Database Query Results : Ajoene (compound of Garlic), ,

Ajoene, Ajoene (compound of Garlic): Click to Expand ⟱
Features:
Ajoene is a compound found in garlic, specifically in the oil extracted from crushed garlic cloves. It has been studied for its potential anti-cancer properties. Research suggests that ajoene may have several mechanisms by which it can inhibit the growth of cancer cells and induce apoptosis (cell death).

Ajoene — an organosulfur secondary metabolite formed from garlic (Allium sativum) after crushing/processing (an allicin-derived transformation product; typically present as E/Z isomers). It is a thiol-reactive small molecule (vinyl-disulfide sulfoxide motif) studied mainly as a cytotoxic/anti-migratory agent in cancer models and as a topical antifungal. Classification: small-molecule natural product (garlic organosulfur compound). Abbreviation(s): none universally standard; often specified as E-ajoene / Z-ajoene.

Primary mechanisms (ranked):

  1. Protein cysteine modification (S-thiolation / covalent adduct formation on thiol-containing targets), with downstream disruption of signaling and cytoskeletal programs
  2. Pro-oxidant stress in cancer cells (ROS/H2O2 increase, redox-thiol perturbation) that can trigger intrinsic mitochondrial apoptosis
  3. Cell-cycle perturbation (commonly G2/M arrest) and microtubule/cytoskeletal interference (model-dependent; isomer-dependent)
  4. Anti-migration/anti-invasion phenotypes linked to intermediate filament (vimentin) network remodeling (context-dependent)
  5. Secondary: NRF2-driven antioxidant response induction in some non-malignant/epithelial contexts (dose- and context-dependent)

Bioavailability / PK relevance: Systemic human PK is poorly defined; ajoene is typically discussed as an allicin-derived downstream product and allicin itself is not detected in human serum after raw garlic ingestion in classic studies. Practical translation in oncology is therefore most credible for local/topical exposure or for optimized analogues; oral dietary exposure may not reproduce common in-vitro micromolar conditions reliably.

In-vitro vs systemic exposure relevance: Many anticancer studies use ~low–tens of µM in vitro; whether these levels are achievable systemically from diet/supplements is uncertain. Topical delivery can reach higher local concentrations (e.g., skin lesions/fungal infections), and small human topical studies exist.

Clinical evidence status: Predominantly preclinical (cell culture and animal models). Small human topical evidence exists for basal cell carcinoma tumor shrinkage and for fungal skin infections (e.g., tinea pedis; chromoblastomycosis). No robust systemic oncology RCT evidence.

Approximate ajoene content values for different parts of the garlic plant:
Garlic bulbs: 1-5 mg of ajoene per clove
Garlic scapes (green shoots): 0.5-2 mg of ajoene per 100g
Garlic chives (leaves): 0.5-2 mg of ajoene per 100g
Garlic microgreens: 1-5 mg of ajoene per 100g

μM concentrations of ajoene that have been reported to exhibit biological activity:
Antimicrobial activity: 1-10 μM
Antioxidant activity: 1-50 μM
Anti-inflammatory activity: 5-20 μM
Anticancer activity: 10-50 μM
Cardiovascular health: 5-20 μM

Approximate unverified μM concentrations of ajoene that can be achieved with different amounts of garlic or garlic chives:
1 clove of garlic (3g): approximately 1-5 μM of ajoene
1 tablespoon of minced garlic (15g): approximately 5-15 μM of ajoene
1 cup of chopped garlic (100g): approximately 30-60 μM of ajoene
1 tablespoon of chopped garlic chives (15g): approximately 0.5-2 μM of ajoene
1 cup of chopped garlic chives (100g): approximately 5-10 μM of ajoene
1 ounce (28g) of garlic microgreens: approximately 10-30 μM of ajoene
1 cup of garlic microgreens (100g): approximately 30-60 μM of ajoene
1 ounce (28g) of garlic chive microgreens: approximately 5-15 μM of ajoene
1 cup of garlic chive microgreens (100g): approximately 15-30 μM of ajoene

