, Contact us thru this email form. with the full information.

Personal Favorite Research Topics based on DIY principles.
SDT(Sonoporation), PEMF rotating fields, PEMF, Silver Nano Particles, Hydrogen, Apigenin(Parsley), Sulforaphane (mainly Broccoli)

- the database is pathway based. Searchs based on pathways are useful, as well as searches based on common pathways between products (possible synergy)
For example to see research on the ROS (Reactive Oxygen Species) pathway you would filter the database for the ROS target.
ROS filter
You can directly access the filtering (for you own selections) for the database here.

Calcium, and Magnetic Fields Database Query
Note from the above database query that the sum of the targets(at the bottom of the linked page) shows:
1. The Ca+2↑ target shows a significant count. Which indicates Ca+ is increased on applied magnetic field.
-note that at least one report claims a differential effect on Ca+ for normal cells and cancerous cells.
" > 15 min promoted Ca(2+) influx" and "Non-malignant cells did not show any EMF-dependent changes in Ca(2+) influx or cell growth"
2. Ca+2↑ coincides with ROS↑ (cancer cells). Increased ROS may lead to apoptosis of the cancer cells.
3. Notice on normal cells there are a few reports of both Ca+2↓ and ROS↓ and SOD↑, which is good for normal cells.
Calcium, and Rotary Magnetic Fields Database Query
Lots of debate over frequency and intensity. The induction intensity (dB/dt) may well be more critical than the field maximum amplitude.
Some reports try to explain the effect thru the Radical Pair Mechanism (RPM)

ROS and Magnetic Field
The above query strongly indicates an increase in ROS with applied magnetic field.
Lower time limits and lower power of field seems to correlate with a drop in ROS
One report even states: "Even a slight elevation in ROS levels within cancer cells relative to that in normal cells can surpass a critical threshold, inducing cancer cell death and suppressing tumor development". Since cancer cells have higher iron and H2O2, it is logical that the applied magnetic field induces the Fenton reaction, and would have a greater detrimental effect on cancer cells. Also cancer cells typically have less anti-oxidant defences than normal cells.
HSP70 is also typically upregulated by magnetic fields but greater efficacy might be acheived if combined with HSP70 inhibitor, and combining with hyperthermia
Ascorbic Acid + Cancer
-generally considered an antioxidant, but at higher concentrations (like IV) and/or higher iron/copper levels (like in cancer cells) many research papers reflect the ProOxidant effect
Ascorbic Acid + Magnetic Fields (same reseach paper)
Compare: Ascorbic Acid + Magnetic Fields (different reseach papers)
- observe that pathways such as ROS↑ and DNA damage↑ are common
Vit K2 + Cancer
Vit K3 + Cancer
Vit K3 + Vit C (same research paper)
Vit K3 + Vit C (comparison/different papers)
Iron + Cancer
Iron + Magnetic Fields (same reseach paper)
Iron + Rotary Magnetic Fields (same reseach paper)
Compare: Iron + Magnetic Fields (different reseach papers)
Copper and Cancer Research
Blood flow circulation and Magnetic Fields
Magnetic Field Research and Cancer
Rotating Magnetic Fields and Cancer
FMD (Fasting Mimicking diet) and Cancer Research
Alkalization Therapy (pH)
Alpha-Lipoic-Acid (ALA)
Boron
Hydroxycitric Acid
Curcumin
Heat/Hyperthermia
Magnesium
Oxygen, Hyperbaric
Peppermint
Photodynamic Therapy
Propyl gallate
Quercetin
Conflicting Research of Selenium and Cancer
Vitamin K2
Vitamin K3 (with toxic warnings)
Whole Body Vibration
There are over 389 products in the database, so many more queries are possible.

OncoMagnetic Device Research Paper-Information.

The OncoMagnetic rotary magnetic field generator was invented by the Houston Methodist Hospital and is being used for compassionate treatment of GBM brain tumors.
ROS and Rotary Magnetic Fields
Some of the most interesting information is the OncoMagnetic device (motor pulsing the spinning of a magnet)
- Oscillating Magnetic fields on GBM cells
- sOMF on GBM cells
- sOMF causes ROS in GBM cells
- Oncomagnetic safety in mice
- Case Report: Oncomagnetic human GBM treatment 31% tumor volume reduction
- Update Release comparing efficacy to dose of radiation
- Patent for Oncomagnetic device has much information on pathways
- duplicated in China

Sample of Pathways/Targets information from Database:.

