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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. EMIQ bioavialability is about 3X that of Quercetin (Example Natural Factors brand) Isoquercitrin is high bioaviability and efficiacy but at this time does not seem available as supplement. -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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| 5026- | QC, | Quercetin induces ferroptosis in gastric cancer cells by targeting SLC1A5 and regulating the p-Camk2/p-DRP1 and NRF2/GPX4 Axes |
| - | in-vitro, | GC, | NA |
| 3609- | QC, | Factors modulating bioavailability of quercetin-related flavonoids and the consequences of their vascular function |
| - | Review, | Var, | NA |
| 3608- | QC, | Chronic diseases, inflammation, and spices: how are they linked? |
| - | Review, | Var, | NA |
| 3607- | QC, | Mechanisms of Neuroprotection by Quercetin: Counteracting Oxidative Stress and More |
| - | Review, | AD, | NA | - | Review, | Park, | NA |
| 3606- | QC, | The Effect of Quercetin on Inflammatory Factors and Clinical Symptoms in Women with Rheumatoid Arthritis: A Double-Blind, Randomized Controlled Trial |
| - | Trial, | Arthritis, | NA |
| 3605- | QC, | Protective effect of quercetin in primary neurons against Aβ(1–42): relevance to Alzheimer's disease |
| - | Review, | AD, | NA |
| 3604- | QC, | Quercetin enrich diet during the early-middle not middle-late stage of alzheimer’s disease ameliorates cognitive dysfunction |
| - | in-vivo, | AD, | NA |
| 3603- | QC, | Mechanism of quercetin therapeutic targets for Alzheimer disease and type 2 diabetes mellitus |
| - | Review, | AD, | NA | - | Review, | Diabetic, | NA |
| 3339- | QC, | Quercetin suppresses ROS production and migration by specifically targeting Rac1 activation in gliomas |
| - | in-vitro, | GBM, | C6 | - | in-vitro, | GBM, | IMR32 |
| 4297- | QC, | Quercetin attenuates tau hyperphosphorylation and improves cognitive disorder via suppression of ER stress in a manner dependent on AMPK pathway |
| - | in-vitro, | AD, | SH-SY5Y |
| 4665- | QC, | Ash, | Api, | Targeting cancer stem cells by nutraceuticals for cancer therapy |
| - | Review, | Var, | NA |
| 4686- | QC, | Quercetin suppresses endometrial cancer stem cells via ERα-mediated inhibition of STAT3 signaling |
| - | in-vitro, | EC, | EMN8 | - | in-vitro, | EC, | EMN21 |
| 4787- | QC, | Quercetin: A Phytochemical with Pro-Apoptotic Effects in Colon Cancer Cells |
| - | Review, | CRC, | NA |
| 4827- | QC, | CUR, | Synthetic Pathways and the Therapeutic Potential of Quercetin and Curcumin |
| - | Review, | Var, | NA |
| 5025- | QC, | New perspectives on the therapeutic potential of quercetin in non-communicable diseases: Targeting Nrf2 to counteract oxidative stress and inflammation |
| - | Review, | Nor, | NA |
| 3602- | QC, | The flavonoid quercetin ameliorates Alzheimer's disease pathology and protects cognitive and emotional function in aged triple transgenic Alzheimer's disease model mice |
| - | in-vivo, | AD, | NA |
| 5027- | QC, | NRF2 Is Targeted By the Polyphenol Quercetin and Induces Apoptosis, in Part, through up Regulation of Pro Apoptotic Mirs |
| - | in-vivo, | AML, | NA |
| 5028- | QC, | Quercetin inhibited LPS-induced cytokine storm by interacting with the AKT1-FoxO1 and Keap1-Nrf2 signaling pathway in macrophages |
| - | vitro+vivo, | Nor, | RAW264.7 |
| 5029- | QC, | Molecular mechanisms of action of quercetin in cancer: recent advances |
| - | in-vitro, | Liver, | HepG2 |
| 5030- | QC, | Quercetin-derived microbial metabolite DOPAC potentiates CD8+ T cell anti-tumor immunity via NRF2-mediated mitophagy |
| - | in-vivo, | Nor, | 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 |
| 6422- | QC, | Quercetin Protects Ethanol-Induced Hepatocyte Pyroptosis via Scavenging Mitochondrial ROS and Promoting PGC-1α-Regulated Mitochondrial Homeostasis in L02 Cells |
| - | in-vitro, | Alcohol, | L02 |
| 7826- | QC, | MBS, | Neuroprotective Potential of Mung Bean (Vigna radiata L.) Polyphenols in Alzheimer's Disease: A Review |
| - | Review, | AD, | NA | - | Review, | Stroke, | NA | - | Review, | Park, | NA |
