Methylene blue / GlutaM Cancer Research Results

M-Blu, Methylene blue: Click to Expand ⟱
Features:
Methylene blue (MB), also known as methylthioninium chloride, is a thiazine dye that can be used as a medication, and can be administered orally, subcutaneously or intravenously.
Mainly used to treat methemoglobinemia by chemically reducing the ferric iron in hemoglobin to ferrous iron
Methylene blue is commonly used in medical practice, especially as a dye in microbiological staining
Antidote in cyanide poisoning: an oxidation-reduction indicator: an antiseptic

Pathways:
- may increases the oxygen consumption of normal tissues having aerobic glycolysis, and of tumors
- generate reactive oxygen species (ROS) upon light activation
-effects on mitochondrial metabolism may contribute to modulation of apoptosis and energy metabolism in cancer cells.
-can affect the generation of reactive oxygen species.
-Historically, it was used in patients with urinary tract infection
-MB has also been used as a tracer for cancer diagnosis and as a photosensitizer for cancer treatment
-shifts redox balance and can promote OXPHOS over glycolysis in some models(reverse Warburg effect)
-can cross BBB and reach brain at concentrations 10 times higher than that in the circulation
-causes shift from shift from glycolysis to oxidative phosphorylation.
-reduces glutathione reductase GSR (an enzyme of glutathione metabolism), context- and concentration-dependent

Rank Pathway / Axis Cancer / Tumor Context Normal Tissue Context TSF Primary Effect Notes / Interpretation
1 Mitochondrial redox cycling (electron shuttle) Redox modulation; NADH oxidation ↑ (context) Mitochondrial efficiency ↑ at low doses (reported) P, R Bioenergetic modulation MB can accept electrons from NADH and donate downstream in the ETC; effects are dose-dependent and context-specific.
2 OXPHOS vs glycolysis balance Shift toward oxidative metabolism reported in some tumor models Improved mitochondrial coupling (low dose) R Metabolic reprogramming Sometimes described as “Warburg reversal,” but more accurately a redox/respiratory modulation that varies by system.
3 ROS modulation (biphasic) ROS ↑ at higher doses; apoptosis ↑ (reported) ROS ↓ or stabilized at lower doses P, R Redox destabilization (dose-dependent) Acts antioxidant at low concentrations; can become pro-oxidant as concentration increases.
4 Mitochondrial membrane potential (ΔΨm) ΔΨm collapse at higher doses (reported) Stabilization possible at low doses R Mitochondrial stress High-dose exposure can impair mitochondrial integrity and promote apoptosis.
5 Intrinsic apoptosis signaling Caspases ↑; apoptosis ↑ (reported in vitro) ↔ G Cell death execution Generally downstream of ROS and mitochondrial perturbation.
6 Photodynamic ROS generation (light-activated) ROS ↑↑ when photoactivated Localized ROS if illuminated P Photoactivated cytotoxicity Distinct mechanism: MB acts as a photosensitizer under light exposure.
7 Glutathione system modulation (GSR / redox enzymes) Redox enzyme modulation reported (model-dependent) Redox buffering alteration possible R Redox regulation Some reports show interaction with glutathione metabolism; not a dominant universal pathway.
8 Blood–brain barrier penetration — CNS accumulation (high tissue levels) P, R Pharmacokinetic property MB crosses the BBB and can accumulate in brain tissue at higher concentrations than plasma.
9 Monoamine oxidase (MAO) inhibition — MAO-A inhibition (clinically relevant) R Off-target pharmacology Important interaction risk with SSRIs/SNRIs (serotonin syndrome).
10 Safety constraints (G6PD deficiency; serotonin syndrome) — Hemolysis risk (G6PD); serotonin toxicity risk — Clinical risk management Well-established safety considerations in clinical use.

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

  • P: 0–30 min (rapid redox cycling; photoactivation)
  • R: 30 min–3 hr (mitochondrial and redox signaling shifts)
  • G: >3 hr (apoptosis/autophagy outcomes)
GlutaM, Glutaminolysis: Click to Expand ⟱
Source:
Type:
Glutaminolysis is the metabolic process through which glutamine, a non-essential amino acid, is catabolized to support cellular energy and biosynthesis. In many cancer cells, glutaminolysis is upregulated to meet the high demands for energy (ATP), biosynthetic precursors, and maintenance of redox balance.
Key Steps and Abbreviations in Glutaminolysis.
Glutamine (Gln): uptake of glutamine from the extracellular environment.
Glutaminase (GLS):Converts glutamine into glutamate by deamination. GLS overexpressed in cancers.
Glutamate (Glu): further converted into α-ketoglutarate (α-KG).
Glutamate Dehydrogenase (GDH): Catalyzes the conversion of glutamate to α-KG, feeding the tricarboxylic acid cycle (TCA, also known as Krebs cycle).
α-Ketoglutarate (α-KG):α-KG is a key intermediate in the TCA cycle.
Additional Players:
c-Myc: A transcription factor frequently overexpressed in cancer that upregulates genes involved in glutamine uptake and metabolism, including GLS.
SLC1A5 (ASCT2): A glutamine transporter that is often upregulated in cancer to facilitate increased glutamine uptake.

In many cancers there is an upregulation of key glutaminolysis components:GLS, SLC1A5, c-Myc. Many studies have found that overexpression of glutaminolysis-related enzymes (especially GLS) correlates with aggressive tumor behavior and poor patient outcomes.
Scientific Papers found: Click to Expand⟱
2542- M-Blu,    In Vitro Methylene Blue and Carboplatin Combination Triggers Ovarian Cancer Cells Death
- in-vitro, Ovarian, OV1369 - in-vitro, Ovarian, OV1946 - in-vitro, Nor, ARPE-19
BioAv↝, TumCP↓, GlutaM↓, Warburg↓, OCR↑, Glycolysis↓, ATP↓, BioAv↝, ROS↑,

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:


Redox & Oxidative Stress ⓘ

ROS↑, 1,  

Mitochondria & Bioenergetics ⓘ

ATP↓, 1,   OCR↑, 1,  

Core Metabolism/Glycolysis ⓘ

GlutaM↓, 1,   Glycolysis↓, 1,   Warburg↓, 1,  

Migration ⓘ

TumCP↓, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↝, 2,  
Total Targets: 8

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: GlutaM, Glutaminolysis
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#:12  Target#:1083  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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