ATP (adenosine triphosphate): source of energy
2 possible ways available for cancer cells to generate ATP: glycolysis and OXPHOS
Glycolysis
OXPHOS, Oxidative phosphorylation: source of energy
ROS
Catalase
GSH Glutathione
Hydrogen Peroxide (H2O2)
Warburg Effect
There are over 1400 pathways listed in the database, so many more queries are possible.
You may also include the Target direction in the search. For example suppose you are looking for:
HDAC inhibitors or Research on Glycolysis downregulators
or another example that includes the Target notes(which is possible for any target query)
Efficacy Improvement with Target Notes

Focusing on ROS research: ProOxidant strategy

All Research mentioning ROS in Cancer Database
Reactive oxygen species (ROS) are highly reactive molecules that contain oxygen and can lead to oxidative stress in cells. They play a dual role in cancer biology, acting as both promoters and suppressors of cancer.
ROS can cause oxidative damage to DNA, leading to mutations that may contribute to cancer initiation and progression. So normally you want to inhibit ROS to prevent cell mutations.
However excessive ROS can induce apoptosis (programmed cell death) in cancer cells, potentially limiting tumor growth. Chemotherapy typically raises ROS.
-mitochondria is the main source of reactive oxygen species (ROS) (and the ETC is heavily related)

"Reactive oxygen species (ROS) are two electron reduction products of oxygen, including superoxide anion, hydrogen peroxide, hydroxyl radical, lipid peroxides, protein peroxides and peroxides formed in nucleic acids 1. They are maintained in a dynamic balance by a series of reduction-oxidation (redox) reactions in biological systems and act as signaling molecules to drive cellular regulatory pathways."
"During different stages of cancer formation, abnormal ROS levels play paradoxical roles in cell growth and death 8. A physiological concentration of ROS that maintained in equilibrium is necessary for normal cell survival. Ectopic ROS accumulation promotes cell proliferation and consequently induces malignant transformation of normal cells by initiating pathological conversion of physiological signaling networks. Excessive ROS levels lead to cell death by damaging cellular components, including proteins, lipid bilayers, and chromosomes. Therefore, both scavenging abnormally elevated ROS to prevent early neoplasia and facilitating ROS production to specifically kill cancer cells are promising anticancer therapeutic strategies, in spite of their contradictoriness and complexity."
"ROS are the collection of derivatives of molecular oxygen that occur in biology, which can be categorized into two types, free radicals and non-radical species. The non-radical species are hydrogen peroxide (H 2O 2 ), organic hydroperoxides (ROOH), singlet molecular oxygen ( 1 O 2 ), electronically excited carbonyl, ozone (O3 ), hypochlorous acid (HOCl, and hypobromous acid HOBr). Free radical species are super-oxide anion radical (O 2•−), hydroxyl radical (•OH), peroxyl radical (ROO•) and alkoxyl radical (RO•) [130]. Any imbalance of ROS can lead to adverse effects. H2 O 2 and O 2 •− are the main redox signalling agents. The cellular concentration of H2 O 2 is about 10−8 M, which is almost a thousand times more than that of O2 •−".
"Radicals are molecules with an odd number of electrons in the outer shell [393,394]. A pair of radicals can be formed by breaking a chemical bond or electron transfer between two molecules."

Recent investigations have documented that polyphenols with good antioxidant activity may exhibit pro-oxidant activity in the presence of copper ions, which can induce apoptosis in various cancer cell lines but not in normal cells. "We have shown that such cell growth inhibition by polyphenols in cancer cells is reversed by copper-specific sequestering agent neocuproine to a significant extent whereas iron and zinc chelators are relatively ineffective, thus confirming the role of endogenous copper in the cytotoxic action of polyphenols against cancer cells. Therefore, this mechanism of mobilization of endogenous copper." > Ions could be one of the important mechanisms for the cytotoxic action of plant polyphenols against cancer cells and is possibly a common mechanism for all plant polyphenols. In fact, similar results obtained with four different polyphenolic compounds in this study, namely apigenin, luteolin, EGCG, and resveratrol, strengthen this idea.
Interestingly, the normal breast epithelial MCF10A cells have earlier been shown to possess no detectable copper as opposed to breast cancer cells [24], which may explain their resistance to polyphenols apigenin- and luteolin-induced growth inhibition as observed here (Fig. 1). We have earlier proposed [25] that this preferential cytotoxicity of plant polyphenols toward cancer cells is explained by the observation made several years earlier, which showed that copper levels in cancer cells are significantly elevated in various malignancies. Thus, because of higher intracellular copper levels in cancer cells, it may be predicted that the cytotoxic concentrations of polyphenols required would be lower in these cells as compared to normal cells."

Majority of ROS are produced as a by-product of oxidative phosphorylation, high levels of ROS are detected in almost all cancers.
-It is well established that during ER stress, cytosolic calcium released from the ER is taken up by the mitochondrion to stimulate ROS overgeneration and the release of cytochrome c, both of which lead to apoptosis.

