Curcumin / p62 Cancer Research Results

CUR, Curcumin: Click to Expand ⟱
Features:
Curcumin is the main active ingredient in Tumeric. Member of the ginger family.Curcumin is a polyphenol extracted from turmeric with anti-inflammatory and antioxidant properties.
- Has iron-chelating, iron-chelating properties. Ferritin. But still known to increase Iron in Cancer cells.
- GSH depletion in cancer cells, exhaustion of the antioxidant defense system. But still raises GSH↑ in normal cells.
- Higher concentrations (5-10 μM) of curcumin induce autophagy and ROS production
- Inhibition of TrxR, shifting the enzyme from an antioxidant to a prooxidant
- Strong inhibitor of Glo-I, , causes depletion of cellular ATP and GSH
- Curcumin has been found to act as an activator of Nrf2, (maybe bad in cancer cells?), hence could be combined with Nrf2 knockdown
-may suppress CSC: suppresses self-renewal and pathways (Wnt/Notch/Hedgehog).
Clinical studies testing curcumin in cancer patients have used a range of dosages, often between 500 mg and 8 g per day; however, many studies note that doses on the lower end may not achieve sufficient plasma concentrations for a therapeutic anticancer effect in humans.
• Formulations designed to improve curcumin absorption (like curcumin combined with piperine, nanoparticle formulations, or liposomal curcumin) are often employed in clinical trials to enhance its bioavailability.

-Note half-life 6 hrs.
BioAv is poor, use piperine or other enhancers
Pathways:
- induce ROS production at high concentration. Lowers ROS at lower concentrations
curcumin can act as a pro-oxidant when blue light is applied
- ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓
- Lowers AntiOxidant defense in Cancer Cells: GSH↓ Catalase↓ HO1↓ GPx↓
but conversely is known as a NRF2↑ activator in cancer
- Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑,
- lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : TNF-α↓, IL-6↓, IL-8↓
- inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, uPA↓, VEGF↓, NF-κB↓, CXCR4↓, SDF1↓, TGF-β↓, α-SMA↓, ERK↓
- reactivate genes thereby inhibiting cancer cell growth : HDAC↓, DNMT1↓, DNMT3A↓, EZH2↓, P53↑, HSP↓, Sp proteins↓,
- cause Cell cycle arrest : TumCCA↑, cyclin D1↓, CDK2↓, CDK4↓, CDK6↓,
- inhibits Migration/Invasion : TumCMig↓, TumCI↓, ERK↓, EMT↓, TOP1↓, TET1↓,
- inhibits glycolysis /Warburg Effect and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDHA↓, HK2↓, PFKs↓, PDKs↓, HK2↓, ECAR↓, OXPHOS↓, GRP78↑, GlucoseCon↓
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, FGF↓, PDGF↓, EGFR↓, Integrins↓,
- inhibits Cancer Stem Cells : CSC↓, CK2↓, Hh↓, GLi1↓, CD133↓, CD24↓, β-catenin↓, n-myc↓, sox2↓, OCT4↓,
- Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK↓, ERK↓, JNK, TrxR**,
- 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 NF-κB signaling ↓ NF-κB activation ↓ inflammatory NF-κB tone Driver Suppression of survival and inflammatory transcription NF-κB is a primary, repeatedly validated curcumin target explaining pleiotropic downstream effects
2 STAT3 signaling ↓ STAT3 phosphorylation / activity ↔ or mild suppression Driver Loss of pro-survival and proliferative signaling STAT3 inhibition contributes to growth arrest, apoptosis sensitization, and reduced cytokine signaling in tumors
3 Reactive oxygen species (ROS) ↑ ROS (dose- & context-dependent) ↓ ROS / buffered Conditional Driver Biphasic redox modulation Curcumin can act as a pro-oxidant in cancer cells with high basal stress while acting antioxidant in normal cells
4 Mitochondrial integrity / intrinsic apoptosis ↓ ΔΨm; ↑ caspase activation ↔ preserved Driver Execution of intrinsic apoptosis Mitochondrial dysfunction and caspase activation occur downstream of NF-κB/STAT3 and ROS effects
5 PI3K → AKT → mTOR axis ↓ AKT / ↓ mTOR ↔ or adaptive suppression Secondary Reduced growth and anabolic signaling AKT/mTOR inhibition contributes to growth suppression and autophagy induction in cancer cells
6 Autophagy ↑ autophagy (protective or pro-death) ↑ adaptive autophagy Secondary Stress adaptation vs cell death Autophagy may be cytoprotective or cooperate with apoptosis depending on context and dose
7 HIF-1α / VEGF hypoxia–angiogenesis axis ↓ HIF-1α; ↓ VEGF ↔ minimal effect Secondary Anti-angiogenic pressure Suppression of hypoxia-driven transcription limits angiogenesis and tumor adaptation
8 Cell cycle regulation ↑ G2/M or G1 arrest ↔ largely spared Phenotypic Cytostatic growth control Cell-cycle arrest reflects upstream signaling and epigenetic effects rather than direct CDK inhibition
9 Migration / invasion (EMT, MMP axis) ↓ migration & invasion ↔ Phenotypic Anti-metastatic phenotype Reduced EMT markers and protease activity limit invasive behavior
10 Epigenetic regulation (p300/CBP HAT activity) ↓ histone acetylation ↔ modest Secondary Transcriptional reprogramming Curcumin modulates chromatin via HAT inhibition rather than classic HDAC inhibition


