condition found tbRes List
QC, Quercetin: Click to Expand ⟱
Features:
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


angioG, angiogenesis: Click to Expand ⟱
Source:
Type:
Process through which new blood vessels.
Angiogenesis, the process of new blood vessel formation from pre-existing vessels, plays a crucial role in cancer progression and metastasis. Tumors require a blood supply to grow beyond a certain size and to spread to other parts of the body.
Vascular Endothelial Growth Factor (VEGF): VEGF is one of the most important pro-angiogenic factors. It stimulates endothelial cell proliferation and migration, leading to the formation of new blood vessels. Many tumors overexpress VEGF, which correlates with poor prognosis.
Hypoxia-Inducible Factor (HIF): In response to low oxygen levels (hypoxia), tumors can activate HIF, which in turn promotes the expression of VEGF and other angiogenic factors. This mechanism allows tumors to adapt to their microenvironment and sustain growth.
Scientific Papers found: Click to Expand⟱
923- QC,    Quercetin as an innovative therapeutic tool for cancer chemoprevention: Molecular mechanisms and implications in human health
- Review, Var, NA
ROS↑, decided by the availability of intracellular reduced glutathione (GSH),
GSH↓, extended exposure with high concentration of quercetin causes a substantial decline in GSH levels
Ca+2↝,
MMP↓,
Casp3↑, activation of caspase-3, -8, and -9
Casp8↑,
Casp9↑,
other↓, when p53 is inhibited, cancer cells become vulnerable to quercetin-induced apoptosis
*ROS↓, Quercetin (QC), a plant-derived bioflavonoid, is known for its ROS scavenging properties and was recently discovered to have various antitumor properties in a variety of solid tumors.
*NRF2↑, Moreover, the therapeutic efficacy of QC has also been defined in rat models through the activation of Nrf-2/HO-1 against high glucose-induced damage
HO-1↑,
TumCCA↑, QC increases cell cycle arrest via regulating p21WAF1, cyclin B, and p27KIP1
Inflam↓, QC-mediated anti-inflammatory and anti-apoptotic properties play a key role in cancer prevention by modulating the TLR-2 (toll-like receptor-2) and JAK-2/STAT-3 pathways and significantly inhibit STAT-3 tyrosine phosphorylation within inflammatory ce
STAT3↓,
DR5↑, several studies showed that QC upregulated the death receptor (DR)
P450↓, it hinders the activity of cytochrome P450 (CYP) enzymes in hepatocytes
MMPs↓, QC has also been shown to suppress metastatic protein expression such as MMPs (matrix metalloproteases)
IFN-γ↓, QC is its ability to inhibit inflammatory mediators including IFN-γ, IL-6, COX-2, IL-8, iNOS, TNF-α,
IL6↓,
COX2↓,
IL8↓,
iNOS↓,
TNF-α↓,
cl‑PARP↑, Induced caspase-8, caspase-9, and caspase-3 activation, PARP cleavage, mitochondrial membrane depolarization,
Apoptosis↑, increased apoptosis and p53 expression
P53↑,
Sp1/3/4↓, HT-29 colon cancer cells: decreased the expression of Sp1, Sp3, Sp4 mrna, and survivin,
survivin↓,
TRAILR↑, H460 Increased the expression of TRAILR, caspase-10, DFF45, TNFR 1, FAS, and decreased the expression of NF-κb, ikkα
Casp10↑,
DFF45↑,
TNFR 1↑,
Fas↑,
NF-kB↓,
IKKα↓,
cycD1↓, SKOV3 Reduction in cyclin D1 level
Bcl-2↓, MCF-7, HCC1937, SK-Br3, 4T1, MDA-MB-231 Decreased Bcl-2 expression, increasedBax expression, inhibition of PI3K-Akt pathway
BAX↑,
PI3K↓,
Akt↓,
E-cadherin↓, MDA-MB-231 Induced the expression of E-cadherin and downregulated vimentin levels, modulation of β-catenin target genes such as cyclin D1 and c-Myc
Vim↓,
β-catenin/ZEB1↓,
cMyc↓,
EMT↓, MCF-7 Suppressed the epithelial–mesenchymal transition process, upregulated E-cadherin expression, downregulated vimentin and MMP-2 expression, decreased Notch1 expression
MMP2↓,
NOTCH1↓,
MMP7↓, PANC-1, PATU-8988 Decreased the secretion of MMP and MMP7, blocked the STAT3 signaling pathway
angioG↓, PC-3, HUVECs Reduced angiogenesis, increased TSP-1 protein and mrna expression
TSP-1↑,
CSCs↓, PC-3 and LNCaP cells Activated capase-3/7 and inhibit the expression of Bcl-2, surviving and XIAP in CSCs.
XIAP↓,
Snail↓, inhibiting the expression of vimentin, slug, snail and nuclear β-catenin, and the activity of LEF-1/TCF responsive reporter
Slug↓,
LEF1↓,
P-gp↓, MCF-7 and MCF-7/dox cell lines Downregulation of P-gp expression
EGFR↓, MCF-7 and MDA-MB-231 cells Suppressed EGFR signaling and inhibited PI3K/Akt/mTOR/GSK-3β
GSK‐3β↓,
mTOR↓,
RAGE↓, IA Paca-2, BxPC3, AsPC-1, HPAC and PANC1 Silencing RAGE expression
HSP27↓, Breast cancer In vivo NOD/SCID mice Inhibited the overexpression of Hsp27
VEGF↓, QC significantly reversed an elevation in profibrotic markers (VEGF, IL-6, TGF, COL-1, and COL-3)
TGF-β↓,
COL1↓,
COL3A1↓,