| 8094- | QC, | KAE, | Dietary Quercetin and Kaempferol: Bioavailability and Potential Cardiovascular-Related Bioactivity in Humans |
| - | Review, | CardioV, | NA |
| 3351- | QC, | Quercetin Exerts Differential Neuroprotective Effects Against H2O2 and Aβ Aggregates in Hippocampal Neurons: the Role of Mitochondria |
| - | Review, | AD, | NA |
| 3361- | QC, | Quercetin ameliorates testosterone secretion disorder by inhibiting endoplasmic reticulum stress through the miR-1306-5p/HSD17B7 axis in diabetic rats |
| - | in-vivo, | Nor, | NA | - | in-vitro, | NA, | NA |
| 3360- | QC, | Role of Flavonoids as Epigenetic Modulators in Cancer Prevention and Therapy |
| - | Review, | Var, | NA |
| 3359- | QC, | Quercetin modifies 5′CpG promoter methylation and reactivates various tumor suppressor genes by modulating epigenetic marks in human cervical cancer cells |
| - | in-vitro, | Cerv, | HeLa |
| 3358- | QC, | Effects of quercetin on the DNA methylation pattern in tumor therapy: an updated review |
| - | Review, | NA, | NA |
| 3357- | QC, | The polyphenol quercetin induces cell death in leukemia by targeting epigenetic regulators of pro-apoptotic genes |
| - | in-vitro, | AML, | HL-60 | - | NA, | NA, | U937 |
| 3356- | QC, | Targeting DNA methyltransferases for cancer therapy |
| - | Review, | Var, | NA |
| 3355- | QC, | Quercetin exhibits cytotoxicity in cancer cells by inducing two-ended DNA double-strand breaks |
| - | in-vitro, | Cerv, | HeLa |
| 3354- | QC, | Quercetin: Its Main Pharmacological Activity and Potential Application in Clinical Medicine |
| - | Review, | Var, | NA |
| 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 |
| 3352- | QC, | A review of quercetin: Antioxidant and anticancer properties |
| - | Review, | Var, | 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 |
| 3350- | QC, | Quercetin and the mitochondria: A mechanistic view |
| - | Review, | NA, | NA |
| 3349- | QC, | Quercetin Exerted Protective Effects in a Rat Model of Sepsis via Inhibition of Reactive Oxygen Species (ROS) and Downregulation of High Mobility Group Box 1 (HMGB1) Protein Expression |
| - | in-vivo, | Sepsis, | NA |
| 3348- | QC, | Quercetin and iron metabolism: What we know and what we need to know |
| - | Review, | NA, | NA |
| 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 |
| 3344- | QC, | Quercetin induced ROS production triggers mitochondrial cell death of human embryonic stem cells |
| - | in-vitro, | Nor, | hESC |
| 3343- | QC, | Quercetin, a Flavonoid with Great Pharmacological Capacity |
| - | Review, | Var, | NA | - | Review, | AD, | NA | - | Review, | Arthritis, | NA |
| 3342- | QC, | Quercetin modulates OTA-induced oxidative stress and redox signalling in HepG2 cells — up regulation of Nrf2 expression and down regulation of NF-κB and COX-2 |
| - | in-vitro, | Nor, | HepG2 |
| 3341- | QC, | Antioxidant Activities of Quercetin and Its Complexes for Medicinal Application |
| - | Review, | Var, | NA | - | Review, | Stroke, | NA |
| 3340- | QC, | Quercetin regulates inflammation, oxidative stress, apoptosis, and mitochondrial structure and function in H9C2 cells by promoting PVT1 expression |
| - | in-vitro, | Nor, | H9c2 |
| 3372- | QC, | FIS, | KAE, | Anticancer Potential of Selected Flavonols: Fisetin, Kaempferol, and Quercetin on Head and Neck Cancers |
| - | Review, | HNSCC, | NA |
| 3534- | QC, | Lyco, | Synergistic protection of quercetin and lycopene against oxidative stress via SIRT1-Nox4-ROS axis in HUVEC cells |
| - | in-vitro, | Nor, | HUVECs |
| 3381- | QC, | Quercetin induces cell death in cervical cancer by reducing O-GlcNAcylation of adenosine monophosphate-activated protein kinase |
| - | in-vitro, | Cerv, | HeLa |
| 3380- | QC, | Quercetin as a JAK–STAT inhibitor: a potential role in solid tumors and neurodegenerative diseases |
| - | Review, | Var, | NA | - | Review, | Park, | NA | - | Review, | AD, | 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
Filter Conditions: Pro/AntiFlg:% IllCat:% CanType:% Cells:% prod#:140 Target#:% State#:% Dir#:%
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