p62, p62/sequestosome 1 (SQSTM1): Click to Expand ⟱
Source:
Type:
A protein that plays a crucial role in various cellular processes, including autophagy, cell signaling, and protein degradation.
p62 is a scaffold protein that interacts with various signaling molecules, including kinases, phosphatases, and ubiquitin ligases. It is also a substrate of autophagy, a process by which cells recycle damaged or dysfunctional organelles and proteins.
p62 is overexpressed in various types of cancer, including breast, lung, colon, and liver cancer.
Its overexpression has been associated with poor prognosis and reduced survival in some cancers.
Scientific Papers found: Click to Expand⟱
463- CUR,    Curcumin induces autophagic cell death in human thyroid cancer cells
- in-vitro, Thyroid, K1 - in-vitro, Thyroid, FTC-133 - in-vitro, Thyroid, BCPAP - in-vitro, Thyroid, 8505C
TumAuto↑, LC3II↑, Beclin-1↑, p‑p38↑, p‑JNK↑, p‑ERK↑, p62↓, p‑PDK1↓, p‑Akt↓, p‑p70S6↓, p‑PIK3R1↓, p‑S6↓, p‑4E-BP1↓,
471- CUR,    Curcumin induces apoptotic cell death and protective autophagy by inhibiting AKT/mTOR/p70S6K pathway in human ovarian cancer cells
- in-vitro, Ovarian, SKOV3 - in-vitro, Ovarian, A2780S
Apoptosis↑, TumAuto↑, p62↓, p‑Akt↓, p‑mTOR↓, p‑P70S6K↓, Casp9↑, PARP↑, ATG3↑, Beclin-1↑, LC3‑Ⅱ/LC3‑Ⅰ↑,
435- CUR,    Antitumor activity of curcumin by modulation of apoptosis and autophagy in human lung cancer A549 cells through inhibiting PI3K/Akt/mTOR pathway
- in-vitro, Lung, A549
Apoptosis↑, TumAuto↑, LC3‑Ⅱ/LC3‑Ⅰ↑, Beclin-1↑, p62↓, PI3K↓, Akt↓, mTOR↓, p‑Akt↓, p‑mTOR↓,
448- CUR,    Heat shock protein 27 influences the anti-cancer effect of curcumin in colon cancer cells through ROS production and autophagy activation
- in-vitro, CRC, HT-29
Apoptosis↑, TumCCA↑, p‑Akt↓, Akt↓, Bcl-2↓, p‑BAD↓, BAD↑, cl‑PARP↑, ROS↑, HSP27↑, Beclin-1↑, p62↑, GPx1↓, GPx4↓,
477- CUR,    Curcumin induces G2/M arrest and triggers autophagy, ROS generation and cell senescence in cervical cancer cells
- in-vitro, Cerv, SiHa
TumCP↓, TumCCA↑, Apoptosis↑, TumAuto↑, CycB/CCNB1↓, CDC25↓, ROS↑, p62↑, LC3‑Ⅱ/LC3‑Ⅰ↑, cl‑Casp3↑, cl‑PARP↑, P53↑, P21↑,
872- CUR,  RES,    New Insights into Curcumin- and Resveratrol-Mediated Anti-Cancer Effects
- in-vitro, BC, TUBO - in-vitro, BC, SALTO
TumCP↓, tumCV↓, p62↓, p62↑, TumAuto↑, TumAuto↓, ROS↑, ROS↓, CHOP↑,
404- CUR,    Curcumin induces ferroptosis in non-small-cell lung cancer via activating autophagy
- vitro+vivo, Lung, A549 - vitro+vivo, Lung, H1299
TumAuto↑, TumCG↓, TumCP↓, Iron↑, GSH↓, lipid-P↑, GPx↓, mtDam↑, autolysosome↑, Beclin-1↑, LC3s↑, p62↓, Ferroptosis↑,

