Quercetin / PI3K/Akt 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.

-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


PI3K/Akt, PI3K/Akt signaling: Click to Expand ⟱
Source: HalifaxProj(inhibit) TCGA
Type:
The PI3K/Akt signaling pathway plays a crucial role in various cellular processes, including growth, proliferation, survival, and metabolism.
Pathway Components:
Phosphoinositide 3-kinases (PI3Ks): A family of enzymes that phosphorylate the inositol ring of phosphatidylinositol, leading to the production of phosphatidylinositol (3,4,5)-trisphosphate (PIP3).
Akt (Protein Kinase B): A serine/threonine kinase that is activated by PIP3. Once activated, Akt phosphorylates various substrates involved in cell survival and growth.
Overactivation can lead to uncontrolled cell growth.
Angiogenesis: Akt can promote the expression of pro-angiogenic factors, facilitating the formation of new blood vessels to supply tumors with nutrients and oxygen.
Scientific Papers found: Click to Expand⟱
99- QC,    Quercetin Inhibits Epithelial-to-Mesenchymal Transition (EMT) Process and Promotes Apoptosis in Prostate Cancer via Downregulating lncRNA MALAT1
- in-vitro, Pca, PC3
EMT↓, E-cadherin↑, N-cadherin↓, Ki-67↓, PI3K/Akt↓, MALAT1↓, TumCG↓,
52- QC,    Effect of Quercetin on Cell Cycle and Cyclin Expression in Ovarian Carcinoma and Osteosarcoma Cell Lines
- in-vitro, BC, MCF-7 - in-vitro, Ovarian, SKOV3 - in-vitro, OS, U2OS
Bcl-2↓, BAX↑, PI3K/Akt↓, cycD1/CCND1↓, TumCCA↑,
54- QC,    Quercetin‑3‑methyl ether suppresses human breast cancer stem cell formation by inhibiting the Notch1 and PI3K/Akt signaling pathways
- in-vitro, BC, MCF-7
EMT↓, E-cadherin↑, Vim↓, MMP2↓, NOTCH1↓, PI3K/Akt↓, PI3k/Akt/mTOR↓, p‑Akt↓, EZH2↓, H3K27ac↓, TumCCA↑, CSCs↓, CDK1↓, CycB/CCNB1↓, Bcl-xL↓, Bcl-2↓, Nanog↓, H3↓,
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
Bcl-2↓, BAX↑, Cyt‑c↑, MMP↓, PI3K/Akt↓, Casp3↑, Casp9↑, TumCG↓, Apoptosis↑, CSCs↓,
39- QC,    A Comprehensive Analysis and Anti-Cancer Activities of Quercetin in ROS-Mediated Cancer and Cancer Stem Cells
- Analysis, NA, NA
ROS↑, GSH↓, IL6↓, COX2↓, IL8↓, iNOS↓, TNF-α↓, MAPK↑, ERK↑, SOD↑, ATP↓, Casp↑, PI3K/Akt↓, mTOR↓, NOTCH1↓, Bcl-2↓, BAX↑, IFN-γ↓, TumCP↓, TumCCA↑, Akt↓, P70S6K↓, *Keap1↓, *GPx↑, *Catalase↑, *HO-1↑, *NRF2↑, NRF2↑, eff↑, HIF-1↓,
96- QC,  docx,    Quercetin reverses docetaxel resistance in prostate cancer via androgen receptor and PI3K/Akt signaling pathways
- vitro+vivo, Pca, LNCaP - in-vitro, Pca, PC3
PI3K/Akt↓, Ki-67↓, BAX↑, Bcl-2↓, EpCAM↓, Twist↓, E-cadherin↑, P-gp↓, TumCP↓, TumCMig↓, TumCI↓,
89- QC,  doxoR,    Quercetin reverses the doxorubicin resistance of prostate cancer cells by downregulating the expression of c-met
- in-vitro, Pca, PC3
PI3K/Akt↓, cMET↓, Casp3↑, Casp9↑, MMP↓, ChemoSen↑, ROS↑,
71- QC,    Role of Bax in quercetin-induced apoptosis in human prostate cancer cells
- in-vitro, Pca, LNCaP - in-vitro, Pca, PrEC - in-vitro, Pca, YPEN-1 - in-vitro, Pca, HCT116
Casp8↑, Casp9↑, PARP↑, BAD↓, BAX↑, PI3K/Akt↓, Cyt‑c↑, selectivity↑,
82- QC,  ATG,    Arctigenin in combination with quercetin synergistically enhances the anti-proliferative effect in prostate cancer cells
- in-vitro, Pca, LNCaP
AR↓, PI3K/Akt↓, miR-21↓, STAT3↓, BAD↓, PRAS40↓, GSK‐3β↓, PSA↓, NKX3.1↑, Bax:Bcl2↑, miR-19b↓, miR-148a↓, AMPKα↓, TumCP↓, chemoPv↑, TumCMig↓,

