Dandelion Root / COX2 Cancer Research Results

DRE, Dandelion Root: Click to Expand ⟱
Features:
Dandelion root (Taraxacum officinale)
-Various phytochemicals, including flavonoids and phenolic compounds, which have antioxidant properties.
-Root extract can induce apoptosis
-Anti-inflammatory properties
-Immune System Support
Dosage: dried root 2-8g/d. Extract 250-500mg/d Tea 1-2g, 1-3x/d
aqueous Dandelion flower extracts (DFE), dandelion leaf extract (DLE), and dandelion root extract (DRE) may have different effects.
Common Names: Blowball, Puffball, Lion's tooth, Pu gong ying, Swine snout, Wild endive
Taraxacum officinale is rich in flavonoids (e.g., luteolin, quercetin glycosides), phenolic acids (chicoric, chlorogenic, and caffeic acids), terpenoids (taraxasterol, taraxerol), sesquiterpene lactones (taraxinic acid β-D-glucopyranosyl ester), and phytosterols (β-sitosterol, cycloartenol)

Dandelion Root — Dandelion root is the root material or root extract of Taraxacum officinale, a polychemical botanical preparation containing phenolic acids, flavonoids, sesquiterpene lactones, triterpenes, inulin-type carbohydrates, and other phytochemicals. It is formally classified as a botanical dietary supplement or herbal extract rather than a defined single-molecule oncology drug. Standard abbreviations include DRE for dandelion root extract and T. officinale for the plant species. Current oncology relevance is mainly preclinical, with repeated in-vitro and xenograft signals but no completed convincing human cancer efficacy trial.

Primary mechanisms (ranked):

  1. Selective programmed cell death induction in cancer cells, especially extrinsic caspase-8 signaling with downstream mitochondrial destabilization and caspase execution.
  2. Mitochondrial stress and pro-death autophagy, including loss of mitochondrial integrity and context-dependent mitochondrial ROS involvement.
  3. Multi-pathway growth suppression through cell-cycle disruption, PI3K-Akt/JAK-STAT/PPAR pathway modulation, and reduced survival signaling.
  4. Anti-invasive and anti-metastatic signaling, including reduced migration/invasion phenotypes and reduced MMP-9/IL-1β expression in some models.
  5. Chemosensitization or adjunctive enhancement in preclinical models, especially with taxol and mitoxantrone in prostate cancer models.
  6. Anti-inflammatory and antioxidant effects in non-cancer contexts; these are biologically relevant but not the central cancer-killing mechanism.

Bioavailability / PK relevance: Dandelion root extract is not a standardized single active agent, so formal human PK is not well established. Oral use is plausible as a botanical preparation, but systemic exposure to the same complex extract composition used in cell culture is unknown. Inulin-rich root material may also act partly through gastrointestinal or microbiome-facing exposure rather than direct plasma-equivalent exposure.

In-vitro vs systemic exposure relevance: Many anticancer experiments use crude extract concentrations in the mg/mL range and exposure windows of 24–96 hours. These concentrations should not be assumed to be systemically achievable after oral use. Colorectal and gastrointestinal tumor models may have relatively better luminal-exposure plausibility than distant solid-tumor systemic exposure, but clinical translation remains unproven.

Clinical evidence status: Preclinical. Evidence includes cell-line studies, some xenograft studies, and case-report-level human observations. A phase I cancer trial effort was reported as Health Canada-approved/recruiting, but there is no clear completed trial demonstrating cancer efficacy. It should not be treated as an established anticancer therapy.

Safety / deployment status: Dandelion is widely marketed as a food/herbal dietary supplement and is generally considered likely safe at food-level intake, but concentrated medicinal doses have less safety evidence. Important constraints include possible allergy in Asteraceae-sensitive individuals, theoretical interactions with antidiabetic, anticoagulant/antiplatelet, lithium, diuretic, and other medications, and uncertainty in pregnancy or breastfeeding. Hormone-sensitive cancer caution is reasonable because some preclinical evidence suggests estrogenic activity and possible stimulation of hormone-sensitive breast cancer models.

