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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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| 2341- | QC, | Quercetin suppresses the mobility of breast cancer by suppressing glycolysis through Akt-mTOR pathway mediated autophagy induction |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 | - | in-vivo, | NA, | NA |
| 2340- | QC, | Oral Squamous Cell Carcinoma Cells with Acquired Resistance to Erlotinib Are Sensitive to Anti-Cancer Effect of Quercetin via Pyruvate Kinase M2 (PKM2) |
| - | in-vitro, | OS, | NA |
| 2339- | QC, | Quercetin protects against LPS-induced lung injury in mice via SIRT1-mediated suppression of PKM2 nuclear accumulation |
| - | in-vivo, | Nor, | NA |
| 2338- | QC, | Quercetin: A Flavonoid with Potential for Treating Acute Lung Injury |
| - | Review, | Nor, | NA |
| 2303- | QC, | doxoR, | Quercetin greatly improved therapeutic index of doxorubicin against 4T1 breast cancer by its opposing effects on HIF-1α in tumor and normal cells |
| - | in-vitro, | BC, | 4T1 | - | in-vivo, | NA, | NA |
| 2300- | QC, | Flavonoids Targeting HIF-1: Implications on Cancer Metabolism |
| - | Review, | Var, | NA |
| 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 |
| 1201- | QC, | Quercetin: a silent retarder of fatty acid oxidation in breast cancer metastasis through steering of mitochondrial CPT1 |
| - | in-vivo, | BC, | NA |
| 980- | QC, | Dietary Quercetin Exacerbates the Development of Estrogen-Induced Breast Tumors in Female ACI Rats |
| - | in-vivo, | BC, | NA |
| 926- | QC, | PacT, | doxoR, | Tam, | Bioenhancers from mother nature and their applicability in modern medicine |
| - | Review, | Nor, | NA |
| 923- | QC, | Quercetin as an innovative therapeutic tool for cancer chemoprevention: Molecular mechanisms and implications in human health |
| - | Review, | Var, | NA |
| 922- | QC, | Quercetin and ovarian cancer: An evaluation based on a systematic review |
| - | Review, | NA, | NA |
| 921- | QC, | Essential requirement of reduced glutathione (GSH) for the anti-oxidant effect of the flavonoid quercetin |
| - | in-vitro, | lymphoma, | U937 |
| 920- | QC, | Interfering with ROS Metabolism in Cancer Cells: The Potential Role of Quercetin |
| - | Review, | NA, | NA |
| 919- | QC, | Quercetin Regulates Sestrin 2-AMPK-mTOR Signaling Pathway and Induces Apoptosis via Increased Intracellular ROS in HCT116 Colon Cancer Cells |
| - | in-vitro, | CRC, | HCT116 |
| 918- | QC, | CUR, | VitC, | Anti- and pro-oxidant effects of oxidized quercetin, curcumin or curcumin-related compounds with thiols or ascorbate as measured by the induction period method |
| - | Analysis, | NA, | NA |
| 917- | QC, | BML, | Pap, | Quercetin: A Versatile Flavonoid |
| - | Review, | Nor, | NA |
| 916- | QC, | Quercetin and cancer: new insights into its therapeutic effects on ovarian cancer cells |
| - | Review, | Ovarian, | NA |
| 915- | QC, | Hormesis and synergy: pathways and mechanisms of quercetin in cancer prevention and management |
| - | Review, | NA, | NA |
| 914- | QC, | Quercetin and Cancer Chemoprevention |
| - | Review, | NA, | NA |
| - | in-vitro, | Pca, | pCSCs |
| 52- | QC, | Effect of Quercetin on Cell Cycle and Cyclin Expression in Ovarian Carcinoma and Osteosarcoma Cell Lines |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | Ovarian, | SKOV3 | - | in-vitro, | OS, | U2OS |
| 53- | QC, | Quercetin regulates β-catenin signaling and reduces the migration of triple negative breast cancer |
| - | in-vitro, | BC, | MDA-MB-231 | - | NA, | NA, | MDA-MB-468 |
| 54- | QC, | Quercetin‑3‑methyl ether suppresses human breast cancer stem cell formation by inhibiting the Notch1 and PI3K/Akt signaling pathways |
| - | in-vitro, | BC, | MCF-7 |
| 55- | QC, | Quercetin inhibits the growth of human gastric cancer stem cells by inducing mitochondrial-dependent apoptosis through the inhibition of PI3K/Akt signaling |
| - | in-vitro, | GC, | GCSCs |
| - | in-vitro, | PC, | PANC1 | - | in-vitro, | PC, | PATU-8988 |
