Carvone / NRF2 Cancer Research Results

CRV, Carvone: Click to Expand ⟱
Features:

Carvone — Carvone is a chiral oxygenated monocyclic monoterpene ketone found mainly as enantiomeric forms in spearmint, caraway, dill, and related essential oils. It is best classified as a small-molecule natural product / volatile terpenoid flavor-fragrance compound, commonly abbreviated CRV. The biologically relevant forms are often reported as l-carvone, d-carvone, R-carvone, or S-carvone, but naming conventions are inconsistent across papers, so note the exact enantiomer stated by each source.

Primary mechanisms (ranked):

  1. Induction of cancer-cell apoptosis through p53, Bad, caspase-3 activation, PARP cleavage, and DNA-damage-associated stress signaling.
  2. Suppression of migration, adhesion, invasion, and metastatic behavior, especially through FAK-related signaling in breast cancer models.
  3. Context-dependent oxidative stress modulation, including ROS increase and DNA damage at cytotoxic in-vitro concentrations.
  4. Inhibition of proliferative survival pathways, including JAK/STAT3 in gastric cancer and p38 MAPK-related signaling in myeloma models.
  5. Cell-cycle disruption, reported as S-phase, G0/G1, or G2/M arrest depending on enantiomer, cancer model, and concentration.
  6. Possible chemopreventive activity in animal skin-carcinogenesis models, but not established as a clinically validated anticancer agent.

Bioavailability / PK relevance: Carvone is lipophilic and volatile, with oral, dermal, and inhalational exposure relevance depending on formulation. Human PK/metabolism data exist for ingestion-correlated and topical/percutaneous exposure contexts, but anticancer studies generally use concentrations that are not directly matched to validated systemic anticancer exposure. Essential-oil delivery introduces variability from enantiomer ratio, co-terpenes, oxidation products, and formulation.

In-vitro vs systemic exposure relevance: Common anticancer in-vitro effects occur at high micromolar to millimolar or microgram-per-millilitre ranges, and breast-cancer IC50 values around the millimolar range have been reported. These levels are likely above ordinary dietary flavor exposure and may exceed practical systemic exposure from food-like intake. Interpretation should therefore be concentration-constrained and formulation-dependent.

Clinical evidence status: Preclinical for cancer. Evidence includes cancer cell-line studies, animal chemoprevention/tumor models, and mechanistic studies, but no credible cancer RCTs of carvone as a therapeutic agent were identified. Human studies involving carvone-containing preparations exist for non-cancer indications or mixtures, but they should not be treated as direct anticancer evidence for isolated carvone.

Safety / regulatory status: Carvone is listed as a FEMA GRAS flavoring substance with CFR flavor-use reference, but this applies to intended flavor-use exposure, not therapeutic dosing. Major constraints include skin sensitization potential, enantiomer/formulation variability, volatile exposure, and uncertain safety at high supplemental or pharmacologic doses. Fragrance safety assessment data indicate no genotoxic concern under reviewed conditions, but l-carvone is considered a skin sensitizer.

