Ginseng / OXPHOS Cancer Research Results

Gins, Ginseng: Click to Expand ⟱
Features:

Ginseng — a medicinal root from the genus Panax, principally Asian/Korean ginseng (Panax ginseng) and American ginseng (Panax quinquefolius). It is a botanical natural health product containing multiple pharmacologically active constituents, especially triterpenoid saponins called ginsenosides, including Rb1, Rb2, Rc, Rd, Re, Rg1 and, depending strongly on processing, Rg3, Rg5 and related compounds; intestinal metabolism also generates metabolites such as Compound K. Standard abbreviations include PG for Panax ginseng, KRG for Korean red ginseng and AG for American ginseng. White, red, fermented and heat-processed ginseng have substantially different ginsenoside profiles and should not be assumed mechanistically equivalent. Anticancer effects attributed to “ginseng” are predominantly derived from preclinical studies of specific ginsenosides such as Rg3 and Rh2 rather than conventional whole-root exposure.

Primary mechanisms (ranked):

  1. Suppression of oncogenic PI3K/Akt and related MAPK growth-survival signaling by selected ginsenosides, particularly Rg3 and Rh2.
  2. Induction of mitochondrial apoptosis through altered BCL-2/BAX balance, mitochondrial dysfunction and caspase activation.
  3. Suppression of tumor invasion, angiogenesis and metastatic signaling, including VEGF-related pathways, particularly by Rg3.
  4. Redox modulation: selected ginsenosides can increase mitochondrial ROS sufficiently to trigger apoptosis in cancer cells while ginseng/ginsenosides more commonly activate antioxidant defenses and reduce oxidative stress in nonmalignant tissues.
  5. Suppression of NF-κB-associated inflammatory and prosurvival signaling, with corresponding modulation of inflammatory cytokines.
  6. Chemo- and radiosensitization reported for selected ginsenosides, particularly Rg3, but predominantly at the preclinical level.
  7. Secondary NRF2/HO-1 antioxidant modulation, particularly relevant to normal-cell cytoprotection; its effect within tumors is context-dependent and may theoretically protect some malignant cells.

Bioavailability / PK relevance: Native ginsenosides generally have low and highly variable oral systemic exposure because of limited intestinal absorption and extensive gut-microbiota metabolism. Rb1 and related compounds can be converted sequentially to more readily absorbed metabolites including Compound K. Consequently, microbiome composition, ginseng species, processing and formulation strongly influence systemic exposure. Red or heat-processed ginseng contains substantially more Rg3/Rg5 than ordinary white ginseng.

In-vitro vs systemic exposure relevance: Many anticancer experiments with Rg3, Rh2 and related ginsenosides use approximately micromolar to tens-of-micromolar concentrations. Following conventional oral ginseng, circulating concentrations of many parent ginsenosides are substantially lower and exposure is frequently metabolite-driven. Therefore direct extrapolation of isolated-ginsenoside cancer-cell cytotoxicity to oral whole-root ginseng is weak. Pharmacologically enriched, fermented or purified ginsenoside products constitute materially different exposures.

Clinical evidence status: Direct anticancer efficacy of ordinary oral ginseng remains unestablished. A large phase III randomized trial supports American ginseng at 2 g/day for reduction of cancer-related fatigue, making supportive oncology its strongest cancer-related human evidence. Clinical literature on purified/enriched Rg3 combined with chemotherapy exists, particularly from China, but does not establish ordinary ginseng root as an anticancer therapy. Ginseng is marketed as a natural health/herbal product rather than an approved anticancer drug. Health Canada has specifically concluded that available evidence was insufficient to establish acceptable conditions for standardized Panax ginseng extract in supplemented foods when total ginsenoside intake would exceed 8 mg/day.

Ginseng (Panax ginseng) – This herb has been studied for its ability to enhance the immune system.
-Antioxidant Properties: Ginseng contains ginsenosides, which have antioxidant properties.
-Immune System Support
-Inhibition of Tumor Growth
-Chemopreventive Effects
-Synergistic Effects with Cancer Treatments: ginseng may enhance the effectiveness of certain cancer treatments, such as chemotherapy, and may help reduce side effect
Dose: Standardized Extract:
Dosage: extract containing 4-7% ginsenosides 200-400mg/d
Dried Root:1-2g/d
Tea: 1-2g dried root, 1-3x/d