| 57- | QC, | Quercetin inhibits angiogenesis through thrombospondin-1 upregulation to antagonize human prostate cancer PC-3 cell growth in vitro and in vivo |
| - | vitro+vivo, | PC, | PC3 |
| 58- | QC, | doxoR, | Quercetin induces cell cycle arrest and apoptosis in CD133+ cancer stem cells of human colorectal HT29 cancer cell line and enhances anticancer effects of doxorubicin |
| - | in-vitro, | CRC, | HT-29 | - | in-vitro, | NA, | CD133+ |
| - | in-vitro, | BC, | MDA-MB-231 |
| 51- | QC, | Effect of Quercetin on Cell Cycle and Cyclin Expression in Ovarian Carcinoma and Osteosarcoma Cell Lines |
| - | in-vitro, | Ovarian, | SKOV3 |
| 61- | QC, | Midkine downregulation increases the efficacy of quercetin on prostate cancer stem cell survival and migration through PI3K/AKT and MAPK/ERK pathway |
| - | in-vitro, | Pca, | PC3 | - | in-vitro, | Pca, | LNCaP | - | in-vitro, | Pca, | ARPE-19 |
| 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 |
| 63- | QC, | Quercetin facilitates cell death and chemosensitivity through RAGE/PI3K/AKT/mTOR axis in human pancreatic cancer cells |
| - | in-vitro, | Pca, | NA |
| 64- | QC, | Quercetin enhances TRAIL-mediated apoptosis in colon cancer cells by inducing the accumulation of death receptors in lipid rafts |
| - | in-vitro, | Colon, | HT-29 | - | in-vitro, | Colon, | SW-620 | - | in-vitro, | Colon, | Caco-2 |
| 65- | QC, | Hsp27 participates in the maintenance of breast cancer stem cells through regulation of epithelial-mesenchymal transition and nuclear factor-κB |
| - | in-vitro, | BC, | NA |
| 66- | QC, | Emerging impact of quercetin in the treatment of prostate cancer |
| - | Review, | Pca, | NA |
| 67- | QC, | RES, | Overexpression of c-Jun induced by quercetin and resverol inhibits the expression and function of the androgen receptor in human prostate cancer cells |
| - | in-vitro, | Pca, | LNCaP | - | in-vitro, | Pca, | LAPC-4 |
| 98- | QC, | Quercetin postconditioning attenuates myocardial ischemia/reperfusion injury in rats through the PI3K/Akt pathway |
| - | in-vivo, | Stroke, | NA |
| 43- | QC, | Investigation of the anti-cancer effect of quercetin on HepG2 cells in vivo |
| - | in-vivo, | Liver, | HepG3 |
| 35- | QC, | Quercetin may act as a cytotoxic prooxidant after its metabolic activation to semiquinone and quinoidal product |
| - | Study, | NA, | NA |
| 36- | QC, | Quercetin induces G2 phase arrest and apoptosis with the activation of p53 in an E6 expression-independent manner in HPV-positive human cervical cancer-derived cells |
| - | in-vitro, | Cerv, | HeLa | - | in-vitro, | Cerv, | SiHa |
| 37- | QC, | Low Concentrations of Flavonoids Are Protective in Rat H4IIE Cells Whereas High Concentrations Cause DNA Damage and Apoptosis |
| - | in-vivo, | Hepat, | H4IIE |
| 38- | QC, | Quercetin inhibits prostate cancer by attenuating cell survival and inhibiting anti-apoptotic pathways |
| - | in-vitro, | Pca, | DU145 | - | in-vitro, | Pca, | PC3 |
| 39- | QC, | A Comprehensive Analysis and Anti-Cancer Activities of Quercetin in ROS-Mediated Cancer and Cancer Stem Cells |
| - | Analysis, | NA, | NA |
| 40- | QC, | Quercetin arrests G2/M phase and induces caspase-dependent cell death in U937 cells |
| - | in-vitro, | lymphoma, | U937 |
| 41- | QC, | Quercetin induces mitochondrial-derived apoptosis via reactive oxygen species-mediated ERK activation in HL-60 leukemia cells and xenograft |
| - | vitro+vivo, | AML, | HL-60 |
| 42- | QC, | Quercetin induces apoptosis by activating caspase-3 and regulating Bcl-2 and cyclooxygenase-2 pathways in human HL-60 cells |
| - | in-vitro, | AML, | HL-60 |
| 68- | QC, | BaP, | Differential protein expression of peroxiredoxin I and II by benzo(a)pyrene and quercetin treatment in 22Rv1 and PrEC prostate cell lines |
| - | in-vitro, | Pca, | 22Rv1 | - | in-vitro, | Pca, | PrEC |
| 44- | QC, | Preclinical Colorectal Cancer Chemopreventive Efficacy and p53-Modulating Activity of 3′,4′,5′-Trimethoxyflavonol, a Quercetin Analog |
| - | in-vivo, | CRC, | HCT116 |
| 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 |
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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