Dandelion Root Cancer Mechanism Table

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Extrinsic apoptosis and caspase activation ↑ caspase-8, ↑ Annexin V positivity, ↑ programmed cell death ↔ or lower toxicity in tested PBMCs, fibroblasts, colon mucosa, and mammary epithelial cells G Selective cancer-cell apoptosis Most central recurring anticancer signal across melanoma, leukemia, colorectal, pancreatic, prostate, and breast models; strongest evidence remains in vitro.
2 Mitochondrial destabilization ↓ mitochondrial integrity, ↓ mitochondrial membrane potential, ↑ downstream death signaling ↔ or relatively spared in several comparator normal-cell models G Amplifies intrinsic death execution Mitochondrial injury appears downstream of extrinsic death signaling in some leukemia models and more direct in melanoma/pancreatic models.
3 Pro-death autophagy ↑ autophagy with apoptosis linkage ↔ uncertain G Contributes to programmed cell death Reported in CMML and pancreatic cancer studies; autophagy direction should be interpreted as pro-death in those models, not automatically cytoprotective.
4 Cell cycle arrest ↑ S phase and G2/M accumulation, ↓ proliferation ↔ or less affected in tested normal mammary epithelial cells G Restricts proliferation Best supported in newer breast cancer fractionation/proteomics work; extract-specific and concentration-dependent.
5 PI3K-Akt and JAK-STAT survival signaling ↓ PI3K/Akt-related survival proteins, ↓ JAK/STAT-associated signaling markers (model-dependent) ↔ uncertain G Reduces survival signaling Mechanistic support is strongest in MDA-MB-231 fraction studies; requires caution because crude extracts and fractions differ substantially.
6 Mitochondrial ROS increase secondary ↑ ROS (context-dependent), ↑ oxidative mitochondrial stress ↔ uncertain; antioxidant effects may occur in normal inflammatory injury models R/G Stress-mediated death amplification ROS is not uniformly the primary DRE mechanism; in prostate work, DRE apoptosis was described as caspase-dependent while lemongrass was more ROS-dependent.
7 Migration invasion and metastasis markers ↓ migration, ↓ invasion, ↓ MMP-9, ↓ IL-1β, ↑ KAI1 (model-dependent) ↔ uncertain G Anti-invasive phenotype Observed in breast and pediatric/neuroblastoma models; translational strength is lower than the apoptosis signal.
8 Chemosensitization ↑ taxol-induced apoptosis, ↑ mitoxantrone-induced apoptosis, ↓ xenograft tumor burden with oral extract in prostate models ↔ or reduced toxicity signal in selected comparator normal-cell assays G Adjunctive enhancement Preclinical adjunct signal only; drug interaction risk means this should not be assumed safe with chemotherapy without oncology supervision.
9 Inflammation and NF-κB linked signaling ↓ inflammatory signaling markers (context-dependent) ↓ inflammatory injury markers in non-cancer models G Anti-inflammatory modulation Relevant to tumor microenvironment hypotheses but less directly established as a dominant cancer-cell killing mechanism for root extract.
10 NRF2 antioxidant axis ↔ insufficient direct cancer-specific evidence for root extract ↑ antioxidant defense may occur in injury/metabolic models (context-dependent) G Not a core cancer axis Do not tag NRF2 as a primary DRE anticancer mechanism unless a specific study directly supports it in the target cancer model.
11 Clinical Translation Constraint High in-vitro extract concentrations; variable extract chemistry; no validated human anticancer exposure target Food-level safety generally favorable but concentrated-dose interaction and allergy concerns remain G Limits clinical inference Evidence is promising but mostly preclinical; oral dosing cannot be translated directly from mg/mL cell-culture exposure.

TSF legend: P: 0–30 min; R: 30 min–3 hr; G: >3 hr
COX2, cycloocygenase-2 (Cox-2) mRNA and Cox-2 protein: Click to Expand ⟱
Source: HalifaxProj(inhibit)
Type:
Cyclooxygenase-2 (COX-2) is an enzyme that plays a critical role in the conversion of arachidonic acid to prostaglandins, which are lipid compounds involved in various physiological processes, including inflammation, pain, and fever. COX-2 is an inducible enzyme, meaning its expression is typically low in normal tissues but can be upregulated in response to inflammatory stimuli, growth factors, and certain oncogenic signals.
-Cyclooxygenase-2 (COX-2), the rate-limiting enzyme in prostaglandin biosynthesis, plays a key role in inflammation and circulatory homeostasis.
-COX-2 is an inducible enzyme that is upregulated in response to pro-inflammatory signals, including cytokines (e.g., IL-1β, TNF-α) and growth factors.