Showing Research Papers: 1 to 9 of 9

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 9

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

GSH↓, 1,   NRF2↑, 1,   ROS↑, 2,   SOD↑, 1,  

Mitochondria & Bioenergetics ⓘ

ATP↓, 1,   MMP↓, 2,  

Core Metabolism/Glycolysis ⓘ

PI3K/Akt↓, 9,   PI3k/Akt/mTOR↓, 1,  

Cell Death ⓘ

Akt↓, 1,   p‑Akt↓, 1,   Apoptosis↑, 1,   BAD↓, 2,   BAX↑, 5,   Bax:Bcl2↑, 1,   Bcl-2↓, 5,   Bcl-xL↓, 1,   Casp↑, 1,   Casp3↑, 2,   Casp8↑, 1,   Casp9↑, 3,   Cyt‑c↑, 2,   iNOS↓, 1,   MAPK↑, 1,  

Kinase & Signal Transduction ⓘ

AMPKα↓, 1,  

Transcription & Epigenetics ⓘ

EZH2↓, 1,   H3↓, 1,   miR-21↓, 1,  

DNA Damage & Repair ⓘ

NKX3.1↑, 1,   PARP↑, 1,  

Cell Cycle & Senescence ⓘ

CDK1↓, 1,   CycB/CCNB1↓, 1,   cycD1/CCND1↓, 1,   TumCCA↑, 3,  

Proliferation, Differentiation & Cell State ⓘ

cMET↓, 1,   CSCs↓, 2,   EMT↓, 2,   EpCAM↓, 1,   ERK↑, 1,   GSK‐3β↓, 1,   H3K27ac↓, 1,   mTOR↓, 1,   Nanog↓, 1,   NOTCH1↓, 2,   P70S6K↓, 1,   STAT3↓, 1,   TumCG↓, 2,  

Migration ⓘ

E-cadherin↑, 3,   Ki-67↓, 2,   MALAT1↓, 1,   miR-148a↓, 1,   miR-19b↓, 1,   MMP2↓, 1,   N-cadherin↓, 1,   TumCI↓, 1,   TumCMig↓, 2,   TumCP↓, 3,   Twist↓, 1,   Vim↓, 1,  

Angiogenesis & Vasculature ⓘ

HIF-1↓, 1,  

Barriers & Transport ⓘ

P-gp↓, 1,  

Immune & Inflammatory Signaling ⓘ

COX2↓, 1,   IFN-γ↓, 1,   IL6↓, 1,   IL8↓, 1,   PSA↓, 1,   TNF-α↓, 1,  

Hormonal & Nuclear Receptors ⓘ

AR↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 1,   eff↑, 1,   selectivity↑, 1,  

Clinical Biomarkers ⓘ

AR↓, 1,   EZH2↓, 1,   IL6↓, 1,   Ki-67↓, 2,   PSA↓, 1,  

Functional Outcomes ⓘ

chemoPv↑, 1,   PRAS40↓, 1,  
Total Targets: 77

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

Catalase↑, 1,   GPx↑, 1,   HO-1↑, 1,   Keap1↓, 1,   NRF2↑, 1,  
Total Targets: 5

Scientific Paper Hit Count for: PI3K/Akt, PI3K/Akt signaling
9 Quercetin
1 Docetaxel
1 doxorubicin
1 Arctigenin
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#:253  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

 

Home Page