Ginseng Cancer-Relevant Mechanisms

Rank Pathway / Axis Cancer Cells Normal Cells Primary Effect Notes / Interpretation
1 PI3K/Akt survival signaling ↓ ↔ / ↑ (context-dependent) Reduced proliferation and survival One of the most reproducible anticancer axes for Rg3 and Rh2. Evidence largely concerns isolated ginsenosides rather than conventional whole-root ginseng.
2 Mitochondrial apoptosis ↑ ↔ / ↓ injury Apoptotic cell death Selected ginsenosides increase BAX/BCL-2 ratio, mitochondrial dysfunction and caspase-9/caspase-3 activation. Usually concentration-dependent.
3 Angiogenesis and VEGF signaling ↓ ↔ Reduced tumor vascularization Particularly associated with Rg3; inhibition of VEGF signaling and endothelial responses has been demonstrated preclinically.
4 NF-κB inflammatory and survival signaling ↓ ↓ excessive activation Reduced inflammation and prosurvival signaling May suppress inflammatory cytokines, invasion and treatment resistance. Magnitude varies substantially among individual ginsenosides and preparations.
5 Mitochondrial ROS increase ↑ (dose-dependent) ↓ oxidative stress Oxidative apoptosis in cancer cells Rh2 can induce mitochondrial ROS and apoptosis. This should not be generalized to all ginseng preparations because antioxidant effects predominate in many normal-tissue models.
6 Migration and invasion ↓ ↔ Reduced metastatic phenotype Selected ginsenosides suppress migration, invasion and associated signaling in multiple experimental cancer models.
7 Chemosensitization ↑ treatment response ↔ / ↓ toxicity (model-dependent) Enhanced chemotherapy response Rg3 has enhanced responses to agents including 5-FU, cisplatin and doxorubicin in experimental systems. Evidence for whole-root ginseng is substantially weaker.
8 Radiosensitization ↑ (model-dependent) ↔ / radioprotection reported Enhanced radiation response Rg3 can enhance radiation-induced tumor-cell killing through pathways including NF-κB suppression, while other ginsenosides may protect normal tissue from radiation injury.
9 NRF2 antioxidant defense ↔ / ↑ (context-dependent) ↑ Antioxidant cytoprotection Secondary mechanism. Potentially beneficial in normal tissue but mechanistically ambiguous in cancer because NRF2 activation can also support tumor antioxidant defenses.
10 Clinical Translation Constraint — — Predominantly adjunctive use Species, processing and ginsenoside composition vary markedly. Oral parent-ginsenoside exposure is low and microbiome-dependent, while many anticancer experiments use purified Rg3/Rh2 at substantially higher concentrations. Direct tumor-control efficacy of ordinary oral ginseng has not been established.


Ginseng and Alzheimer’s disease: Panax ginseng, Korean red ginseng and individual ginsenosides have substantial preclinical neuroprotective evidence involving amyloid processing, tau phosphorylation, neuroinflammation, oxidative stress, synaptic signaling and neurotrophic pathways. Small Korean clinical studies have reported improvements in cognitive scores, but these studies were generally small, open-label or otherwise at substantial risk of bias. Current evidence is insufficient to classify ginseng as a disease-modifying treatment for Alzheimer’s disease.

Primary mechanisms (ranked):

  1. Reduction of amyloidogenic processing and Aβ accumulation through modulation of APP-processing enzymes and Aβ clearance pathways.
  2. Reduction of tau phosphorylation and aggregation through multiple kinase/phosphatase pathways.
  3. Enhancement of synaptic plasticity and neurotrophic signaling including BDNF/TrkB-related pathways.
  4. Suppression of microglial activation, NF-κB signaling and neuroinflammatory cytokine production.
  5. Reduction of neuronal oxidative stress and mitochondrial dysfunction through antioxidant pathways including NRF2.
  6. Cholinergic support and modulation of neurotransmission.

Clinical evidence status: Small human studies of Korean red ginseng have reported improvements in MMSE, ADAS-cog and related cognitive measures, but adequately powered modern blinded placebo-controlled Alzheimer trials are lacking. The evidence remains preliminary and does not establish prevention of neurodegeneration or disease modification.


