Database Query Results : HydroxyTyrosol, ,

HT, HydroxyTyrosol: Click to Expand ⟱

Features:

Hydroxytyrosol (HT; 3,4-dihydroxyphenylethanol) = phenolic compound from extra-virgin olive oil (EVOO) and olives; also formed from oleuropein metabolism. Small, water-soluble catechol with high antioxidant capacity.
Primary mechanisms (conceptual rank):
1) Direct ROS scavenging + lipid peroxidation inhibition (membrane protection).
2) NRF2 activation → endogenous antioxidant enzymes (HO-1, NQO1, GCLC).
3) Anti-inflammatory modulation (↓ NF-κB, ↓ COX-2, ↓ iNOS).
4) Mitochondrial protection / biogenesis support (model-dependent; PGC-1α linkage reported).
5) Anti-proliferative / pro-apoptotic signaling in cancer (dose- and model-dependent).
PK / bioavailability: well absorbed; rapid phase II metabolism (glucuronide/sulfate conjugates); short plasma half-life; free aglycone concentrations modest vs many in-vitro studies.
In-vitro vs systemic exposure: many cell studies use ≥10–100 µM; typical dietary/EVOO intake yields lower transient plasma levels (conjugated forms predominate).
Clinical evidence status: strongest data in cardiometabolic/vascular endpoints; oncology evidence largely preclinical; neuroprotection mechanistically plausible with limited RCT data.

Hydroxytyrosol is mostly only available from olive oil and leaves, but is available as a common supplement.
Hydroxytyrosol & oleuropein show the most consistent direct anti-CSC activity in multiple models (breast, colon, prostate).

Hydroxytyrosol is potent against CSC phenotypes. Mechanisms: -Blocks EMT, reducing transition into CSC-like states -Inhibits Notch signaling -Reduces CD44+ / CD24– CSC markers -Inhibits hypoxia-driven stemness (HIF-1α suppression) Hydroxytyrosol is especially active in: -Breast CSCs -Melanoma CSC-like cells -Gastric CSC models

Hydroxytyrosol (HT) — Cancer-Relevant Pathways

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation

1 ROS tone / lipid peroxidation ↓ (low–mod dose); ↑ (high concentration only) ↓ P→R Antioxidant; membrane protection Catechol scavenger; at higher concentrations may induce pro-oxidant stress in tumors (model-dependent).

2 NRF2 axis ↑ (context-dependent) ↑ R→G Endogenous antioxidant induction ↑ HO-1/NQO1; protective in normal tissues; could support tumor stress resistance (context-dependent).

3 NF-κB / COX-2 inflammation ↓ ↓ R→G Anti-inflammatory Reduces pro-tumor inflammatory signaling; consistent with Mediterranean diet data.

4 Mitochondrial function ↔ / ↓ proliferation (model-dependent) ↑ (protective) R→G Bioenergetic stabilization Reported support of mitochondrial integrity in normal cells; may impair cancer cell proliferation via metabolic stress.

5 Apoptosis (caspase activation) ↑ (high concentration only) ↔ / ↓ R→G Pro-apoptotic in select tumors Observed at supra-physiologic exposures in vitro.

6 Ferroptosis axis ↓ (anti-lipid-ROS bias) ↓ P→R Inhibits lipid oxidation Strong antioxidant property may counter ferroptotic strategies (context-dependent).

7 Clinical Translation Constraint — — — Exposure limitations Rapid metabolism; plasma free HT lower than many in-vitro doses; best considered dietary adjunct.

TSF Legend: P: 0–30 min | R: 30 min–3 hr | G: >3 hr

Hydroxytyrosol (HT) — Cancer Stemness / EMT Axis (Addendum)

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation

1 EMT (Epithelial–Mesenchymal Transition) ↓ (model-/dose-dependent) ↔ R→G Reduces EMT-associated transcription (e.g., Snail, Twist) Reported attenuation of mesenchymal phenotype; relevance strongest in breast and melanoma models; mostly in-vitro.

2 CSC markers (CD44⁺/CD24^–) ↓ (model-dependent) ↔ G Reduces stemness-associated phenotype Observed reduction in CSC-like populations in breast cancer models; requires supra-physiologic exposure in many studies.

3 Notch signaling ↓ (model-dependent) ↔ R→G Stemness pathway inhibition Downregulation of Notch pathway components reported; central to CSC maintenance; not universally replicated across tumor types.

4 HIF-1α / hypoxia-driven stemness ↓ (preclinical) ↔ R→G Suppresses hypoxia adaptation Reduced HIF-1α signaling may attenuate hypoxia-induced CSC traits; data strongest in gastric and breast models.

5 Tumor-type specificity Breast, Melanoma, Gastric (preclinical) — — CSC-like cell sensitivity Evidence largely limited to cell-line and xenograft systems; translational dosing gap remains significant.

TSF Legend: P: 0–30 min | R: 30 min–3 hr | G: >3 hr

Hydroxytyrosol (HT) — Alzheimer’s Disease–Relevant Axes

Rank Pathway / Axis Cells (neurons/glia) TSF Primary Effect Notes / Interpretation

1 Lipid peroxidation / neuronal membrane protection ↓ P Neuroprotective antioxidant Protects against oxidative membrane injury; aligns with AD oxidative stress hypothesis.