Showing Research Papers: 1 to 7 of 7

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 7

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

Ferroptosis↑, 1,   GPx↓, 1,   GPx1↓, 1,   GPx4↓, 1,   GSH↓, 1,   Iron↑, 1,   lipid-P↑, 1,   ROS↓, 1,   ROS↑, 3,  

Mitochondria & Bioenergetics ⓘ

CDC25↓, 1,   mtDam↑, 1,  

Core Metabolism/Glycolysis ⓘ

p‑PDK1↓, 1,   p‑PIK3R1↓, 1,   p‑S6↓, 1,  

Cell Death ⓘ

Akt↓, 2,   p‑Akt↓, 4,   Apoptosis↑, 4,   BAD↑, 1,   p‑BAD↓, 1,   Bcl-2↓, 1,   cl‑Casp3↑, 1,   Casp9↑, 1,   Ferroptosis↑, 1,   p‑JNK↑, 1,   p‑p38↑, 1,  

Kinase & Signal Transduction ⓘ

p‑p70S6↓, 1,  

Transcription & Epigenetics ⓘ

tumCV↓, 1,  

Protein Folding & ER Stress ⓘ

CHOP↑, 1,   HSP27↑, 1,  

Autophagy & Lysosomes ⓘ

ATG3↑, 1,   autolysosome↑, 1,   Beclin-1↑, 5,   LC3‑Ⅱ/LC3‑Ⅰ↑, 3,   LC3II↑, 1,   LC3s↑, 1,   p62↓, 5,   p62↑, 3,   TumAuto↓, 1,   TumAuto↑, 6,  

DNA Damage & Repair ⓘ

P53↑, 1,   PARP↑, 1,   cl‑PARP↑, 2,  

Cell Cycle & Senescence ⓘ

CycB/CCNB1↓, 1,   P21↑, 1,   TumCCA↑, 2,  

Proliferation, Differentiation & Cell State ⓘ

p‑4E-BP1↓, 1,   p‑ERK↑, 1,   mTOR↓, 1,   p‑mTOR↓, 2,   p‑P70S6K↓, 1,   PI3K↓, 1,   TumCG↓, 1,  

Migration ⓘ

TumCP↓, 3,  
Total Targets: 53

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: p62, p62/sequestosome 1 (SQSTM1)
7 Curcumin
1 Resveratrol
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#:65  Target#:602  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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