Note: Products that may raise ROS can be found using this database, by:
Filtering on the target of ROS, and selecting the Effect Direction of ↑

Targets to raise ROS (to kill cancer cells):
• NADPH oxidases (NOX): NOX enzymes are involved in the production of ROS.
    -Targeting NOX enzymes can increase ROS levels and induce cancer cell death.
    -eNOX2 inhibition leads to a high NADH/NAD⁺ ratio which can lead to increased ROS
• Mitochondrial complex I: Inhibiting can increase ROS production
• P53: Activating p53 can increase ROS levels(by inducing the expression of pro-oxidant genes)
Nrf2 inhibition: regulates the expression of antioxidant genes. Inhibiting Nrf2 can increase ROS levels
• Glutathione (GSH): an antioxidant. Depleting GSH can increase ROS levels
• Catalase: Catalase converts H2O2 into H2O+O. Inhibiting catalase can increase ROS levels
• SOD1: converts superoxide into hydrogen peroxide. Inhibiting SOD1 can increase ROS levels
• PI3K/AKT pathway: regulates cell survival and metabolism. Inhibiting can increase ROS levels
HIF-1α inhibition: regulates genes involved in metabolism and angiogenesis. Inhibiting HIF-1α can increase ROS
• Glycolysis: Inhibiting glycolysis can increase ROS levels • Fatty acid oxidation: Cancer cells often rely on fatty acid oxidation for energy production.
-Inhibiting fatty acid oxidation can increase ROS levels
• ER stress: Endoplasmic reticulum (ER) stress can increase ROS levels
• Autophagy: process by which cells recycle damaged organelles and proteins.
-Inhibiting autophagy can increase ROS levels and induce cancer cell death.
• KEAP1/Nrf2 pathway: regulates the expression of antioxidant genes.
    -Inhibiting KEAP1 or activating Nrf2 can increase ROS levels and induce cancer cell death.
• DJ-1: regulates the expression of antioxidant genes. Inhibiting DJ-1 can increase ROS levels
• PARK2: regulates the expression of antioxidant genes. Inhibiting PARK2 can increase ROS levels
SIRT1 inhibition:regulates the expression of antioxidant genes. Inhibiting SIRT1 can increase ROS levels
AMPK activation: regulates energy metabolism and can increase ROS levels when activated.
mTOR inhibition: regulates cell growth and metabolism. Inhibiting mTOR can increase ROS levels
HSP90 inhibition: regulates protein folding and can increase ROS levels when inhibited.
• Proteasome: degrades damaged proteins. Inhibiting the proteasome can increase ROS levels
Lipid peroxidation: a process by which lipids are oxidized, leading to the production of ROS.
    -Increasing lipid peroxidation can increase ROS levels
• Ferroptosis: form of cell death that is regulated by iron and lipid peroxidation.
    -Increasing ferroptosis can increase ROS levels
• Mitochondrial permeability transition pore (mPTP): regulates mitochondrial permeability.
    -Opening the mPTP can increase ROS levels
• BCL-2 family proteins: regulate apoptosis and can increase ROS levels when inhibited.
• Caspase-independent cell death: a form of cell death that is regulated by ROS.
    -Increasing caspase-independent cell death can increase ROS levels
• DNA damage response: regulates the repair of DNA damage. Increasing DNA damage can increase ROS
• Epigenetic regulation: process by which gene expression is regulated.
    -Increasing epigenetic regulation can increase ROS levels

-PKM2, but not PKM1, can be inhibited by direct oxidation of cysteine 358 as an adaptive response to increased intracellular reactive oxygen species (ROS)

ProOxidant Strategy:(inhibit the Mevalonate Pathway (likely will also inhibit GPx)
-HydroxyCitrate (HCA) found as supplement online and typically used in a dose of about 1.5g/day or more
-Atorvastatin typically 40-80mg/day, -Dipyridamole typically 200mg 2x/day Combined effect research
-Lycopene typically 100mg/day range (note debatable as it mainly lowers NRF2)

Dual Role of Reactive Oxygen Species and their Application in Cancer Therapy
ROS-Inducing Interventions in Cancer — Canonical + Mechanistic Reference
-generated from AI and Cancer database
ROS rating:  +++ strong | ++ moderate | + weak | ± mixed | 0 none
NRF2:        ↓ suppressed | ↑ activated | ± mixed | 0 none
Conditions:  [D] dose  [Fe] metal  [M] metabolic  [O₂] oxygen
             [L] light [F] formulation [T] tumor-type [C] combination