Carvone Mechanistic Profile

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Apoptosis execution ↑ p53, ↑ Bad, ↑ cleaved caspase-3, ↑ cleaved PARP Lower sensitivity reported in some normal-cell comparisons G Pro-apoptotic cytotoxicity Most central anticancer mechanism; strongest evidence is in vitro and concentration-dependent.
2 Migration adhesion invasion ↓ migration, ↓ adhesion, ↓ invasion, ↓ FAK activation Not well-defined G Anti-metastatic phenotype Mechanistically important for breast cancer models; therapeutic leverage is plausible but not clinically validated.
3 ROS and DNA damage stress ↑ ROS, ↑ DNA damage markers, ↑ apoptotic stress Context-dependent antioxidant or cytoprotective effects reported outside cancer R/G Stress-mediated apoptosis ROS appears pro-apoptotic in several cancer contexts; antioxidant effects in non-cancer models make this axis context-dependent.
4 JAK STAT3 survival signaling ↓ JAK/STAT3 signaling in gastric cancer models Not well-defined G Reduced survival signaling Promising but model-specific; should not be generalized across all tumor types without direct evidence.
5 p38 MAPK signaling ↓ p38 MAPK-related signaling in myeloma models Not well-defined G Growth and invasion suppression Reported in myeloma; secondary/contextual relative to apoptosis and motility effects.
6 Cell cycle control ↑ arrest at S, G0/G1, or G2/M depending on model Not well-defined G Reduced proliferation Direction of arrest is inconsistent across cancer systems and enantiomer reports; keep model-specific.
7 Mitochondrial apoptosis ↓ mitochondrial membrane potential reported in some models, ↑ caspase-linked apoptosis Context-dependent R/G Intrinsic apoptosis support Relevant when mitochondrial depolarization or ROS-mediated apoptosis is directly measured.
8 Angiogenesis tumor microenvironment ↓ angiogenesis stimulus in Ehrlich tumor context Not well-defined G Reduced tumor support phenotype Evidence is less mature than direct cancer-cell apoptosis and migration data.
9 NRF2 redox adaptation ↔ or uncertain Possible cytoprotective relevance in oxidative stress models G Unresolved redox adaptation
10 Clinical Translation Constraint High in-vitro concentrations may not map to achievable systemic exposure Skin sensitization and exposure-route constraints G Limits translational confidence Bioavailability, enantiomer identity, essential-oil composition, and flavor-use versus therapeutic-dose safety are the main constraints.

P: 0–30 min R: 30 min–3 hr G: >3 hr
NRF2, nuclear factor erythroid 2-related factor 2: Click to Expand ⟱
Source: TCGA
Type: Antiapoptotic
Nrf2 is responsible for regulating an extensive panel of antioxidant enzymes involved in the detoxification and elimination of oxidative stress. Thought of as "Master Regulator" of antioxidant response.
-One way to estimate Nrf2 induction is through the expression of NQO1.
NQO1, the most potent inducer:
SFN 0.2 μM,
quercetin (2.5 μM),
curcumin (2.7 μM),
Silymarin (3.6 μM),
tamoxifen (5.9 μM),
genistein (6.2 μM ),
beta-carotene (7.2μM),
lutein (17 μM),
resveratrol (21 μM),
indol-3-carbinol (50 μM),
chlorophyll (250 μM),
alpha-cryptoxanthin (1.8 mM),
and zeaxanthin (2.2 mM)

1. Raising Nrf2 enhances the cell's antioxidant defenses and ↓ROS. This strategy is used to decrease chemo-radio side effects.
2. Downregulating Nrf2 lowers antioxidant defenses and ↑ROS. In cancer cells this leads to DNA damage, and cell death.
3. However there are some cases where increasing Nrf2 paradoxically causes an increase in ROS (cancer cells). Such as cases of Mitochondial overload, signal crosstalk, reductive stress

-In some cases, Nrf2 is overexpressed in cancer cells, which can lead to the activation of genes involved in cell proliferation, angiogenesis, and metastasis. This can contribute to the development of resistance to chemotherapy and targeted therapies.
-Increased Nrf2 expression: Lung, Breast, Colorectal, Prostrate.
Decreased Nrf2 expression: Skine, Liver, Pancreatic.
-Nrf2 is a cytoprotective transcription factor which demonstrated both a negative effect as well as a positive effect on cancer
- "promotes Nrf2 translocation from the cytoplasm to the nucleus," means facilitates the movement of Nrf2 into the nucleus, thereby enhancing the cell's antioxidant and cytoprotective responses. -Major regulator of Nrf2 activity in cells is the cytosolic inhibitor Keap1.

