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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: type of cell death |
| Situation in which a cell actively pursues a course toward death upon receiving certain stimuli. Cancer is one of the scenarios where too little apoptosis occurs, resulting in malignant cells that will not die. |
| 25- | EGCG, | QC, | Quercetin Increased the Antiproliferative Activity of Green Tea Polyphenol (-)-Epigallocatechin Gallate in Prostate Cancer Cells |
| - | in-vitro, | Pca, | PC3 | - | in-vitro, | Pca, | LNCaP |
| 910- | QC, | The Anti-Cancer Effect of Quercetin: Molecular Implications in Cancer Metabolism |
| 912- | QC, | 2DG, | Selected polyphenols potentiate the apoptotic efficacy of glycolytic inhibitors in human acute myeloid leukemia cell lines. Regulation by protein kinase activities |
| 894- | QC, | The antioxidant, rather than prooxidant, activities of quercetin on normal cells: quercetin protects mouse thymocytes from glucose oxidase-mediated apoptosis |
| - | in-vitro, | Nor, | NA |
| 1201- | QC, | Quercetin: a silent retarder of fatty acid oxidation in breast cancer metastasis through steering of mitochondrial CPT1 |
| - | in-vivo, | BC, | NA |
| 923- | QC, | Quercetin as an innovative therapeutic tool for cancer chemoprevention: Molecular mechanisms and implications in human health |
| - | Review, | Var, | 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 |
| 916- | QC, | Quercetin and cancer: new insights into its therapeutic effects on ovarian cancer cells |
| - | Review, | Ovarian, | NA |
| 914- | QC, | Quercetin and Cancer Chemoprevention |
| - | Review, | NA, | NA |
| - | in-vitro, | Pca, | pCSCs |
| 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, | BC, | MDA-MB-231 |
| 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 |
| 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 |
| 40- | QC, | Quercetin arrests G2/M phase and induces caspase-dependent cell death in U937 cells |
| - | in-vitro, | lymphoma, | U937 |
| 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 |
| 50- | QC, | Anticancer effect and mechanism of polymer micelle-encapsulated quercetin on ovarian cancer |
| - | vitro+vivo, | Ovarian, | A2780S |
| 86- | QC, | PacT, | Quercetin regulates insulin like growth factor signaling and induces intrinsic and extrinsic pathway mediated apoptosis in androgen independent prostate cancer cells (PC-3) |
| - | vitro+vivo, | Pca, | PC3 |
| 88- | QC, | PacT, | Quercetin Enhanced Paclitaxel Therapeutic Effects Towards PC-3 Prostate Cancer Through ER Stress Induction and ROS Production |
| - | vitro+vivo, | Pca, | PC3 |
| 84- | QC, | Quercetin-induced growth inhibition and cell death in prostatic carcinoma cells (PC-3) are associated with increase in p21 and hypophosphorylated retinoblastoma proteins expression |
| - | in-vitro, | Pca, | PC3 |
| 78- | QC, | Effects of quercetin on insulin-like growth factors (IGFs) and their binding protein-3 (IGFBP-3) secretion and induction of apoptosis in human prostate cancer cells |
| - | in-vitro, | Pca, | PC3 |
| 4787- | QC, | Quercetin: A Phytochemical with Pro-Apoptotic Effects in Colon Cancer Cells |
| - | Review, | CRC, | NA |
| 5031- | QC, | Different roles of Nrf2 and NFKB in the antioxidant imbalance produced by esculetin or quercetin on NB4 leukemia cells |
| - | in-vitro, | AML, | APL NB4 |
| 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 |
| 3347- | QC, | Recent Advances in Potential Health Benefits of Quercetin |
| - | Review, | Var, | NA | - | Review, | AD, | NA |
| 3346- | QC, | Regulation of the Intracellular ROS Level Is Critical for the Antiproliferative Effect of Quercetin in the Hepatocellular Carcinoma Cell Line HepG2 |
| - | in-vitro, | Liver, | HepG2 | - | in-vitro, | Liver, | HUH7 |
| 3343- | QC, | Quercetin, a Flavonoid with Great Pharmacological Capacity |
| - | Review, | Var, | NA | - | Review, | AD, | NA | - | Review, | Arthritis, | NA |
| 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 |
| 3373- | QC, | The Effect of Quercetin in the Yishen Tongluo Jiedu Recipe on the Development of Prostate Cancer through the Akt1-related CXCL12/ CXCR4 Pathway |
| - | in-vitro, | Pca, | DU145 |
| 3371- | QC, | Quercetin induces MGMT+ glioblastoma cells apoptosis via dual inhibition of Wnt3a/β-Catenin and Akt/NF-κB signaling pathways |
| - | in-vitro, | GBM, | T98G |
| 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 |
| 1309- | TQ, | QC, | Thymoquinone and quercetin induce enhanced apoptosis in non-small cell lung cancer in combination through the Bax/Bcl2 cascade |
| - | in-vitro, | Lung, | 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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