2 NRF2 activation ↑ R→G Endogenous antioxidant upregulation Supports neuronal resilience under oxidative stress.

3 Neuroinflammation (NF-κB) ↓ R→G Microglial modulation Reduces pro-inflammatory cytokines in models.

4 Mitochondrial integrity ↑ R→G Bioenergetic stabilization Improves mitochondrial function in neuronal models; may reduce apoptotic susceptibility.

5 Aβ toxicity modulation ↓ (preclinical) G Reduces amyloid-induced oxidative injury Animal/cell evidence; limited direct human AD trials.

6 Clinical Translation Constraint — — Dietary-level evidence Human data strongest for Mediterranean diet patterns; isolated HT supplementation lacks large AD RCTs.

TSF Legend: P: 0–30 min | R: 30 min–3 hr | G: >3 hr

Scientific Papers found: Click to Expand⟱

601-

HT,

Dihydroxyphenylethanol induces apoptosis by activating serine/threonine protein phosphatase PP2A and promotes the endoplasmic reticulum stress response in human colon carcinoma cells

in-vivo,

NA,

HT-29

TumCG↓, Apoptosis↑, ER Stress↑, UPR↑, CHOP↑, JNK↑, TNF-α↓, PPP2R1A↑,

4632-

HT,

Hydroxytyrosol inhibits cancer stem cells and the metastatic capacity of triple-negative breast cancer cell lines by the simultaneous targeting of epithelial-to-mesenchymal transition, Wnt/β-catenin and TGFβ signaling pathways

in-vitro,

BC,

MDA-MB-231

in-vitro,

BC,

BT549

in-vitro,

BC,

SUM159

CSCs↓, TumCMig↓, TumCI↓, β-catenin/ZEB1↓, Wnt↓, p‑LRP6↓, LRP6↓, cycD1/CCND1↓, EMT↓, Slug↓, Zeb1↓, Snail↓, Vim↓, SMAD2↓, SMAD3↓, TGF-β↓,

4633-

HT,

Unlocking the effective alliance of β-lapachone and hydroxytyrosol against triple-negative breast cancer cells

in-vitro,

BC,

AntiCan↑, CSCs↓, antiOx↑, NQO1↑, TumCCA↑, ER Stress↑, Apoptosis↑, UPR↑,

4634-

HT,

Hydroxytyrosol in cancer research: recent and historical insights on discoveries and mechanisms of action

Review,

Var,

*antiOx↑, *Inflam↓, AntiCan↑, ChemoSen↑, chemoP↑,

4635-

HT,

Hydroxytyrosol, a Component of Olive Oil for Breast Cancer Prevention in Women at High Risk of Cancer

Trial,

BC,

Twenty-five milligrams per day oral dose of HT was given for 12 months

*Wnt↓, *NOTCH↓, *ROS↓, TumCP↓, CSCs↓,

4636-

HT,

in-vitro,

BC,

SUM159

in-vitro,

BC,

MDA-MB-231

in-vitro,

BC,

HS587T

in-vitro,

BC,

BT549

Wnt↓, β-catenin/ZEB1↓, LRP6↓, cycD1/CCND1↓, EMT↓, Slug↓, Zeb1↓, Snail↓, Vim↓, TGF-β↓, CSCs↓, TumCMig↓, chemoP↑,

4637-

HT,

Comparative Cytotoxic Activity of Hydroxytyrosol and Its Semisynthetic Lipophilic Derivatives in Prostate Cancer Cells

in-vitro,

Nor,

RWPE-1

52.20 ± 4.19

in-vitro,

Pca,

LNCaP

41.17 ± 2.79

in-vitro,

Pca,

22Rv1

9.32 ± 0.50

in-vitro,

Pca,

PC3

28.88 ± 2.25

selectivity↑, TumCMig↓, p‑Akt↓, ROS↑, CSCs↓, CD44↓, TumCP↓,

4638-

HT,

Hydroxytyrosol induces apoptosis in human colon cancer cells through ROS generation

in-vitro,

CRC,

DLD1

NA,

selectivity↑, ROS↑, Akt↑, FOXO3↓, Apoptosis↑,

4639-

HT,

Hydroxytyrosol Induces Apoptosis, Cell Cycle Arrest and Suppresses Multiple Oncogenic Signaling Pathways in Prostate Cancer Cells

in-vitro,

Pca,

LNCaP

in-vitro,

Pca,

C4-2B

TumCP↓, selectivity↑, TumCCA↑, cycD1/CCND1↓, cycE/CCNE↓, CDK2↓, CDK4↓, P21↑, p27↑, Apoptosis↑, Casp↑, cl‑PARP↑, Bax:Bcl2↑, p‑Akt↓, p‑STAT3↓, NF-kB↓, AR↓, ROS↑, *BioAv↓, *toxicity∅,