COX-2 is often overexpressed in various tumors, including colorectal, breast, lung, and prostate cancers.
The prostaglandins produced by COX-2, particularly prostaglandin E2 (PGE2), have several effects that can facilitate cancer progression:
Cell Proliferation: PGE2 can promote the proliferation of cancer cells by activating signaling pathways such as the PI3K/Akt and MAPK pathways.
Nonselective NSAIDs, such as aspirin and ibuprofen, inhibit both COX-1 and COX-2. Epidemiological studies have suggested that regular use of NSAIDs may reduce the risk of certain cancers, particularly colorectal cancer.
Drugs specifically targeting COX-2, such as celecoxib, have been developed.

COX-2 and xanthine oxidase are ROS-producing pro-oxidant enzymes that contribute to inflammation. Elevated COX‑2 levels, often found in inflammatory conditions or certain types of cancers, can contribute to increased production of ROS.
Scientific Papers found: Click to Expand⟱
6363- DRE,    Therapeutic Potential of Dandelion (Taraxacum officinale) Root Extract in Colon Cancer: A Comprehensive Review
- in-vitro, CRC, NA
Apoptosis↑, *Inflam↓, TLR4↓, NF-kB↓, *GutMicro↑, mtDam↑, *ROS↓, Casp1↑, TNF-α↑, Bcl-2↓, PARP↓, MMP↓, Cyt‑c↓, Casp3↑, TumVol↓, COX2↓, iNOS↓, ROS↑, selectivity↑, TumCMig↓, TumCI↓, ER Stress↑, PERK↑, eIF2α↑, ATF4↑, CHOP↑, TumCCA↑, cycD1/CCND1↓, P21↓, P53↑, BioAv↝, Half-Life↝,
6317- DRE,    The efficacy of dandelion root extract in inducing apoptosis in drug-resistant human melanoma cells
- in-vitro, Melanoma, A375
Apoptosis↑, selectivity↑, Casp8↑, mt-ROS↑, eff↑, *toxicity↓, Diff↑, TumCP↓, chemoPv↑, *ROS↓, *NO↓, *COX2↓, *RNS↓, TumCI↓, MMP2↓, MMP9↓, p‑Src↓, p‑FAK↓,

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:


Redox & Oxidative Stress ⓘ

ROS↑, 1,   mt-ROS↑, 1,  

Mitochondria & Bioenergetics ⓘ

MMP↓, 1,   mtDam↑, 1,  

Cell Death ⓘ

Apoptosis↑, 2,   Bcl-2↓, 1,   Casp1↑, 1,   Casp3↑, 1,   Casp8↑, 1,   Cyt‑c↓, 1,   iNOS↓, 1,  

Protein Folding & ER Stress ⓘ

CHOP↑, 1,   eIF2α↑, 1,   ER Stress↑, 1,   PERK↑, 1,  

DNA Damage & Repair ⓘ

P53↑, 1,   PARP↓, 1,  

Cell Cycle & Senescence ⓘ

cycD1/CCND1↓, 1,   P21↓, 1,   TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

Diff↑, 1,   p‑Src↓, 1,  

Migration ⓘ

p‑FAK↓, 1,   MMP2↓, 1,   MMP9↓, 1,   TumCI↓, 2,   TumCMig↓, 1,   TumCP↓, 1,  

Angiogenesis & Vasculature ⓘ

ATF4↑, 1,  

Immune & Inflammatory Signaling ⓘ

COX2↓, 1,   NF-kB↓, 1,   TLR4↓, 1,   TNF-α↑, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↝, 1,   eff↑, 1,   Half-Life↝, 1,   selectivity↑, 2,  

Functional Outcomes ⓘ

chemoPv↑, 1,   TumVol↓, 1,  
Total Targets: 39

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

RNS↓, 1,   ROS↓, 2,  

Angiogenesis & Vasculature ⓘ

NO↓, 1,  

Immune & Inflammatory Signaling ⓘ

COX2↓, 1,   Inflam↓, 1,  

Clinical Biomarkers ⓘ

GutMicro↑, 1,  

Functional Outcomes ⓘ

toxicity↓, 1,  
Total Targets: 7

Scientific Paper Hit Count for: COX2, cycloocygenase-2 (Cox-2) mRNA and Cox-2 protein
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#:222  Target#:66  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

 

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