Melatonin / MFN2 Cancer Research Results

MEL, Melatonin: Click to Expand ⟱
Features:
Hormone in the body made by pineal gland.
• Melatonin is a potent antioxidant. It neutralizes reactive oxygen species (ROS) and reactive nitrogen species (RNS), which are involved in DNA damage and cancer progression.
• Melatonin has been shown to modulate apoptotic pathways by influencing mitochondrial permeability, cytochrome c release, and caspase activation.
• In several cancer cell models, melatonin appears to promote apoptosis in malignant cells while sparing normal cells.

The most well-known indolamines are serotonin and melatonin, both of which play significant roles in regulating mood, sleep, and overall mental well-being.

Melatonin doses (20 mg to even 40 mg per day), often given as an adjuvant treatment for cancer.
-The plasma half-life of melatonin is generally in the range of approximately 20 to 60 minutes
-It has been suggested that administering melatonin at the appropriate phase of the circadian cycle may enhance its anti-tumor activity and reduce the side effects of chemotherapy and radiation therapy.

Bio-availability: Oral melatonin has a low and variable bio-availability (often estimated between 3% and 33%), which means that only a fraction of the ingested dose reaches the bloodstream unchanged.

For proOxidant effect might need >10uM, which might be 100mg dose (assuming 10% bio-availability) Might also be required X10 levels?
-It remains unknown whether the pro-oxidant action exists in vivo. the vast majority of evidence indicates that melatonin is a potent antioxidant in vivo even at pharmacological concentrations.

Interactions:
-Melatonin could potentially add to the blood pressure–lowering properties of antihypertensive drugs.
-Patients using insulin should be monitored for changes in blood glucose levels.
-Melatonin might interact with drugs like warfarin, aspirin, or clopidogrel.(antiplatelet)


Melatonin Cancer Relevant Pathways
Rank Pathway / Axis Cancer Cells Normal Cells Label Primary Interpretation Notes
1 Circadian signaling (MT1 / MT2 receptors) ↓ proliferative circadian disruption ↑ circadian synchronization Driver Chronobiology normalization Melatonin restores circadian control; cancer cells lose growth advantages from circadian dysregulation
2 Reactive oxygen species (ROS) ↓ ROS (baseline); context-dependent ↑ stress signaling ↓ ROS (strong buffering) Driver Antioxidant dominance with signaling effects Melatonin is a potent direct and indirect antioxidant; cancer cells may still undergo stress-mediated growth inhibition
3 Mitochondrial function ↓ metabolic flexibility; ↑ apoptosis sensitivity ↑ mitochondrial efficiency Secondary Mitochondrial stabilization vs vulnerability Melatonin improves mitochondrial function in normal cells while limiting metabolic plasticity in cancer cells
4 Estrogen signaling (ERα modulation) ↓ estrogen-driven proliferation ↔ minimal Secondary Hormone-dependent growth suppression Particularly relevant in breast and hormone-responsive cancers
5 NF-κB signaling ↓ inflammatory / survival signaling ↓ inflammatory tone Secondary Anti-inflammatory modulation NF-κB suppression contributes to reduced tumor-promoting inflammation
6 Cell cycle regulation ↓ proliferation / ↑ arrest ↔ spared Phenotypic Cytostatic growth control Growth inhibition reflects upstream circadian and hormonal effects
7 Apoptosis sensitivity ↑ sensitivity to apoptosis (chemo/RT) ↓ apoptosis Phenotypic Therapy sensitization Melatonin enhances response to chemo- and radiotherapy while protecting normal tissue


MFN2, Mitofusin 2: Click to Expand ⟱
Source:
Type:

MFN1, MFN2, and OPA1 are mostly AD / neurodegeneration-relevant pathway targets: In AD, the general pattern is: fusion proteins MFN1, MFN2, and OPA1 tend to be reduced or functionally impaired, while fission signaling such as DRP1/FIS1 is often increased, contributing to fragmented mitochondria, synaptic injury, oxidative stress, and impaired bioenergetics

MFN1, MFN2, and OPA1 are mitochondrial fusion regulators. MFN1 and MFN2 mediate outer mitochondrial membrane fusion, while OPA1 mediates inner mitochondrial membrane fusion and helps maintain cristae structure. In Alzheimer’s disease and related neurodegenerative models, mitochondrial dynamics are commonly shifted toward excessive fragmentation, with reduced or impaired fusion signaling and increased fission stress. Restoring MFN2/OPA1/MFN1 activity may help preserve mitochondrial network integrity, oxidative phosphorylation, neuronal transport, calcium handling, and synaptic resilience.

