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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↓, - 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: |
| Type: |
| Cell Viability |
| 910- | QC, | The Anti-Cancer Effect of Quercetin: Molecular Implications in Cancer Metabolism |
| 913- | QC, | Effects of low dose quercetin: Cancer cell-specific inhibition of cell cycle progression |
| - | in-vitro, | BC, | SkBr3 | - | in-vitro, | BC, | MDA-MB-435 |
| - | in-vitro, | PC, | PANC1 | - | in-vitro, | PC, | PATU-8988 |
| 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 |
| 45- | QC, | Quercetin Inhibit Human SW480 Colon Cancer Growth in Association with Inhibition of Cyclin D1 and Survivin Expression through Wnt/β-Catenin Signaling Pathway |
| - | in-vitro, | Colon, | CX-1 | - | in-vitro, | Colon, | SW480 | - | in-vitro, | Colon, | HT-29 | - | in-vitro, | Colon, | HCT116 |
| 90- | QC, | HP, | Combination of quercetin and hyperoside inhibits prostate cancer cell growth and metastasis via regulation of microRNA‑21 |
| - | in-vitro, | Pca, | PC3 |
| - | in-vitro, | Pca, | CD44+ | - | in-vitro, | NA, | CD133+ | - | in-vitro, | NA, | PC3 | - | in-vitro, | NA, | LNCaP |
| 3379- | QC, | The Effect of Quercetin Nanosuspension on Prostate Cancer Cell Line LNCaP via Hedgehog Signaling Pathway |
| - | in-vitro, | Pca, | LNCaP |
| 3353- | QC, | Quercetin triggers cell apoptosis-associated ROS-mediated cell death and induces S and G2/M-phase cell cycle arrest in KON oral cancer cells |
| - | in-vitro, | Oral, | KON | - | in-vitro, | Nor, | MRC-5 |
| 3376- | QC, | Inhibiting CDK6 Activity by Quercetin Is an Attractive Strategy for Cancer Therapy |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | Lung, | A549 |
| 3343- | QC, | Quercetin, a Flavonoid with Great Pharmacological Capacity |
| - | Review, | Var, | NA | - | Review, | AD, | NA | - | Review, | Arthritis, | NA |
| 3339- | QC, | Quercetin suppresses ROS production and migration by specifically targeting Rac1 activation in gliomas |
| - | in-vitro, | GBM, | C6 | - | in-vitro, | GBM, | IMR32 |
| 3374- | QC, | Therapeutic effects of quercetin in oral cancer therapy: a systematic review of preclinical evidence focused on oxidative damage, apoptosis and anti-metastasis |
| - | Review, | Oral, | NA | - | Review, | AD, | NA |
| 3362- | QC, | The effect of quercetin on cervical cancer cells as determined by inducing tumor endoplasmic reticulum stress and apoptosis and its mechanism of action |
| - | in-vitro, | Cerv, | HeLa |
| 104- | RES, | QC, | Resveratrol and Quercetin in Combination Have Anticancer Activity in Colon Cancer Cells and Repress Oncogenic microRNA-27a |
| - | in-vitro, | Colon, | HT-29 |
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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