Item ROS↑ NRF2 Condition Mechanism Class Remarks
Piperlongumine +++ [D][T] ROS-dominant i Notes
Shikonin +++↓/±[D][T]ROS-dominant i Notes
Vitamin K3 (menadione) +++[D]ROS-dominant i Notes
Copper (ionic / nano) +++[Fe][F]ROS-dominant i Notes
Selenite +++[D]ROS-dominant i Notes
Juglone +++[D]ROS-dominant i Notes
Auranofin +++[D]ROS-dominant i Notes
Photodynamic Therapy (PDT) +++0[L][O₂]ROS-dominant i Notes
Radiotherapy / Radiation +++0[O₂]ROS-dominant i Notes
Doxorubicin +++[D]ROS-dominant i Notes
Cisplatin ++[D][T]ROS-dominant i Notes
Salinomycin ++[D][T]ROS-dominant i Notes
Artemisinin / DHA ++[Fe][T]ROS-dominant i Notes
Sulfasalazine ++[C][T]ROS-dominant i Notes
FMD / fasting ++[M][C][O₂]ROS-dominant i Notes
Vitamin C (pharmacologic) ++[Fe][D]ROS-dominant i Notes
Silver nanoparticles ++±[F][D]ROS-dominant i Notes
Gambogic acid ++[D][T]ROS-dominant i Notes
Parthenolide ++[D][T]ROS-dominant i Notes
Plumbagin ++[D]ROS-dominant i Notes
Allicin ++[D]ROS-dominant i Notes
Ashwagandha (Withaferin A) ++[D][T]ROS-dominant i Notes
Berberine ++[D][M]ROS-dominant i Notes
PEITC ++[D][C]ROS-dominant i Notes
Methionine restriction +[M][C][T]ROS-secondary i Notes
DCA +±[M][T]ROS-secondary i Notes
Capsaicin +±[D][T]ROS-secondary i Notes
Galloflavin +0[D]ROS-secondary i Notes
Piperine +±[D][F]ROS-secondary i Notes
Propyl gallate +[D]ROS-secondary i Notes
Scoulerine +?[D][T]ROS-secondary i Notes
Thymoquinone ±±[D][T]Dual redox i Notes
Emodin ±±[D][T]Dual redox i Notes
Alpha-lipoic acid (ALA) ±[D][M]NRF2-dominant i Notes
Curcumin ±↑/↓[D][F]NRF2-dominant i Notes
EGCG ±↑/↓[D][O₂]NRF2-dominant i Notes
Quercetin ±↑/↓[D][Fe]NRF2-dominant i Notes
Resveratrol ±[D][M]NRF2-dominant i Notes
Sulforaphane ±↑↑[D]NRF2-dominant i Notes
Lycopene 0Antioxidant i Notes
Rosmarinic acid 0Antioxidant i Notes
Citrate 00Neutral i Notes

Pro-Oxidant (ProOx) Strategy — Pathway-Oriented Framework

A practical way to organize “pro-oxidant” cancer approaches is by which redox-control pathway is being stressed. Most interventions that raise ROS in cancer cells do so by (1) reducing antioxidant capacity, (2) forcing ROS production, or (3) both. Importantly, many agents are condition-dependent (dose, formulation, oxygenation, tumor type, or combination therapy).

Legend (short condition codes)


1) NRF2 / KEAP1 Axis (Antioxidant Master Control)

Goal: inhibit NRF2 signaling to reduce antioxidant defense and increase vulnerability to ROS stress. NRF2 controls multiple downstream defenses (GSH synthesis, TrxR, detox enzymes, NADPH support), so NRF2 suppression is best viewed as a master amplifier rather than a stand-alone ROS generator. Inhibit NRF2 to reduce anti-Oxidant defense.
NRF2 inhibition

2) Thioredoxin System (Trx / TrxR / Trx1 / Trx2)

Goal: inhibit the thioredoxin redox system, a primary peroxide-buffering and redox-repair network that many tumors rely on. This is one of the most powerful ways to increase oxidative stress in cancer cells.

3) Glutathione / xCT / GPX4 Axis (Ferroptosis-Linked ROS)

Goal: deplete GSH or block cystine import to increase lipid ROS and trigger ferroptosis vulnerability. This axis is distinct from the Trx system and should be treated as a separate pathway family.

4) Mitochondrial ETC / OXPHOS ROS (Mito-ROS)

Goal: increase mitochondrial electron leakage (superoxide) by shifting metabolism toward OXPHOS, impairing ETC components, or depleting mitochondrial antioxidants (e.g., CoQ10).

5) Central Carbon Metabolism / Warburg Suppression

Goal: inhibit glycolysis/fermentation dependencies to collapse ATP support and/or force mitochondrial respiration, creating ROS pressure and sensitizing tumors to other therapies.

6) Metal-Catalyzed ROS (Fenton / Chemodynamic)

Goal: exploit iron/copper redox chemistry to generate highly reactive radicals. This is a direct ROS-production pathway that is strongly dependent on metal availability and formulation.

7) Physical ROS Generation (Non-chemical)

Goal: generate ROS directly through physical modalities that do not rely on tumor metabolism alone. These approaches can be highly effective due to controllable targeting (spatial or dose-based).

Implementation notes

Debate of AntiOxidants during ProOxidant strategy (Chemotherapy)

Chemotherapy raises the ROS in cancer cells (and normal cells) in an attempt to kill the cancer cells. Hence there is a debate on the use of antioxidants for Chemotherapy (or any pro-oxidant therapy). The debate is logical as it well known that anti-oxidants will reduce ROS. In fact it is common for anti-oxidants to be used in the lab to test reversal of the killing action of cancer compounds that are being tested. If the reversal happens then they conclude the ROS was a major contributor to the killing action in the cancer cells. You can see many examples in this cancer database query, if you look for the highlighted word NAC (an anti-oxidant). One example of the wording is "Allicin significantly induced ROS overproduction, whereas NAC pretreatment decreased the ROS induction by allicin exposure in Hep 3B cells"
The argument for the use of anti-oxidants during chemo, is to protect normal cells from the rise in ROS, and hence reduce the side effects caused by chemotherapy.
The debate is not simple because the compounds classified as anti-oxidants are not pure anti-oxidants. That is only one of their properties. Each of them will have other properties that will come into play. Another factor is some anti-oxidant compounds can have a pro-oxidant effect depending on dose and other factors.
An interesting example of this is a report that selenium when combined with oxygen can lower NRF2 (master anti-oxidant regulator) in cancer cells.
From a research perspective there appears that there may be some compounds that can raise ROS in cancer cells, and some that can do it selectively. Review Focusing on ROS research: ProOxidant strategy and query the database
Curcumin is one such example that may selectively lower ROS in normal cells, but raise it in cancer cells (dose depend?). Curcumin is often considered as an anti-oxidant. Timing can matter.