3363- QC,    The Protective Effect of Quercetin on Endothelial Cells Injured by Hypoxia and Reoxygenation
- in-vitro, Nor, HBMECs
*Apoptosis↓, Quercetin can promote the viability, migration and angiogenesis of HBMECs, and inhibit the apoptosis.
*angioG↑,
*NRF2↑, quercetin can also activate Keap1/Nrf2 signaling pathway, reduce ATF6/GRP78 protein expression.
*Keap1↓,
*ATF6↓,
*GRP78/BiP↓,
*CLDN5↑, quercetin could increase the expression of Claudin-5 and Zonula occludens-1.
*ZO-1↑,
*MMP↑, reducing mitochondrial membrane potential damage and inhibiting cell apoptosis.
*BBB↑, quercetin can increase the level of BBB connexin, suggesting that quercetin can maintain BBB integrity.
*ROS↓, Quercetin Could Inhibit Oxidative Stress
*ER Stress↓, In our study, ER stress was activated by H/R, and the levels of ATF6 and GRP78 were increased. Quercetin at 1 μmol/L was able to significantly reduce the protein levels of both, inhibit ER stress, and protect HBMECs from H/R injury

3369- QC,    Pharmacological basis and new insights of quercetin action in respect to its anti-cancer effects
- Review, Pca, NA
FAK↓, Quercetin can inhibit HGF-induced melanoma cell migration by inhibiting the activation of c-Met and its downstream Gabl, FAK and PAK [84]
TumCCA↑, stimulation of cell cycle arrest at the G1 stage
p‑pRB↓, mediated through regulation of p21 CDK inhibitor and suppression of pRb phosphorylation resulting in E2F1 sequestering.
CDK2↑, low dose of quercetin has brought minor DNA injury and Chk2 induction
CycB↓, quercetin has a role in the reduction of cyclin B1 and CDK1 levels,
CDK1↓,
EMT↓, quercetin suppresses epithelial to mesenchymal transition (EMT) and cell proliferation through modulation of Sonic Hedgehog signaling pathway
PI3K↓, quercetin on other pathways such as PI3K, MAPK and WNT pathways have also been validated in cervical cancer
MAPK↓,
Wnt↓,
ROS↑, colorectal cancer, quercetin has been shown to suppress carcinogenesis through various mechanisms including affecting cell proliferation, production of reactive oxygen species and expression of miR-21
miR-21↑,
Akt↓, Figure 1 anti-cancer mechanisms
NF-kB↓,
FasL↑,
Bak↑,
BAX↑,
Bcl-2↓,
Casp3↓,
Casp9↑,
P53↑,
p38↑,
MAPK↑,
Cyt‑c↑,
PARP↓,
CHOP↑,
ROS↓,
LDH↑,
GRP78/BiP↑,
ERK↑,
MDA↓,
SOD↑,
GSH↑,
NRF2↑,
VEGF↓,
PDGF↓,
EGF↓,
FGF↓,
TNF-α↓,
TGF-β↓,
VEGFR2↓,
EGFR↓,
FGFR1↓,
mTOR↓,
cMyc↓,
MMPs↓,
LC3B-II↑,
Beclin-1↑,
IL1β↓,
CRP↓,
IL10↓,
COX2↓,
IL6↓,
TLR4↓,
Shh↓,
HER2/EBBR2↓,
NOTCH↓,
DR5↑, quercetin has enhanced DR5 expression in prostate cancer cells
HSP70/HSPA5↓, Quercetin has also suppressed the upsurge of hsp70 expression in prostate cancer cells following heat treatment and enhanced the quantity of subG1 cells
CSCs↓, Quercetin could also suppress cancer stem cell attributes and metastatic aptitude of isolated prostate cancer cells through modulating JNK signaling pathway
angioG↓, Quercetin inhibits angiogenesis-mediated of human prostate cancer cells through negatively modulating angiogenic factors (TGF-β, VEGF, PDGF, EGF, bFGF, Ang-1, Ang-2, MMP-2, and MMP-9)
MMP2↓,
MMP9↓,
IGFBP3↑, Quercetin via increasing the level of IGFBP-3 could induce apoptosis in PC-3 cells
uPA↓, Quercetin through decreasing uPA and uPAR expression and suppressing cell survival protein and Ras/Raf signaling molecules could decrease prostate cancer progression
uPAR↓,
RAS↓,
Raf↓,
TSP-1↑, Quercetin through TSP-1 enhancement could effectively inhibit angiogenesis