Nrf2 Inhibitors and Activators
Nrf2 Inhibitors: Brusatol, Luteolin, Trigonelline, VitC, Retinoic acid, Chrysin
Nrf2 Activators: SFN, OPZ EGCG, Resveratrol, DATS, CUR, CDDO, Api
- potent Nrf2 inducers from plants include sulforaphane, curcumin, EGCG, resveratrol, caffeic acid phenethyl ester, wasabi, cafestol and kahweol (coffee), cinnamon, ginger, garlic, lycopene, rosemany

Nrf2 plays dual roles in that it can protect normal tissues against oxidative damage and can act as an oncogenic protein in tumor tissue.
– In healthy tissues, NRF2 activation helps protect cells from oxidative damage and maintains cellular homeostasis.
– In many cancers, constitutive activation of NRF2 (often through mutations in NRF2 itself or loss-of-function mutations in KEAP1) leads to an enhanced antioxidant capacity.
– This upregulation can promote tumor cell survival by enabling cancer cells to thrive under oxidative stress, resist chemotherapeutic agents, and sustain metabolic reprogramming.
– Elevated NRF2 levels have been implicated in promoting tumor growth, metastasis, and resistance to therapy in various malignancies.
– High or sustained NRF2 activity is frequently associated with aggressive tumor phenotypes, poorer prognosis, and decreased overall survival in several cancer types.
– While its activation is essential for protecting normal cells from oxidative stress, aberrant or sustained NRF2 activation in tumor cells can lead to enhanced survival, therapeutic resistance, and tumor progression.

NRF2 inhibitors: (to decrease antioxidant defenses and increase cell death from ROS).
-Brusatol: most cited natural inhibitors of Nrf2.
-Luteolin: luteolin can reduce Nrf2 activity in specific cancer models and may enhance cell sensitivity to chemotherapy. However, luteolin is also known as an antioxidant, and its influence on Nrf2 can sometimes be context dependent.
-Apigenin: certain studies to down‑regulate Nrf2 in cancer cells: Dose and context dependent .
-Oridonin:
-Wogonin: although its effects might be cell‑ and dose‑specific.
- Withaferin A

Scientific Papers found: Click to Expand⟱
6529- CRV,    D-Carvone Attenuates CCl4-Induced Liver Fibrosis in Rats by Inhibiting Oxidative Stress and TGF-ß 1/SMAD3 Signaling Pathway
- in-vivo, Nor, NA
*ALAT↓, *AST↓, *MDA↓, *SOD↑, *GSH↑, *TAC↑, *eff↑, *TGF-β1↓, *SMAD3↓, *MMP9↑, *NRF2↑, *antiOx↑, *hepatoP↑, *Inflam↓, *NF-kB↓, *NO↓, *cAMP↑, *ROS↓,
6531- CRV,    D-carvone attenuates LPS-induced acute lung injury via TLR4/NF-κB and Nrf2/HO-1 signaling pathways in rats
- in-vivo, Nor, NA
*TRAF1↓, *IL1β↓, *TNF-α↓, *ROS↓, *MDA↓, *GSH↑, *SOD↑, *Inflam↓, *NRF2↑, *Bcl-2↑, *IL8↓, *antiOx↑,

Showing Research Papers: 1 to 2 of 2

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 2

Pathway results for Effect on Cancer / Diseased Cells:


Total Targets: 0

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 2,   GSH↑, 2,   MDA↓, 2,   NRF2↑, 2,   ROS↓, 2,   SOD↑, 2,   TAC↑, 1,  

Core Metabolism/Glycolysis ⓘ

ALAT↓, 1,   cAMP↑, 1,  

Cell Death ⓘ

Bcl-2↑, 1,  

Migration ⓘ

MMP9↑, 1,   SMAD3↓, 1,   TGF-β1↓, 1,  

Angiogenesis & Vasculature ⓘ

NO↓, 1,  

Immune & Inflammatory Signaling ⓘ

IL1β↓, 1,   IL8↓, 1,   Inflam↓, 2,   NF-kB↓, 1,   TNF-α↓, 1,   TRAF1↓, 1,  

Drug Metabolism & Resistance ⓘ

eff↑, 1,  

Clinical Biomarkers ⓘ

ALAT↓, 1,   AST↓, 1,  

Functional Outcomes ⓘ

hepatoP↑, 1,  
Total Targets: 24

Scientific Paper Hit Count for: NRF2, nuclear factor erythroid 2-related factor 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#:411  Target#:226  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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