"Antioxidants are compounds that inhibit oxidation, a chemical reaction that can produce free radicals."
For example Vitamin C (normally Antioxidant), Vitamin e, and Trolox are anti-oxidants.
Berries: Blueberries, Strawberries, Raspberries, Blackberries
Fruits: Grapes, Pomegranates, Oranges, Apples
Vegetables: Spinach and other leafy greens, Kale, Broccoli, Brussels sprouts
Nuts and Seeds: Walnuts, Almonds, Flaxseeds, Chia seeds
Beverages: Green tea, Black tea
Spices and Herbs: curcumin, Ginger, Garlic, Cinnamon
Other: Dark chocolate (with high cocoa content), Beans and legumes, Tomatoes (rich in lycopene)

Antioxidants are compounds that help neutralize free radicals—unstable molecules that can damage cells and contribute to the development of chronic diseases including cancer.

Cancer Prevention:
Mechanism: Antioxidants protect cells from oxidative damage caused by free radicals, which can lead to mutations in DNA. Over time, these mutations might initiate or promote the growth of cancer cells.
Dietary Role: Eating a diet rich in antioxidants (fruits, vegetables, and other plant-based foods) has been associated with a lower risk of some cancers. Many epidemiological studies suggest that diets high in natural antioxidants are linked to a reduced risk of cancer.

During Cancer Treatment:
Controversy: There is debate about whether taking antioxidant supplements during chemotherapy or radiation therapy is beneficial or harmful. Many therapies such as Chemotherapy raise the ROS(Reactive oxygen Species) intentionally to kill cancer cells. Some theory applies that antioxidants might prevent the ROS from being raised, and hence reduce treatment effectiveness. Some laboratory and clinical studies indicate that antioxidants might protect not only healthy cells but also cancer cells against the oxidative damage intentionally induced by these treatments. This could potentially reduce the effectiveness of cancer therapies. Another theory is there is a differential effect from taking antioxidants. Meaning the antioxidants help protect normal cells, but not the cancer cells.
Recommendation: Many oncologists recommend caution with high-dose antioxidant supplements during active cancer treatment. Instead, a balanced diet with naturally occurring antioxidants is typically advised.

thiol-containing antioxidants: -Contain a functional –SH (sulfhydryl) group
-Can undergo oxidation to form disulfide bonds. This reversible redox behavior allows these molecules to neutralize reactive oxygen species (ROS).
-Thiol antioxidants (like N‑acetylcysteine or glutathione) are potent because the –SH group can directly scavenge ROS.
-There is concern that supplementation with thiol antioxidants during chemotherapy could neutralize some of the ROS generated by the treatment, potentially reducing the intended cytotoxic effects on cancer cells.
Examples:
-NAC
-GSH
-NMPG
-dihydrolipoic acid (reduced form of ALA)
-Cysteamine
-Ergothioneine
-Thioredoxin

Non-thiol ROS scavengers:
-Act by donating electrons or hydrogen atoms to free radicals, thereby stabilizing them or converting them into less reactive species.
-Non‑thiol antioxidants (like vitamin C, vitamin E, flavonoids, etc.) have different mechanisms of action and may not interact as directly with ROS in the specific context of chemotherapy-induced cell death.
-That said, even non‑thiol antioxidants could potentially interfere with chemotherapy in some cases. For example, high doses of vitamin C or vitamin E might also diminish the oxidative stress essential for the efficacy of some chemotherapeutics.
Examples
-Ascorbic Acid(VitC)
-Vitamin E
-Flavoniods (Quercetin)
-Carotenoids(beta-carotene)
-Resveratrol
-Coenzyme Q10 (ubiquinone)
-Curcumin (indirectly disrupt thiol systems)
-Polyphenols (ferulic acid and caffeic acid)
-manganese(III)
-tetrakis( (4-benzoic acid)
-porphyrin chloride (MnTBAP)
-SOD

*** NOTE:
Thiol AntiOxidants could block ROS generation caused by Gambogic Acid, but not NON-Thiol AntiOxidants.
-Thiol-based antioxidants directly support glutathione and thioredoxin buffering and are most likely to protect cancer cells from ROS- or thiol-dependent therapies. Non-thiol antioxidants may act as radical scavengers, redox modulators, or—under certain tumor-specific conditions—pro-oxidants. Therefore, the likelihood that an antioxidant interferes with cancer therapy depends less on whether it ‘scavenges ROS’ and more on whether it restores thiol redox homeostasis or activates cytoprotective signaling pathways such as NRF2.