4640-

HT,

The anti-cancer potential of hydroxytyrosol

Review,

Var,

selectivity↑, MMP↓, Cyt‑c↑, Casp9↑, Casp3↑, Bcl-2↓, BAX↑, MPT↑, Fas↑, PI3K↓, Akt↓, mTOR↓, Mcl-1↓, survivin↓, STAT3↓, EMT↓, TumCI↓, angioG↓, E-cadherin↑, N-cadherin↓, Snail↓, Twist↓, MMPs↓, MMP2↓, MMP9↓, VEGF↓, VEGFR2↓, Hif1a↓, CSCs↓, CD44↓, Wnt↓, β-catenin/ZEB1↓,

4641-

HT,

Hydroxytyrosol induced ferroptosis through Nrf2 signaling pathway in colorectal cancer cells

in-vitro,

CRC,

HCT116

in-vitro,

CRC,

SW48

Ferroptosis↑, Iron↑, lipid-P↑, ROS↑, GSH↓, MMP↓, GPx4↓, TLR1↑, eff↓, NRF2↓, ROS↑,

4642-

HT,

Hydroxytyrosol, a natural molecule from olive oil, suppresses the growth of human hepatocellular carcinoma cells via inactivating AKT and nuclear factor-kappa B pathways

in-vitro,

HCC,

HepG2

NA,

Hep3B

NA,

SK-HEP-1

TumCP↓, TumCCA↑, Apoptosis↑, Akt↓, NF-kB↓, TumCG↓, angioG↓,

4644-

HT,

The Hydroxytyrosol Induces the Death for Apoptosis of Human Melanoma Cells

in-vitro,

Melanoma,

tumCV↓, Apoptosis↑, P53↑, γH2AX↑, Akt↓, ROS↑, DNAdam↑,

4645-

HT,

Hydroxytyrosol: Bioavailability, toxicity, and clinical applications

Review,

NA,

*antiOx↑, *Inflam↓, AntiTum↑, *BioAv↓, *Half-Life↓, *BioAv↝, *BioAv↓,

4643-

OLE,

HT,

Use of Oleuropein and Hydroxytyrosol for Cancer Prevention and Treatment: Considerations about How Bioavailability and Metabolism Impact Their Adoption in Clinical Routine

Review,

Var,

TumCCA↑, Apoptosis↑, ER Stress↑, UPR↑, CHOP↑, ROS↑, Bcl-2↓, NOX4↑, Hif1a↓, MMP2↓, MMP↓, VEGF↓, Akt↓, NF-kB↓, p65↓, SIRT3↓, mTOR↓, Catalase↓, SOD2↓, FASN↓, STAT3↓, HDAC2↓, HDAC3↓, BAD↑, BAX↑, Bak↑, Casp3↑, Casp9↑, PARP↑, P53↑, P21↑, p27↑, Half-Life↝, BioAv↓, BioAv↓, selectivity↑, RadioS↑, *ROS↓, *GSH↑, *MDA↓, *SOD↑, *Catalase↑, *NRF2↑, *chemoP↑, *Inflam↓, PPARγ↑,

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 15

Pathway results for Effect on Cancer / Diseased Cells:

Functional Outcomes ⓘ

AntiCan↑, 2, AntiTum↑, 1, chemoP↑, 2,
Total Targets: 102

Pathway results for Effect on Normal Cells:

Redox & Oxidative Stress ⓘ

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

Proliferation, Differentiation & Cell State ⓘ

NOTCH↓, 1, Wnt↓, 1,

Immune & Inflammatory Signaling ⓘ

Inflam↓, 3,

Drug Metabolism & Resistance ⓘ

BioAv↓, 3, BioAv↝, 1, Half-Life↓, 1,

Functional Outcomes ⓘ

chemoP↑, 1, toxicity∅, 1,
Total Targets: 15

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#:376  Target#:%  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

Database Query Results : HydroxyTyrosol, ,

Hydroxytyrosol (HT) — Cancer-Relevant Pathways

Hydroxytyrosol (HT) — Cancer Stemness / EMT Axis (Addendum)

Hydroxytyrosol (HT) — Alzheimer’s Disease–Relevant Axes

Pathway results for Effect on Cancer / Diseased Cells:

Redox & Oxidative Stress ⓘ

Mitochondria & Bioenergetics ⓘ

Core Metabolism/Glycolysis ⓘ

Cell Death ⓘ

Transcription & Epigenetics ⓘ

Protein Folding & ER Stress ⓘ

DNA Damage & Repair ⓘ

Cell Cycle & Senescence ⓘ

Proliferation, Differentiation & Cell State ⓘ

Migration ⓘ

Angiogenesis & Vasculature ⓘ

Immune & Inflammatory Signaling ⓘ

Hormonal & Nuclear Receptors ⓘ

Drug Metabolism & Resistance ⓘ

Clinical Biomarkers ⓘ

Functional Outcomes ⓘ

Pathway results for Effect on Normal Cells:

Redox & Oxidative Stress ⓘ

Proliferation, Differentiation & Cell State ⓘ

Immune & Inflammatory Signaling ⓘ

Drug Metabolism & Resistance ⓘ

Functional Outcomes ⓘ

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