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| Plant pigment (flavonoid) found in red wine, onions, green tea, apples and berries. Quercetin is thought to contribute to anticancer effects through several mechanisms: -Antioxidant Activity: -Induction of Apoptosis:modify Bax:Bcl-2 ratio -Anti-inflammatory Effects: -Cell Cycle Arrest: -Inhibition of Angiogenesis and Metastasis: (VEGF) Cellular Pathways: -PI3K/Akt/mTOR Pathway: central to cell proliferation, survival, and metabolism. -MAPK/ERK Pathway: influencing cell proliferation, differentiation, and apoptosis. -NF-κB Pathway: downregulate NF-κB -JAK/STAT Pathway: interfere with the activation of STAT3 -Apoptotic Pathways: intrinsic (mitochondrial) and extrinsic (death receptor-mediated) pathways Quercetin has been used at doses around 500–1000 mg per day Quercetin’s bioavailability from foods or standard supplements can be low. -Note half-life 11 to 28 hours. BioAv low 1-10%, poor water-solubility, consuming with fat may improve bioavialability. also piperine or VitC. Pathways: - induce ROS production in cancer cells (higher dose). Typicallys Lowers ROS in normal cells(unless it is high dose?)or depends on Redox status?. "quercetin paradox" - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓, Prx, - Confusing info about Lowering AntiOxidant defense in Cancer Cells: NRF2↓(some contrary), TrxR↓**, SOD↓(contrary), GSH↓ Catalase↓(contrary), HO1↓(some contrary), GPx↓(some contrary) - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, TIMP2, IGF-1↓, uPA↓, VEGF↓, ROCK1↓, FAK↓, NF-κB↓, CXCR4↓, SDF1↓, TGF-β↓, α-SMA↓, ERK↓ - reactivate genes thereby inhibiting cancer cell growth : HDAC↓, DNMTs↓, EZH2↓, P53↑, HSP↓, Sp proteins↓, TET↑ - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, FAK↓, ERK↓, EMT↓, TOP1↓, TET1, - inhibits glycolysis and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, PFKs↓, PDKs↓, ECAR↓, OXPHOS↓, GRP78↑, GlucoseCon↓ - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, FGF↓, PDGF↓, EGFR↓">EGFR↓, - some indication of inhibiting Cancer Stem Cells : CSC↓, CK2↓, Hh↓, CD24↓, β-catenin↓, Notch2↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK, α↓, ERK↓, JNK, - SREBP (related to cholesterol). - Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells
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| Source: HalifaxProj(inhibit) CGL-Driver |
| Type: Oncogene |
| EGFR (Epidermal growth factor receptor), which belongs to the tyrosine kinase receptor family (RTKs) Epidermal Growth Factor Receptor (EGFR) is a cell surface protein that plays a crucial role in the regulation of cell growth, survival, proliferation, and differentiation. It is part of the ErbB family of receptors and is activated by binding to its ligands, such as epidermal growth factor (EGF) and transforming growth factor-alpha (TGF-α). -plays a crucial role in regulating cell growth and division. Many cancers exhibit overexpression of EGFR, which can lead to enhanced signaling and contribute to tumor growth and survival. This overexpression is often associated with aggressive tumor behavior and poor prognosis. |
| 26- | EGCG, | QC, | docx, | Green tea and quercetin sensitize PC-3 xenograft prostate tumors to docetaxel chemotherapy |
| - | vitro+vivo, | Pca, | PC3 |
| 923- | QC, | Quercetin as an innovative therapeutic tool for cancer chemoprevention: Molecular mechanisms and implications in human health |
| - | Review, | Var, | NA |
| 62- | QC, | GoldNP, | Gold nanoparticles-conjugated quercetin induces apoptosis via inhibition of EGFR/PI3K/Akt-mediated pathway in breast cancer cell lines (MCF-7 and MDA-MB-231) |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
| 66- | QC, | Emerging impact of quercetin in the treatment of prostate cancer |
| - | Review, | Pca, | NA |
| 95- | QC, | EGFR_signaling_pathway">Quercetin, a natural dietary flavonoid, acts as a chemopreventive agent |
| - | in-vitro, | Pca, | PC3 |
| 85- | QC, | Quercetin inhibits invasion, migration and signalling molecules involved in cell survival and proliferation of prostate cancer cell line (PC-3) |
| - | in-vitro, | Pca, | PC3 |
| 80- | QC, | Quercetin reverses EGF-induced epithelial to mesenchymal transition and invasiveness in prostate cancer (PC-3) cell line via EGFR/PI3K/Akt pathway |
| - | in-vitro, | Pca, | PC3 |
| 3603- | QC, | Mechanism of quercetin therapeutic targets for Alzheimer disease and type 2 diabetes mellitus |
| - | Review, | AD, | NA | - | Review, | Diabetic, | NA |
| 3369- | QC, | Pharmacological basis and new insights of quercetin action in respect to its anti-cancer effects |
| - | Review, | Pca, | NA |
| 3368- | QC, | The potential anti-cancer effects of quercetin on blood, prostate and lung cancers: An update |
| - | Review, | Var, | NA |
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
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