OTHER CLASSES of antioxidants
1. Enzymatics Antioxidants (SOD, Catalase, GPXs)
-proteins that catalyze reactions to detoxify reactive oxygen species (ROS).
2. Non-Enzymatic (Small-Molecule) Antioxidants.
Further divided to Thiol-Based Antioxidants, vs Non-Thiol Based Antioxidants.
3. Metal-Binding Proteins and Chelators (Ferritin, Transferrin)
These compounds limit oxidative damage indirectly by sequestering transition metals (like iron and copper) that catalyze reactive oxygen species formation via the Fenton reaction.
4. Indirect Antioxidants (Nrf2 Activators): (Sulforaphane, Curcumin) enhance the body’s own antioxidant defenses by upregulating the expression of antioxidant enzymes.


 
Cancer-Relevant Antioxidant Matrix
(Oral/achievable doses)
AntiOxidant Oral Pro-ox. Thiol EffectEffect on NRF2 up NRF2 up Cancer Chemo Mechanism
Compound Dose/day Cancer Buffer on ROS ROS risk in Redox. Compatibility and
Idx 0-4 cancer Normal Cancer Normal Buffer Notes
Salinomycin 0.2–1 mgYes0↑3↓1 000Compatible
Disulfiram (+Cu) 250–500 mgYes1↑3–4↓1–2 0–10–10–1Cond.[M][D]
PEITC 40–100 mgYes3↑3↓1–2 0–10–11–2Compatible
Withaferin A 5–20 mgYes1–2↑3↓1–2 111–2Cond.[D][M]
Betulinic Acid 200–600 mgYes0–1↑2–3↓1–2 000–1Compatible
Ursolic Acid 150–450 mgYes1↑2–3↓2 111Cond.[D][M]
Thymoquinone (TQ) 100–400 mgYes2–3↑2–3↓2 2–32–31–2Cond.[D][M]
Curcumin 1–4 gYes2↑2–3↓2 321Cond.[T][D][M]
Quercetin 500–1000 mgYes2↑2–3↓2 1–22–31Cond.[D][M]
EGCG (green tea) 400–800 mgYes2↑2–3↓2 2–31–21–2Cond.[T][D][M]
Honokiol 200–600 mgYes1–2↑2–3↓2–3 111–2Compatible
Berberine 500–1500 mgYes2↑2–3↓2 1–21–21–2Cond.[D][M]
Resveratrol 500–2000 mgYes1↑1–2↓2 21–21–2Cond.[D][M]
Pterostilbene 100–300 mgYes1↑1–2↓2 111Compatible
Lycopene 15–75 mgContext0–1↔1–2↓2–3 11–20–1Compatible
Selenium (org.) 200–400 µgYes(sel.)3↑1–2↓2–3 1–22–32–3Compatible[F]
SeNPs (oral) 50–200 µgYes(tumor)3↑2–3↓2–3 0–11–22–3Compatible[F]
Vitamin C (oral) ≤2–3 gLimited2↔1↓2–3 122Compatible
β-Carotene 20–30 mgHigh-risk1↔1–2↓2 11–21Caution[D][M]
Sulforaphane 30–100 mgIndirect2↑1↓3–4 3–43–43–4Caution[M]
Melatonin 10–50 mgSelective1↑1↓3–4 1–21–21–2Compatible
CoQ10 (oxidized) 100–300 mgPossible2↔1↓2–3 1–222Cond.[M][F]
Luteolin 50–200 mgYes1↑1↓2–3 1–21–21Compatible
Apigenin 50–200 mgYes1↑1↓2–3 1–21–21Compatible
Kaempferol 50–200 mgYes1↑1↓2–3 1–21–21Compatible
Genistein 30–100 mgYes1↑1↓2–3 1–21–21–2Cond.[D][H][M]
Fisetin 100–500 mgYes1↑1↓2–3 1–21–21Compatible[D][M]
Myricetin 50–250 mgYes1↑1–2↓2–3 1–21–21Compatible[D][M]
Ellagic Acid 200–800 mgYes0–1↑1–2↓2–3 110–1Compatible
Urolithin A (UA) 250–1000 mgYes (sel.)0–1↑1–2↓2–3 0–110–1Compatible
Spermidine 5–20 mgContext0–1↔1↓1–2 0–110–1Compatible
α-Lipoic acid (ALA) 300–600 mgLimited2↑1↓2–3 1–21–21Cond.[D][M]
Caffeic / Ferulic 100–500 mgContext0–1↔1↓2–3 110–1Compatible
Naringenin / Hesp. 50–200 mgLimited0–1↔1↓3–4 0–10–10–1Compatible
Astaxanthin (ASTX) 4–12 mgNo0↔0↓3–4 000Cond.[M]
Vitamin E (α-toc.) 200–800 IUNo2↔0–1↓3–4 02–32–3Caution[M][D]
Trolox (Vit E) 20–200 mgNo2↔0–1↓3–4 02–32–3Caution[M][D]
N-acetylcysteine 600–1800 mgNo4↓1–2↓3–4 23–44Caution[M][D]
Glutathione (oral) 250–1000 mgNo4↓1↓3–4 23–43–4Caution[M][D]
Lutein / Zeaxanthin 10–20 mgNo0↔0↓3–4 000Compatible
Compatible – No known interference at oral doses
Cond. (Conditional) – Timing, dose, or regimen dependent
Caution – Likely to interfere with ROS-dependent therapies