Ajoene — mechanistic axes relevant to oncology translation

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Protein thiol reactivity and covalent cysteine targeting ↑ thiol stress; ↑ protein adducts (model-dependent) ↔ to ↑ adaptive antioxidant response (context-dependent) P/R Upstream “initiator” chemistry that can rewire multiple pathways Consistent with ajoene acting as a thiol-reactive electrophile; downstream effects vary by target set and exposure.
2 ROS and peroxide signaling ↑ ROS/H2O2 (dose-dependent); ↑ oxidative damage (high concentration only) ↔ or ↑ cytoprotective programs (dose-dependent) P Oxidative stress–linked cytotoxicity in susceptible cancer models Classic leukemia data show apoptosis accompanied by ROS and NF-κB activation; magnitude and direction can be model- and dose-dependent.
3 Mitochondria and intrinsic apoptosis ↑ mitochondrial apoptosis; ↑ caspase cascade (model-dependent) ↔ (selectivity reported in some systems) R/G Execution of cell death following redox/thiol perturbation Topical basal cell carcinoma (BCC) work supports mitochondria-dependent apoptosis signaling in vivo/ex vivo.
4 NF-κB signaling ↑ NF-κB activity (model-dependent) ↔ P/R Stress-response transcriptional program NF-κB activation can be pro-survival or pro-death depending on context; in some ajoene models it co-occurs with apoptosis rather than preventing it.
5 Cell cycle control and microtubule/cytoskeleton dynamics ↑ G2/M arrest (model-dependent); ↓ proliferation ↔ R/G Anti-proliferative cytostasis/cytotoxicity Reported links include microtubule interference and mitotic blockade; may vary by isomer and cellular background.
6 Invasion and migration and vimentin intermediate filaments ↓ invasion/migration (requires vimentin); ↑ vimentin remodeling (context-dependent) ↔ G Anti-metastatic phenotype in vitro Non-cytotoxic ajoene concentrations can remodel vimentin networks and suppress invasion/migration in vimentin-positive models.
7 NRF2 antioxidant response (secondary) ↔ to ↑ NRF2 targets (context-dependent) ↑ NRF2-driven cytoprotection (context-dependent) R/G Adaptive redox buffering Ajoene can activate NRF2 and induce glutathione-related enzymes in hepatic/epithelial models; this may oppose pro-oxidant cytotoxicity at lower stress levels.
8 Chemosensitization ↑ apoptosis with chemotherapy (model-dependent) Unknown R/G Potential adjunct effect Reported in leukemia models (including more resistant compartments) but not established clinically for systemic cancer therapy.
9 Clinical Translation Constraint Systemic exposure likely limited/variable from diet; many in-vitro studies use µM levels; isomer mixture and chemical stability complicate reproducibility; best-supported human data are topical (skin/fungal indications). Safety constraint: antiplatelet activity raises bleeding-risk concerns with anticoagulants/antiplatelets. — Feasibility boundary Translation most plausible for topical/local delivery or for engineered analogues with validated blood stability and exposure.


Scientific Papers found: Click to Expand⟱
252- Ajoene,    Ajoene, a Compound of Garlic, Induces Apoptosis in Human Promyeloleukemic Cells, Accompanied by Generation of Reactive Oxygen Species and Activation of Nuclear Factor κB
- in-vitro, AML, HL-60
H2O2↑, NF-kB↑, ROS↑,
5340- Ajoene,    Ajoene, a compound of garlic, induces apoptosis in human promyeloleukemic cells, accompanied by generation of reactive oxygen species and activation of nuclear factor kappaB
- in-vitro, AML, NA
Apoptosis↑, selectivity↑, H2O2↑, NF-kB↑,
5341- Ajoene,    Ajoene (natural garlic compound): a new anti-leukaemia agent for AML therapy
- Review, AML, NA
eff↑, AntiThr↑, Bacteria↓, LDH↓, TumCP↓, TumCCA↑, Bcl-2↓, Cyt‑c↑, Casp3↑,
5342- Ajoene,    The garlic-derived organosulfur component ajoene decreases basal cell carcinoma tumor size by inducing apoptosis
- in-vivo, BCC, NA
TumVol↓, Bcl-2↓, Apoptosis↑,
5343- Ajoene,    The garlic compound ajoene covalently binds vimentin, disrupts the vimentin network and exerts anti-metastatic activity in cancer cells
- in-vitro, Cerv, HeLa - in-vitro, BC, MDA-MB-231
Vim↑, TumCI↓, TumCMig↓, TumMeta↓, Vim↓, other↝,
5344- Ajoene,    Ajoene, a Stable Garlic By-Product, Has an Antioxidant Effect through Nrf2-Mediated Glutamate-Cysteine Ligase Induction in HepG2 Cells and Primary Hepatocytes
- in-vitro, Nor, HepG2
*Nrf1↑, *PKCδ↑, *GSH↑, *antiOx↑,

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 6

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

H2O2↑, 2,   ROS↑, 1,  

Core Metabolism/Glycolysis ⓘ

LDH↓, 1,  

Cell Death ⓘ

Apoptosis↑, 2,   Bcl-2↓, 2,   Casp3↑, 1,   Cyt‑c↑, 1,  

Transcription & Epigenetics ⓘ

AntiThr↑, 1,   other↝, 1,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Migration ⓘ

TumCI↓, 1,   TumCMig↓, 1,   TumCP↓, 1,   TumMeta↓, 1,   Vim↓, 1,   Vim↑, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↑, 2,  

Drug Metabolism & Resistance ⓘ

eff↑, 1,   selectivity↑, 1,  

Clinical Biomarkers ⓘ

LDH↓, 1,  

Functional Outcomes ⓘ

TumVol↓, 1,  

Infection & Microbiome ⓘ

Bacteria↓, 1,  
Total Targets: 22

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   GSH↑, 1,   Nrf1↑, 1,  

Migration ⓘ

PKCδ↑, 1,  
Total Targets: 4

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#:196  Target#:%  State#:%  Dir#:%
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