3343- QC,    Quercetin, a Flavonoid with Great Pharmacological Capacity
- Review, Var, NA - Review, AD, NA - Review, Arthritis, NA
*antiOx↑, Quercetin has a potent antioxidant capacity, being able to capture reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive chlorine species (ROC),which act as reducing agents by chelating transition-metal ions.
*ROS↓, Quercetin is a potent scavenger of reactive oxygen species (ROS), protecting the organism against oxidative stress
*angioG↓,
*Inflam↓, anti-inflammatory properties; the ability to protect low-density lipoprotein (LDL) oxidation, and the ability to inhibit angiogenesis;
*BioAv↓, It is known that the bioavailability of quercetin is usually relatively low (0.17–7 μg/mL), less than 10% of what is consumed, due to its poor water solubility (hydrophobicity), chemical stability, and absorption profile.
*Half-Life↑, their slow elimination since their half-life ranges from 11 to 48 h, which could favor their accumulation in plasma after repeated intakes
*GSH↑, Animal and cell studies have demonstrated that quercetin induces the synthesis of GSH
*SOD↑, increase in the expression of superoxide dismutase (SOD), catalase (CAT), and GSH with quercetin pretreatment
*Catalase↑,
*Nrf1↑, quercetin accomplishes this process involves increasing the activity of the nuclear factor erythroid 2-related factor 2 (NRF2), enhancing its binding to the ARE, reducing its degradation
*BP↓, quercetin has been shown to inhibit ACE activity, reducing blood pressure
*cardioP↑, quercetin has positive effects on cardiovascular diseases
*IL10↓, Under the influence of quercetin, the levels of interleukin 10 (IL-10), IL-1β, and TNF-α were reduced.
*TNF-α↓,
*Aβ↓, quercetin’s ability to modulate the enzyme activity in clearing amyloid-beta (Aβ) plaques, a hallmark of AD pathology.
*GSK‐3β↓, quercetin can inhibit the activity of glycogen synthase kinase 3β,
*tau↓, thus reducing tau aggregation and neurofibrillary tangles in the brain
*neuroP↑,
*Pain↓, quercetin reduces pain and inflammation associated with arthritis
*COX2↓, quercetin included the inhibition of oxidative stress, production of cytokines such as cyclooxygenase-2 (COX-2) and proteoglycan degradation, and activation of the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) (Nrf2/HO-1)
*NRF2↑,
*HO-1↑,
*IL1β↓, Mechanisms included decreased levels of TNF-α, IL-1β, IL-17, and monocyte chemoattractant protein-1 (MCP-1)
*IL17↓,
*MCP1↓,
PKCδ↓, studies with human leukemia 60 (HL-60) cells report that concentrations between 20 and 30 µM are sufficient to exert an inhibitory effect on cytosolic PKC activity and membrane tyrosine protein kinase (TPK) activity.
ERK↓, 50 µM resulted in the blockade of the extracellular signal-regulated kinases (ERK1/2) pathway
BAX↓, higher doses (75–100 µM) were used, as these doses reduced the expression of proapoptotic factors such as Bcl-2-associated X protein (Bax) and caspases 3 and 9
