Quercetin / TIMP2 Cancer Research Results

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.
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

Rank Pathway / Axis Cancer Cells Normal Cells Label Primary Interpretation Notes
1 Reactive oxygen species (ROS) ↑ ROS (dose-, metal-, context-dependent) ↓ ROS Conditional Driver Biphasic redox modulation Quercetin exhibits pro-oxidant behavior in cancer cells while protecting normal cells
2 Mitochondrial integrity / intrinsic apoptosis ↓ ΔΨm; ↑ caspase activation ↔ preserved Driver Execution of intrinsic apoptosis Mitochondrial dysfunction is a central apoptosis route in cancer cells
3 PI3K → AKT → mTOR axis ↓ AKT / ↓ mTOR ↔ adaptive suppression Driver Growth and survival inhibition AKT/mTOR suppression is a consistently reported upstream effect in cancer models
4 NF-κB signaling ↓ NF-κB activation ↓ inflammatory NF-κB tone Secondary Reduced survival and inflammatory transcription NF-κB inhibition contributes to chemosensitization and apoptosis susceptibility
5 MAPK signaling (JNK / p38) ↑ JNK / ↑ p38 ↔ minimal Secondary Stress-mediated apoptosis signaling MAPK activation supports apoptosis downstream of redox stress
6 Cell cycle regulation ↑ G1/S or G2/M arrest ↔ largely spared Phenotypic Cytostatic growth control Cell-cycle arrest reflects disruption of growth signaling
7 HIF-1α hypoxia signaling ↓ HIF-1α ↔ minimal Secondary Reduced hypoxia tolerance Quercetin interferes with hypoxia-driven transcriptional programs
8 NRF2 antioxidant response ↑ NRF2 (adaptive, context-dependent) ↑ NRF2 (protective) Adaptive Stress compensation NRF2 induction reflects redox buffering rather than primary cytotoxicity


TIMP2, Tissue Inhibitor of Metalloproteinases-2: Click to Expand ⟱
Source:
Type:
TIMP-2 has been shown to have distinct effects on cancer progression compared to TIMP-1. Research has suggested that TIMP-2 may have anti-tumor effects in certain types of cancer, including:
• Inhibiting tumor growth: TIMP-2 has been shown to inhibit the growth of tumor cells in vitro and in vivo.
High levels of TIMP-2 have been associated with better prognosis and improved survival in some cancers.
High levels of TIMP-2 have been associated with better prognosis and improved survival in some cancers.
High TIMP-2 expression: Breast, Lung, colorectal, Prostrate.
Low TIMP-2 expression: Ovarian, Pancreatic, Gastric.
Scientific Papers found: Click to Expand⟱
3347- QC,    Recent Advances in Potential Health Benefits of Quercetin
- Review, Var, NA - Review, AD, NA
*antiOx↑, Its strong antioxidant properties enable it to scavenge free radicals, reduce oxidative stress, and protect against cellular damage.
*ROS↓,
*Inflam↓, Quercetin’s anti-inflammatory properties involve inhibiting the production of inflammatory cytokines and enzymes,
TumCP↓, exhibits anticancer effects by inhibiting cancer cell proliferation and inducing apoptosis.
Apoptosis↑,
*cardioP↑, cardiovascular benefits such as lowering blood pressure, reducing cholesterol levels, and improving endothelial function
*BP↓, Quercetin‘s ability to reduce blood pressure was also supported by a different investigation
TumMeta↓, The most important impact of quercetin is its ability to inhibit the spread of certain cancers including those of the breast, cervical, lung, colon, prostate, and liver
MDR1↓, quercetin decreased the expression of genes multidrug resistance protein 1 and NAD(P)H quinone oxidoreductase 1 and sensitized MCF-7 cells to the chemotherapy medication doxorubicin
NADPH↓,
ChemoSen↑,
MMPs↓, Inhibiting CT26 cells’ migration and invasion abilities by inhibiting their expression of tissue inhibitors of metalloproteinases (TIMPs) inhibits their invasion and migration abilities
TIMP2↑,
*NLRP3↓, inhibited NLRP3 by acting on this inflammasome
*IFN-γ↑, quercetin significantly upregulates the gene expression and production of interferon-γ (IFN-γ), which is obtained from T helper cell 1 (Th1), and downregulates IL-4, which is obtained from Th2.
*COX2/PTGS2↓, quercetin is known to decrease the production of inflammatory molecules COX-2, nuclear factor-kappa B (NF-κB), activator protein 1 (AP-1), mitogen-activated protein kinase (MAPK), reactive nitric oxide synthase (NOS), and reactive C-protein (CRP)
*NF-kB↓,
*MAPK↓,
*CRP↓,
*IL6↓, Quercetin suppressed the production of inflammatory cytokines such as IL-6, TNF-α, and IL-1β via upregulating TLR4.
*TNF-α↓,
*IL1β↓,
*TLR4↑,
*PKCδ↓, Quercetin employed suppression on the phosphorylation of PKCδ to control the PKCδ–JNK1/2–c-Jun pathway.
*AP-1↓, This pathway arrested the accumulation of AP-1 transcription factor in the target genes, thereby resulting in reduced ICAM-1 and inflammatory inhabitation
*ICAM-1↓,
*NRF2↑, Quercetin overexpressed Nrf2 and targeted its downstream gene, contributing to increased HO-1 levels responsible for the down-regulation of TNF-α, iNOS, and IL-6
*HO-1↑,
*lipid-P↓, Quercetin acts as a potent antioxidant by scavenging ROS, inhibiting lipid peroxidation, and enhancing the activity of antioxidant enzymes
*neuroP↑, This helps to counteract oxidative stress and protect against neurodegenerative processes that contribute to AD
*eff↑, rats treated with chronic rotenone or 3-nitropropionic acid showed enhanced neuroprotection when quercetin and fish oil were taken orally
*memory↑, Both memory and learning abilities in the test animals increased
*cognitive↑,
*AChE↓, The increase in AChE activity brought on by diabetes was prevented in the cerebral cortex and hippocampus by quercetin at a level of 50 mg/kg body weight.
*BioAv↑, consumption of fried onions compared to black tea, suggesting that the form of quercetin present in onions is better absorbed than that in tea
*BioAv↑, This suggests that dietary fat can increase the absorption of quercetin [180]
*BioAv↑, potential of liposomes to enhance the bioactivity and bioavailability of quercetin has been the subject of several investigations
*BioAv↑, several emulsion types that may be employed to encapsulate quercetin, but oil-in-water (O/W) emulsions are the most widely utilized.
*BioAv↑, the kind of oil (triglyceride oils made up of either long-chain or medium-chain fatty acids) affected the bioaccessibility of quercetin and gastrointestinal stability, emphasizing the significance of picking a suitable oil phase