[T] = Timing-sensitive (avoid peri-infusion / ROS-dependent window)
[D] = Dose-dependent (low vs high dose behave differently)
[M] = Mechanism-dependent (NRF2, ETC, thiol buffering, metal chelation)
[H] = Hormone- or receptor-dependent
[F] = Form-dependent (chemical form matters)(organic vs nano)

*NFR2 Explanation not necessarily reflected in ratings (example Quercetin)
   -NRF2↑ in normal cells is the dominant pattern
   -In cancer cells, NRF2 upregulation is possible, but not dominant, and often context-suppressed by stronger pro-oxidant mechanisms.

Smaller <50 nm SeNPs generate ROS more efficiently; may interfere with ROS-dependent chemo if given concurrently
Chemo compatibility assumes ROSs-dependent cytotoxic modalities (e.g., anthracyclines, platinum agents, radiation). Non-ROS-dependent therapies may not share these constraints.

*β-carotene is incompatible primarily in smokers / high-oxygen tissues.
Arrows show whether ROS increases (↑), decreases (↓), or neutral/variable (↔)
Thiol Buffering Index (0–4):
| TBI Score | Meaning                                                                                                |
| --------- | ------------------------------------------------------------------------------------------------------ |
| 0         | No effect on thiol pools; does not buffer redox stress (mostly non-thiol antioxidants)                 |
| 1         | Minimal indirect thiol effect; may slightly modulate thiol-dependent enzymes                           |
| 2         | Moderate indirect thiol effect; may perturb thiols or partially modulate GSH/Trx system                |
| 3         | Significant thiol buffering; contributes to redox stabilization in cancer cells                        |
| 4         | Strong direct thiol donor; substantially increases GSH/thioredoxin pools; high chemo interference risk |

Note the table is very general, and database searches and details should be researched for each compound of interest.
Example: Luteolin can show NRF2 down in cancer cells

Pathways to inhibit Glycolysis / Warburg Dependence

A) Direct disruption of glycolytic flux (energy stress ± ROS)
HK step disruption: 2-DG (substrate analog; blocks glycolysis; also affects glycosylation)
PFK regulation (note: citrate/ATP/AMP are endogenous regulators; actionable nodes include PFKFB3)
PKM2 modulation (context-dependent effects on glycolysis vs biosynthetic routing)
LDH-A inhibition (Warburg output suppression: pyruvate → lactate)
MCT1 / MCT4 inhibition (lactate transport; acid stress)

B) Shift away from fermentation toward mitochondrial oxidation (often ROS↑)
HIF-1α inhibition (context-dependent; oxygenation and tumor type matter)
PDK inhibition (e.g., DCA → pyruvate into mitochondria; OXPHOS↑; mito ROS may rise)

C) Upstream growth signaling that drives glycolysis
PI3K inhibition
AKT inhibition - Often decreases glycolysis via PI3K/AKT/mTOR and HIF-1α programs; ROS effects are model-dependent and may increase if cells are forced toward OXPHOS or lose antioxidant compensation.
mTOR inhibition
c-Myc suppression - Frequently reduces glycolysis and glutamine programs; relationship to COX-2 is context-dependent.

D) Metabolic regulators and nutrient entry points
AMPK activation - Typically opposes anabolic glycolysis; ROS direction is context-dependent (can rise if OXPHOS is increased, or fall if antioxidant programs dominate).
GLUT1 downregulation (glucose import) - Model-dependent; ROS may increase if cells are forced toward OXPHOS or lose antioxidant compensation.
GLS (glutaminase) / glutamine dependency
PPP / G6PD (NADPH supply for redox defense)

ROS interpretation note: glycolysis/Warburg inhibition does not always mean ROS↑. ROS is more likely to rise when interventions force a shift toward mitochondrial respiration or simultaneously reduce antioxidant capacity (often [C][M][T]).

Here is an example of a multi-product query, based on a selection of targets. We are using the "Breast Pack" of natural products offered by MCS Formulas as an example. (Example query demonstration only; this does not imply clinical benefit.)

There are 2 basic types of synergies between products:
1. alignment of targets increasing the overall effect.
2. corrections of some target directions, increasing the overall effect.
- an example of this is the FMD (Fasting Mimicking diet) and high dose Vitamin C(HDVC) (Ascorbic Acid)
- HDVC raises ROS but its activity is limited by the up-regulation HO-1. FMD reverses vitamin C-induced up-regulation of HO-1, hence improving the effect.