Ginseng Alzheimer-Relevant Mechanisms

Rank Pathway / Axis Modulation Primary Effect Notes / Interpretation
1 Amyloid processing and Aβ burden ↓ Reduced amyloidogenic pathology Ginsenosides and processed ginseng can influence APP processing, BACE activity and Aβ clearance in preclinical systems.
2 Tau phosphorylation and aggregation ↓ Reduced tau pathology Multiple ginseng constituents have reduced tau phosphorylation in experimental systems; red ginseng can also interfere with tau aggregation in vitro.
3 BDNF and TrkB neuroplasticity ↑ Synaptic and neurotrophic support Ginsenosides can increase neurotrophic signaling and support learning and memory in experimental models.
4 Neuroinflammation and NF-κB ↓ Reduced microglial inflammatory signaling Associated with reductions in inflammatory cytokines and activated microglial responses in preclinical models.
5 NRF2 antioxidant defense ↑ Reduced oxidative neuronal injury Activation of antioxidant-response pathways contributes to neuronal protection in several ginseng and ginsenoside models.
6 Oxidative stress and ROS ↓ Reduced neuronal oxidative damage Generally antioxidant in neuronal and other nonmalignant tissues, unlike the pro-oxidant response produced by some ginsenosides in cancer cells at high concentrations.
7 Cholinergic signaling ↑ Improved neurotransmission Modulation of acetylcholine synthesis, release and degradation has been reported, although this mechanism is less clinically established than standard cholinesterase inhibition.
8 Clinical Translation Constraint — Preliminary human evidence Human Alzheimer studies are small and methodologically limited. Different species, red-ginseng processing and purified ginsenosides cannot be considered interchangeable.


OXPHOS, Oxidative phosphorylation: Click to Expand ⟱
Source:
Type:
Oxidative phosphorylation (or phosphorylation) is the fourth and final step in cellular respiration.
Alterations in phosphorylation pathways result in serious outcomes in cancer. Many signalling pathways including Tyrosine kinase, MAP kinase, Cadherin-catenin complex, Cyclin-dependent kinase etc. are major players of the cell cycle and deregulation in their phosphorylation-dephosphorylation cascade has been shown to be manifested in the form of various types of cancers.
Many tumors exhibit a well-known metabolic shift known as the Warburg effect, where glycolysis is favored over OxPhos even in the presence of oxygen. However, this is not universal.
Many cancers, including certain subpopulations like cancer stem cells, still rely on OXPHOS for energy production, biosynthesis, and survival.

– In several cancers, especially during metastasis or in tumors with high metabolic plasticity, OxPhos can remain active or even be upregulated to meet energy demands.

In some cancers, high OxPhos activity correlates with aggressive features, resistance to standard therapies, and poor outcomes, particularly when tumor cells exploit mitochondrial metabolism for survival and metastasis.

– Conversely, low OxPhos activity can be associated with a reliance on glycolysis, which is also linked with rapid tumor growth and certain adverse prognostic features.

Inhibiting oxidative phosphorylation is not a universal strategy against all cancers. Targeting OXPHOS can potentially disrupt the metabolic flexibility of cancer cells, leading to their death or making them more susceptible to other treatments.
Since normal cells also rely on OXPHOS, inhibitors must be carefully targeted to avoid significant toxicity to healthy tissues.
Not all tumors are the same. Some may be more glycolytic, while others depend more on mitochondrial metabolism. Therefore, metabolic profiling of tumors is crucial before adopting this strategy. Inhibiting OXPHOS is being explored in combination with other treatments (such as chemo- or immunotherapies) to improve efficacy and overcome resistance.

In cancer cells, metabolic reprogramming is a hallmark where cells often rely on glycolysis (known as the Warburg effect); however, many cancer types also depend on OXPHOS for energy production and survival. Targeting OXPHOS(using inhibitor) to increase the production of reactive oxygen species (ROS) can selectively induce oxidative stress and cell death in cancer cells.

-One side effect of increased OXPHOS is the production of reactive oxygen species (ROS).
-Many cancer cells therefore simultaneously upregulate antioxidant systems to mitigate the damaging effects of elevated ROS.
-Increase in oxidative phosphorylation can inhibit cancer growth.
Scientific Papers found: Click to Expand⟱
7282- Gins,    Ginsenoside Rh2 stimulates the production of mitochondrial reactive oxygen species and induces apoptosis of cervical cancer cells by inhibiting mitochondrial electron transfer chain complex
- in-vitro, Cerv, NA
compI↓, compIII↓, ETC↓, ROS↑, Apoptosis↑, tumCV↓, selectivity↑, MMP↓, ATP↓, OXPHOS↓, ECAR↓, Glycolysis↓,

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(tgid=1) ⓘ

compI↓, 1,   OXPHOS↓, 1,   ROS↑, 1,  

Mitochondria & Bioenergetics(tgid=3) ⓘ

ATP↓, 1,   compIII↓, 1,   ETC↓, 1,   MMP↓, 1,  

Core Metabolism/Glycolysis(tgid=4) ⓘ

ECAR↓, 1,   Glycolysis↓, 1,  

Cell Death(tgid=5) ⓘ

Apoptosis↑, 1,  

Transcription & Epigenetics(tgid=7) ⓘ

tumCV↓, 1,  

Drug Metabolism & Resistance(tgid=21) ⓘ

selectivity↑, 1,  
Total Targets: 12

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: OXPHOS, Oxidative phosphorylation
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#:219  Target#:230  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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