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
TIMP2↑, MMP2, and MMP9 was significantly decreased by quercetin treatment, while TIMP1 and TIMP2 were upregulated (
TumCG↓, Quercetin significantly suppressed the growth and migration of human GBM T98G cells, induced apoptosis, and arrested cells in the S-phase cell cycle
TumCMig↓,
Apoptosis↑,
TumCCA↑,
MMP↓, collapse of mitochondrial membrane potential, ROS generation, enhanced Bax/Bcl-2 ratio, and strengthened cleaved-Caspase 9 and cleaved-Caspase 3 suggested the involvement of ROS-mediated mitochondria-dependent apoptosis in the process
ROS↑,
Bax:Bcl2↑,
cl‑Casp9↑,
cl‑Casp3↑,
DNAdam↑, quercetin-induced apoptosis was accompanied by intense DNA double-strand breaks (DSBs), γH2AX foci formation, methylation of MGMT promoter, increased cleaved-PARP, and reduced MGMT expression
γH2AX↑,
MGMT↓,
cl‑PARP↑,


Showing Research Papers: 1 to 2 of 2

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 2

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress(tgid=1) ⓘ

ROS↑, 1,  

Mitochondria & Bioenergetics(tgid=3) ⓘ

MMP↓, 1,  

Core Metabolism/Glycolysis(tgid=4) ⓘ

NADPH↓, 1,  

Cell Death(tgid=5) ⓘ

Apoptosis↑, 2,   Bax:Bcl2↑, 1,   cl‑Casp3↑, 1,   cl‑Casp9↑, 1,  

DNA Damage & Repair(tgid=10) ⓘ

DNAdam↑, 1,   MGMT↓, 1,   cl‑PARP↑, 1,   γH2AX↑, 1,  

Cell Cycle & Senescence(tgid=11) ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State(tgid=12) ⓘ

TumCG↓, 1,  

Migration(tgid=13) ⓘ

MMPs↓, 1,   TIMP2↑, 2,   TumCMig↓, 1,   TumCP↓, 1,   TumMeta↓, 1,  

Drug Metabolism & Resistance(tgid=21) ⓘ

ChemoSen↑, 1,   MDR1↓, 1,  
Total Targets: 20

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress(tgid=1) ⓘ

antiOx↑, 1,   HO-1↑, 1,   lipid-P↓, 1,   NRF2↑, 1,   ROS↓, 1,  

Cell Death(tgid=5) ⓘ

MAPK↓, 1,  

Migration(tgid=13) ⓘ

AP-1↓, 1,   PKCδ↓, 1,  

Immune & Inflammatory Signaling(tgid=16) ⓘ

COX2/PTGS2↓, 1,   CRP↓, 1,   ICAM-1↓, 1,   IFN-γ↑, 1,   IL1β↓, 1,   IL6↓, 1,   Inflam↓, 1,   NF-kB↓, 1,   TLR4↑, 1,   TNF-α↓, 1,  

Synaptic & Neurotransmission(tgid=18) ⓘ

AChE↓, 1,  

Protein Aggregation(tgid=19) ⓘ

NLRP3↓, 1,  

Drug Metabolism & Resistance(tgid=21) ⓘ

BioAv↑, 5,   eff↑, 1,  

Clinical Biomarkers(tgid=22) ⓘ

BP↓, 1,   CRP↓, 1,   IL6↓, 1,  

Functional Outcomes(tgid=23) ⓘ

cardioP↑, 1,   cognitive↑, 1,   memory↑, 1,   neuroP↑, 1,  
Total Targets: 29

Scientific Paper Hit Count for: TIMP2, Tissue Inhibitor of Metalloproteinases-2
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#:308  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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