Database Query Results : Curcumin, , Trx2

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
- 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


Trx2, thioredoxin 2: Click to Expand ⟱
Source:
Type:
Trx2 is an essential component of the mitochondrial thioredoxin system, working closely with thioredoxin reductase 2 (TrxR2) to reduce oxidized proteins and protect cells from oxidative stress.
- Mitochondrial thioredoxin (TRX-2).
• By preserving mitochondrial integrity and regulating reactive oxygen species (ROS) levels, Trx2 contributes to cell survival, apoptosis regulation, and metabolic adaptation—all of which are critical in cancer biology.

• Elevated levels of Trx2 may protect tumor cells against oxidative damage, potentially contributing to chemoresistance.
- Overexpression of Trx2 might be associated with more aggressive phenotypes and poorer clinical outcomes, although further studies are needed for definitive prognostic conclusions.


Scientific Papers found: Click to Expand⟱
1981- CUR,    Mitochondrial targeted curcumin exhibits anticancer effects through disruption of mitochondrial redox and modulation of TrxR2 activity
- in-vitro, Lung, NA
eff↑, Mitocurcumin, showed 25-50 fold higher efficacy in killing lung cancer cells as compared to curcumin
ROS↑, Mitocurcumin increased the mitochondrial reactive oxygen species (ROS
mt-GSH↓, decreased the mitochondrial glutathione levels
Bax:Bcl2↑, increased BAX to BCL-2 ratio
Cyt‑c↑, cytochrome C release into the cytosol
MMP↓, loss of mitochondrial membrane potential
Casp3↑, increased caspase-3 activity
Trx2↓, mitocurcumin revealed that it binds to the active site of the mitochondrial thioredoxin reductase (TrxR2) with high affinity
TrxR↓, In corroboration with the above finding, mitocurcumin decreased TrxR activity in cell free as well as the cellular system.
mt-DNAdam↑, mitochondrial DNA damage


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 1

Results for Effect on Cancer/Diseased Cells:
Bax:Bcl2↑,1,   Casp3↑,1,   Cyt‑c↑,1,   mt-DNAdam↑,1,   eff↑,1,   mt-GSH↓,1,   MMP↓,1,   ROS↑,1,   Trx2↓,1,   TrxR↓,1,  
Total Targets: 10

Results for Effect on Normal Cells:

Total Targets: 0

Scientific Paper Hit Count for: Trx2, thioredoxin 2
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:65  Target#:1218  State#:%  Dir#:%
wNotes=on sortOrder:rid,rpid

 

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