cMyc↓, induce apoptosis at concentrations of 80 µM and also causes a downregulation of cellular myelocytomatosis (c-myc) and Kirsten RAt sarcoma (K-ras) oncogenes
KRAS↓,
ROS↓, compound’s antioxidative effect changes entirely to a prooxidant effect at high concentrations, which induces selective cytotoxicity
selectivity↑, On the other hand, when noncancerous cells are exposed to quercetin, it exerts cytoprotective effects;
tumCV↓, decrease cell viability in human glioma cultures of the U-118 MG cell line as well as an increase in death by apoptosis and cell arrest at the G2 checkpoint of the cell cycle.
Apoptosis↑,
TumCCA↑,
eff↑, quercetin combined with doxorubicin can induce multinucleation of invasive tumor cells, downregulate P-glycoprotein (P-gp) expression, increase cell sensitivity to doxorubicin,
P-gp↓,
eff↑, resveratrol, quercetin, and catechin can effectively block the cell cycle and reduce cell proliferation in vivo
eff↑, cotreatment with epigallocatechin gallate (EGCG) inhibited catechol-O-methyltransferase (COMT) activity, decreasing COMT protein content and thereby arresting the cell cycle of PC-3 human prostate cancer cells
eff↑, synergistic treatment of tamoxifen and quercetin was also able to inhibit prostate tumor formation by regulating angiogenesis
eff↑, coadministration of 2.5 μM of EGCG, genistein, and quercetin suppressed the cell proliferation of a prostate cancer cell line (CWR22Rv1) by controlling androgen receptor and NAD (P)H: quinone oxidoreductase 1 (NQO1) expression
CycB↓, It can also downregulate cyclin B1 and cyclin-dependent kinase-1 (CDK-1),
CDK1↓,
CDK4↓, quercetin causes a decrease in cyclins D1/Cdk4 and E/Cdk2 and an increase in p21 in vascular smooth muscle cells
CDK2↓,
TOP2↓, quercetin is known to be a potent inhibitor of topoisomerase II (TopoII), a cell cycle-associated enzyme necessary for DNA replication
Cyt‑c↑, quercetin can induce apoptosis (cell death) through caspase-3 and caspase-9 activation, cytochrome c release, and poly ADP ribose polymerase (PARP) cleavage
cl‑PARP↑,
MMP↓, quercetin induces the loss of mitochondrial membrane potential, leading to the activation of the caspase cascade and cleavage of PARP.
HSP70/HSPA5↓, apoptotic effects of quercetin may result from the inhibition of HSP kinases, followed by the downregulation of HSP-70 and HSP-90 protein expression
HSP90↓,
MDM2↓, (MDM2), an onco-protein that promotes p53 destruction, can be inhibited by quercetin
RAS↓, quercetin can prevent Ras proteins from being expressed. In one study, quercetin was found to inhibit the expression of Harvey rat sarcoma (H-Ras), K-Ras, and neuroblastoma rat sarcoma (N-Ras) in human breast cancer cells,
eff↑, there was a substantial difference in EMT markers such as vimentin, N-cadherin, Snail, Slug, Twist, and E-cadherin protein expression in response to AuNPs-Qu-5, inhibiting the migration and invasion of MCF-7 and MDA-MB cells

50- QC,    Anticancer effect and mechanism of polymer micelle-encapsulated quercetin on ovarian cancer
- vitro+vivo, Ovarian, A2780S
Casp3↑,
Casp9↑,
Mcl-1↓,
Bcl-2↓,
BAX↑,
angioG↓,