Target / Pathway Primary Disease Relevance Normal Function Observed / Suspected Change in AD Therapeutic Direction Database Interpretation Evidence Strength Notes for Product Screening
MFN1 Mostly AD / neurodegeneration; secondary cancer relevance Outer mitochondrial membrane fusion protein. Works with MFN2 to tether and fuse adjacent mitochondria, helping maintain mitochondrial network integrity and mitochondrial DNA/protein complementation. Generally reported as reduced or functionally impaired in AD-related mitochondrial dynamics imbalance, contributing to mitochondrial fragmentation and reduced neuronal bioenergetic resilience. Support / restore mitochondrial fusion where excessive fission and mitochondrial fragmentation are present. Pathway target rather than product. Useful as part of a broader “mitochondrial fusion support” or “anti-fragmentation” pathway entry. Moderate Track products that increase MFN1 expression, improve mitochondrial network morphology, reduce DRP1-driven fragmentation, or restore fusion/fission balance.
MFN2 Strong AD / neurodegeneration relevance; also cancer and metabolic relevance Outer mitochondrial membrane fusion protein. Also involved in mitochondria-ER contact regulation, calcium handling, mitophagy-related quality control, mitochondrial trafficking, and cellular stress adaptation. MFN2 dysfunction or downregulation is associated with impaired mitochondrial fusion, abnormal mitochondria-ER communication, calcium stress, oxidative stress, synaptic vulnerability, and possibly amyloid/tau-associated mitochondrial injury. Usually upmodulation / restoration is desirable in AD models where mitochondrial fragmentation, poor transport, or excessive fission is present. High-priority AD target. Best entered as a mitochondrial dynamics, fusion, ER-mitochondria contact, and mitophagy-quality-control target. Moderate-Strong Track products that increase MFN2, improve mitochondrial elongation, reduce Aβ/tau-induced mitochondrial fragmentation, improve calcium homeostasis, or restore mitochondrial transport in neurons.
OPA1 Strong AD / neurodegeneration relevance; also apoptosis and cancer relevance Inner mitochondrial membrane fusion protein. Maintains cristae structure, supports oxidative phosphorylation, preserves mitochondrial membrane organization, and helps regulate cytochrome-c release during apoptosis. OPA1 loss or cleavage can reduce inner membrane fusion, destabilize cristae, impair oxidative phosphorylation, increase mitochondrial fragmentation, and sensitize neurons to synaptic and metabolic stress. Support / stabilize OPA1 activity, especially long-form fusion-active OPA1, where mitochondrial stress causes excessive OPA1 cleavage and fragmentation. High-priority AD target. Best entered under mitochondrial fusion, cristae integrity, oxidative phosphorylation, and apoptosis-resistance pathways. Moderate-Strong Track products that preserve OPA1, reduce pathological OPA1 cleavage, improve cristae integrity, improve ATP production, or reduce mitochondrial apoptosis signaling.


Scientific Papers found: Click to Expand⟱
6419- MEL,    The potential influence of melatonin on mitochondrial quality control: a review
- Review, Nor, NA
*mt-ACC⇅, *PKM1↑, *PKM2↑, *Glycolysis↝, *PDKs↑, *FAO↑, *ETC↑, *OXPHOS↑, *ATP↑, Glycolysis↓, OXPHOS↑, *Ca+2↓, *ROS↓, *antiOx↑, *SOD2↑, *GPx↑, *Catalase↑, *MFN1↑, *MFN2↑, *OPA1↑, *YAP/TEAD↑, *Hippo↑, *SIRT1↑, *PGC-1α↑, *DRP1/DNM1L↓,

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 ⓘ

OXPHOS↑, 1,  

Core Metabolism/Glycolysis ⓘ

Glycolysis↓, 1,  
Total Targets: 2

Pathway results for Effect on Normal Cells:


NA, unassigned ⓘ

DRP1/DNM1L↓, 1,   MFN1↑, 1,   MFN2↑, 1,   OPA1↑, 1,  

Redox & Oxidative Stress ⓘ

antiOx↑, 1,   Catalase↑, 1,   GPx↑, 1,   OXPHOS↑, 1,   ROS↓, 1,   SOD2↑, 1,  

Mitochondria & Bioenergetics ⓘ

ATP↑, 1,   ETC↑, 1,   PGC-1α↑, 1,  

Core Metabolism/Glycolysis ⓘ

mt-ACC⇅, 1,   FAO↑, 1,   Glycolysis↝, 1,   PDKs↑, 1,   PKM1↑, 1,   PKM2↑, 1,   SIRT1↑, 1,  

Cell Death ⓘ

Hippo↑, 1,   YAP/TEAD↑, 1,  

Migration ⓘ

Ca+2↓, 1,  
Total Targets: 23

Scientific Paper Hit Count for: MFN2, Mitofusin 2
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#:122  Target#:1490  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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