Database Query Results : Quercetin, , CSCs

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


CSCs, Cancer Stem Cells: Click to Expand ⟱
Source:
Type:
Cancer Stem Cells

Phytochemicals (natural plant-derived compounds) that may affect CSCs:
Curcumin
— suppresses self-renewal and pathways (Wnt/Notch/Hedgehog).
Resveratrol
— shown to reduce CSC populations and sphere formation in multiple models.
Sulforaphane (from broccoli sprouts)
— reported to inhibit CSC properties and pathways; active in vitro and in vivo.
EGCG (epigallocatechin-3-gallate, green tea)
— reduces CSC markers and sphere formation in several cancer types.
Quercetin
— reported to inhibit CSC proliferation, self-renewal and invasiveness (breast, endometrial, others).
Berberine
— shown to suppress CSC “stemness” and reduce tumorigenic properties in multiple models.
Genistein (soy isoflavone)
— decreases CSC markers, sphere formation and stemness signaling in prostate/breast/other models.
Honokiol (Magnolia bark)
— shown to eliminate or suppress CSC-like populations in oral, colon, glioma models.
Luteolin
— inhibits stemness/EMT and reduces CSC markers and self-renewal in breast, prostate and other models.
Withaferin A (from Withania somnifera / ashwagandha)
— multiple preclinical reports show WA targets CSCs and reduces tumor growth/metastasis in models.

Circadian disruption in cancer and regulation of cancer stem cells by circadian clock genes: An updated review
Potential Role of the Circadian Clock in the Regulation of Cancer Stem Cells and Cancer Therapy
Can we utilise the circadian clock to target cancer stem cells?
Scientific Papers found: Click to Expand⟱
4687- LT,  QC,    Dietary Flavonoids Luteolin and Quercetin Suppressed Cancer Stem Cell Properties and Metastatic Potential of Isolated Prostate Cancer Cells
- in-vitro, Pca, DU145
CSCs↓, Since luteolin and quercetin were able to target CSC cells and prevent cancer cell invasiveness, may serve as potential anti-angiogenesis and anti-metastasis agents.
EMT↓, Furthermore, reversed epithelial-mesenchymal transition (EMT) to reduce MMP secretion by Lu and Qu exert inhibition of migration and invasion abilities in A431 cells
MMPs↓,
TumCMig↓,
TumCI↓,

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↓,

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

4665- QC,  Ash,  Api,    Targeting cancer stem cells by nutraceuticals for cancer therapy
- Review, Var, NA
CSCs↓, we will describe the some natural chemopreventive agents that target CSCs in a variety of human malignancies, including soy isoflavone, curcumin, resveratrol, tea polyphenols, sulforaphane, quercetin, indole-3-carbinol, 3,3′-diindolylmethane, withafe

4686- QC,    Quercetin suppresses endometrial cancer stem cells via ERα-mediated inhibition of STAT3 signaling
- in-vitro, EC, EMN8 - in-vitro, EC, EMN21
CSCs↓, downregulated the expression of stemness markers, including ALDH1A1, c-Myc, Nanog, and Oct4
ALDH1A1↓, the expression of stemness markers—ALDH1A1, c-Myc, Nanog and Oct4 was examined, and as expected, all were downregulated following Quercetin treatment
cMyc↓,
Nanog↓,
OCT4↓,
STAT3↓, Quercetin suppressed STAT3/JAK2 phosphorylation and subsequently inhibited the transcriptional activity of STAT3’s downstream target gene, Oct4
JAK2↓,
STAT3↓,
eff↑, Quercetin exerts inhibitory roles via the presence of estrogen receptor (ER) in CSCs derived from endometrial cancer cells


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

Results for Effect on Cancer/Diseased Cells:
Akt↓,2,   ALDH1A1↓,1,   angioG↓,2,   Apoptosis↑,1,   Bak↑,1,   BAX↑,2,   Bcl-2↓,2,   Beclin-1↑,1,   Ca+2↝,1,   Casp10↑,1,   Casp3↓,1,   Casp3↑,1,   Casp8↑,1,   Casp9↑,2,   CDK1↓,1,   CDK2↑,1,   CHOP↑,1,   cMyc↓,3,   COL1↓,1,   COL3A1↓,1,   COX2↓,2,   CRP↓,1,   CSCs↓,5,   CycB↓,1,   cycD1↓,1,   Cyt‑c↑,1,   DFF45↑,1,   DR5↑,2,   E-cadherin↓,1,   eff↑,1,   EGF↓,1,   EGFR↓,2,   EMT↓,3,   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↓,1,   IFN-γ↓,1,   IGFBP3↑,1,   IKKα↓,1,   IL10↓,1,   IL1β↓,1,   IL6↓,2,   IL8↓,1,   Inflam↓,1,   iNOS↓,1,   JAK2↓,1,   LC3B-II↑,1,   LDH↑,1,   LEF1↓,1,   MAPK↓,1,   MAPK↑,1,   MDA↓,1,   miR-21↑,1,   MMP↓,1,   MMP2↓,2,   MMP7↓,1,   MMP9↓,1,   MMPs↓,3,   mTOR↓,2,   Nanog↓,1,   NF-kB↓,2,   NOTCH↓,1,   NOTCH1↓,1,   NRF2↑,1,   OCT4↓,1,   other↓,1,   P-gp↓,1,   p38↑,1,   P450↓,1,   P53↑,2,   PARP↓,1,   cl‑PARP↑,1,   PDGF↓,1,   PI3K↓,2,   p‑pRB↓,1,   Raf↓,1,   RAGE↓,1,   RAS↓,1,   ROS↓,1,   ROS↑,2,   Shh↓,1,   Slug↓,1,   Snail↓,1,   SOD↑,1,   Sp1/3/4↓,1,   STAT3↓,3,   survivin↓,1,   TGF-β↓,2,   TLR4↓,1,   TNF-α↓,2,   TNFR 1↑,1,   TRAILR↑,1,   TSP-1↑,2,   TumCCA↑,2,   TumCI↓,1,   TumCMig↓,1,   uPA↓,1,   uPAR↓,1,   VEGF↓,2,   VEGFR2↓,1,   Vim↓,1,   Wnt↓,1,   XIAP↓,1,   β-catenin/ZEB1↓,1,  
Total Targets: 115

Results for Effect on Normal Cells:
NRF2↑,1,   ROS↓,1,  
Total Targets: 2

Scientific Paper Hit Count for: CSCs, Cancer Stem Cells
5 Quercetin
1 Luteolin
1 Ashwagandha(Withaferin A)
1 Apigenin (mainly Parsley)
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:140  Target#:795  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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