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 5

Results for Effect on Cancer/Diseased Cells:
Akt↓,2,   angioG↓,3,   Apoptosis↑,2,   Bak↑,1,   BAX↓,1,   BAX↑,3,   Bcl-2↓,3,   Beclin-1↑,1,   Ca+2↝,1,   Casp10↑,1,   Casp3↓,1,   Casp3↑,2,   Casp8↑,1,   Casp9↑,3,   CDK1↓,2,   CDK2↓,1,   CDK2↑,1,   CDK4↓,1,   CHOP↑,1,   cMyc↓,3,   COL1↓,1,   COL3A1↓,1,   COX2↓,2,   CRP↓,1,   CSCs↓,2,   CycB↓,2,   cycD1↓,1,   Cyt‑c↑,2,   DFF45↑,1,   DR5↑,2,   E-cadherin↓,1,   eff↑,6,   EGF↓,1,   EGFR↓,2,   EMT↓,2,   ERK↓,1,   ERK↑,1,   FAK↓,1,   Fas↑,1,   FasL↑,1,   FGF↓,1,   FGFR1↓,1,   GRP78/BiP↑,1,   GSH↓,1,   GSH↑,1,   GSK‐3β↓,1,   HER2/EBBR2↓,1,   HO-1↑,1,   HSP27↓,1,   HSP70/HSPA5↓,2,   HSP90↓,1,   IFN-γ↓,1,   IGFBP3↑,1,   IKKα↓,1,   IL10↓,1,   IL1β↓,1,   IL6↓,2,   IL8↓,1,   Inflam↓,1,   iNOS↓,1,   KRAS↓,1,   LC3B-II↑,1,   LDH↑,1,   LEF1↓,1,   MAPK↓,1,   MAPK↑,1,   Mcl-1↓,1,   MDA↓,1,   MDM2↓,1,   miR-21↑,1,   MMP↓,2,   MMP2↓,2,   MMP7↓,1,   MMP9↓,1,   MMPs↓,2,   mTOR↓,2,   NF-kB↓,2,   NOTCH↓,1,   NOTCH1↓,1,   NRF2↑,1,   other↓,1,   P-gp↓,2,   p38↑,1,   P450↓,1,   P53↑,2,   PARP↓,1,   cl‑PARP↑,2,   PDGF↓,1,   PI3K↓,2,   PKCδ↓,1,   p‑pRB↓,1,   Raf↓,1,   RAGE↓,1,   RAS↓,2,   ROS↓,2,   ROS↑,2,   selectivity↑,1,   Shh↓,1,   Slug↓,1,   Snail↓,1,   SOD↑,1,   Sp1/3/4↓,1,   STAT3↓,1,   survivin↓,1,   TGF-β↓,2,   TLR4↓,1,   TNF-α↓,2,   TNFR 1↑,1,   TOP2↓,1,   TRAILR↑,1,   TSP-1↑,2,   TumCCA↑,3,   tumCV↓,1,   uPA↓,1,   uPAR↓,1,   VEGF↓,2,   VEGFR2↓,1,   Vim↓,1,   Wnt↓,1,   XIAP↓,1,   β-catenin/ZEB1↓,1,  
Total Targets: 121

Results for Effect on Normal Cells:
angioG↓,1,   angioG↑,1,   antiOx↑,1,   Apoptosis↓,1,   ATF6↓,1,   Aβ↓,1,   BBB↑,1,   BioAv↓,1,   BP↓,1,   cardioP↑,1,   Catalase↑,1,   CLDN5↑,1,   COX2↓,1,   ER Stress↓,1,   GRP78/BiP↓,1,   GSH↑,1,   GSK‐3β↓,1,   Half-Life↑,1,   HO-1↑,1,   IL10↓,1,   IL17↓,1,   IL1β↓,1,   Inflam↓,1,   Keap1↓,1,   MCP1↓,1,   MMP↑,1,   neuroP↑,1,   Nrf1↑,1,   NRF2↑,3,   Pain↓,1,   ROS↓,3,   SOD↑,1,   tau↓,1,   TNF-α↓,1,   ZO-1↑,1,  
Total Targets: 35

Scientific Paper Hit Count for: angioG, angiogenesis
5 Quercetin
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:140  Target#:447  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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