Cancer Clinical Biomarkers:

|Rank| Biomarker     | Primary Clinical Decision Impact | Clinical Class   | Why This Rank                                  |
| ---| ------------- | -------------------------------- | ---------------- | ---------------------------------------------- |
| 1  | EGFR          | Determines TKI therapy           | Target selection | Binary, life-altering therapy choice           |
| 2  | HER2          | Anti-HER2 therapy                | Target selection | Mandatory in breast/gastric cancer             |
| 3  | KRAS           | Excludes EGFR therapy            | Target selection | Negative predictor with major impact           |
| 4  | PD-L1          | Immunotherapy eligibility        | Immunotherapy    | Gatekeeper for checkpoint use                  |
| 5  | MSI            | Tumor-agnostic immunotherapy     | Immunotherapy    | One of the strongest predictors of IO response |
| 6  | BRAF           | Targeted therapy                 | Target selection | Direct, mutation-specific action               |
| 7  | BRCA1 / BRCA2  | PARP inhibitor use               | Target selection | Therapy + inherited risk                       |
| 8  | ALK            | Fusion-targeted therapy          | Target selection | Dramatic response when positive                |
| 9  | AR             | Prostate therapy backbone        | Target selection | Defines entire disease class                   |
| 10 | ESR1           | Endocrine therapy                | Target selection | Absolute requirement in breast cancer          |

Mid-Tier: Strong but Contextual Decision Impact
| Rank | Biomarker     | Primary Use             | Clinical Class   | Notes                         |
| ---- | ------------- | ----------------------- | ---------------- | ----------------------------- |
| 11   | NTRK (fusion) | Tumor-agnostic therapy  | Target selection | Rare but decisive             |
| 12   | PSA           | Monitoring, progression | Monitoring       | Drives treatment timing       |
| 13   | B2M           | Staging & prognosis     | Immunotherapy    | Used in myeloma/lymphoma      |
| 14   | TP53          | Risk stratification     | Aggressiveness   | Alters intensity, trials      |
| 15   | WT1           | MRD monitoring          | Monitoring       | Highly actionable in leukemia |
| 16   | Ki-67         | Growth rate             | Aggressiveness   | Influences therapy escalation |
| 17   | CA-125        | Therapy response        | Monitoring       | Standard ovarian tracking     |
| 18   | CEA           | Recurrence detection    | Monitoring       | Common but nonspecific        |

Lower-Tier: Indirect / Emerging / Contextual Impact
| Rank |Biomarker| Primary Role           | Clinical Class   | Why Lower                  |
| ---- | ------- | ---------------------- | ---------------- | -------------------------- |
| 19   | AFP     | Diagnosis/monitoring   | Monitoring       | Cancer-specific contexts   |
| 20   | CA 19-9 | Disease burden         | Monitoring       | Prognostic, not directive  |
| 21   | MYC     | Risk biology           | Aggressiveness   | Not directly actionable    |
| 22   | TERT    | Prognosis              | Aggressiveness   | Rarely changes therapy     |
| 23   | EZH2    | Epigenetic state       | Aggressiveness   | Select indications         |
| 24   | SUZ12   | PRC2 dependency        | Aggressiveness   | Indirect                   |
| 25   | RBM3    | Prognostic             | Aggressiveness   | Informative, not directive |
| 26   | OPG     | Bone microenvironment  | Microenvironment | Supportive info            |
| 27   | RAGE    | Inflammation state     | Microenvironment | Research-stage             |
| 28   | XIST    | Epigenetic instability | Aggressiveness   | Not yet clinical           |
| 29   | FOXM1   | High-risk biology      | Aggressiveness   | No routine testing         |
| 30   | TRIB3   | Stress adaptation      | Aggressiveness   | Mechanistic, not clinical  |

Core Liver & Systemic Biomarkers in Oncology
| Marker    | What It Reflects                    | Main Use in Cancer                        | Decision Impact |
| --------- | ----------------------------------- | ----------------------------------------- | ----------- |
| ALT       | Hepatocellular injury               | Baseline eligibility, toxicity monitoring | High        |
| AST       | Liver + systemic injury             | Detect liver injury, muscle involvement   | High        |
| ALP       | Cholestasis, bone turnover          | Liver mets vs bone mets                   | High        |
| bilirubin | Hepatic clearance                   | Chemotherapy dosing                       | Critical    |
| albumin   | Synthetic liver function, nutrition | Prognosis, frailty                        | High        |
| LDH       | Tumor burden, hypoxia               | Aggressiveness, prognosis                 | High        |
| INR       | Liver synthetic failure             | Treatment safety                          | High        |

Key Inflammatory / Host-Response Biomarkers Used in Oncology
| Biomarker          | What It Reflects                 | Main Use in Cancer           | Clinical Decision Impact |
| ------------------ | -------------------------------- | ---------------------------- | -------------------- |
| C-reactive protein | Systemic inflammation            | Prognosis, therapy tolerance | High                 |
| ESR                | Chronic inflammation             | Disease activity trend       | Moderate             |
| ferritin           | Inflammation + iron status       | Cachexia, cytokine load      | High                 |
| IL-6               | Cytokine signaling               | Aggressiveness, cachexia     | High (specialty use) |
| LDH                | Tumor burden + hypoxia           | Risk stratification          | Very high            |
| albumin            | Nutritional & inflammatory state | Frailty, survival            | Very high            |



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