Pterostilbene / PERK Cancer Research Results

PTS, Pterostilbene: Click to Expand ⟱
Features:
Antioxidant found in blueberries, cranberries and grapes.
Pterostilbene (trans-3,5-dimethoxy-40-hydroxystilbene) is a naturally occurring stilbene, found mainly in blueberries and grapes. It is a dimethylated derivative of resveratrol with comparable antioxidant, anti-inflammatory and anticarcinogenic properties [26].
-more bioavailable than resveratrol
-Antioxidant activity: Reduces reactive oxygen species and lipid peroxidation
-Anti-inflammatory: Downregulates pro-inflammatory cytokines- IL-1β, TNF-α, NF-κB
-Amyloid pathology:inhibits Aβ aggregation and promotes clearance- Aβ, APP, BACE1
-Reduces hyperphosphorylation of tau protein
-Inhibits histone deacetylases (HDACs)
-Increases acetylcholine by inhibiting acetylcholinesterase
-Sirtuin activation

Rank Pathway / Axis Cancer Cells Normal Cells Label Primary Interpretation Notes
1 SIRT1 / AMPK metabolic sensing ↑ AMPK; context-dependent SIRT1 modulation ↑ SIRT1 / ↑ AMPK Driver Energy-stress signaling Pterostilbene strongly engages energy-sensing pathways due to high bioavailability
2 PI3K → AKT → mTOR axis ↓ AKT / ↓ mTOR ↔ adaptive suppression Driver Growth and survival inhibition AKT/mTOR suppression explains cytostatic and pro-apoptotic effects in cancer cells
3 Reactive oxygen species (ROS) ↑ ROS (mild, dose-dependent) ↓ ROS / buffered Conditional Driver Biphasic redox modulation More balanced redox profile than resveratrol; weaker pro-oxidant behavior
4 Mitochondrial integrity / intrinsic apoptosis ↓ ΔΨm; ↑ caspase activation ↔ preserved Secondary Execution of apoptosis Mitochondrial apoptosis follows metabolic and redox stress
5 NF-κB signaling ↓ NF-κB activation ↓ inflammatory NF-κB tone Secondary Suppression of inflammatory survival programs NF-κB inhibition contributes to anti-invasive and chemosensitizing effects
6 Cell cycle regulation ↑ G1 or G2/M arrest ↔ spared Phenotypic Cytostatic growth control Cell-cycle arrest reflects upstream metabolic and signaling effects
7 NRF2 antioxidant response ↑ NRF2 (adaptive) ↑ NRF2 (protective) Adaptive Redox compensation NRF2 activation contributes to stress buffering rather than primary cytotoxicity


PERK, protein kinase-like ER kinase: Click to Expand ⟱
Source:
Type:
PERK is a type of kinase that is activated in response to endoplasmic reticulum (ER) stress, which occurs when the ER is overwhelmed with unfolded or misfolded proteins. Once activated, PERK phosphorylates and activates the eukaryotic translation initiation factor 2 alpha (eIF2α), leading to the attenuation of global protein synthesis and the induction of specific genes involved in the UPR.
PERK is overexpressed in various types of cancer, including breast, lung, and colon cancer, and that its expression is often associated with poor prognosis.
PERK has been shown to have both tumor-suppressive and tumor-promoting roles, depending on the context.
-PERK, as the sensor of ER stress.
Scientific Papers found: Click to Expand⟱
4693- PTS,    Pterostilbene in the treatment of inflammatory and oncological diseases
BioAv↑, *Inflam↓, *antiOx↑, AntiTum↑, BBB↑, Half-Life↝, *ROS↓, *NRF2↑, *NQO1↑, *HO-1↑, PTEN↑, miR-19b↓, TumCCA↑, ER Stress↑, PERK↑, ATF4↑, CHOP↑, Ca+2↝, EMT↓, NF-kB↓, Twist↓, Vim↓, E-cadherin↑, ChemoSen↑, toxicity∅, toxicity↝,

Showing Research Papers: 1 to 1 of 1

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

Pathway results for Effect on Cancer / Diseased Cells:


Protein Folding & ER Stress ⓘ

CHOP↑, 1,   ER Stress↑, 1,   PERK↑, 1,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

EMT↓, 1,   PTEN↑, 1,  

Migration ⓘ

Ca+2↝, 1,   E-cadherin↑, 1,   miR-19b↓, 1,   Twist↓, 1,   Vim↓, 1,  

Angiogenesis & Vasculature ⓘ

ATF4↑, 1,  

Barriers & Transport ⓘ

BBB↑, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↑, 1,   ChemoSen↑, 1,   Half-Life↝, 1,  

Functional Outcomes ⓘ

AntiTum↑, 1,   toxicity↝, 1,   toxicity∅, 1,  
Total Targets: 20

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   HO-1↑, 1,   NQO1↑, 1,   NRF2↑, 1,   ROS↓, 1,  

Immune & Inflammatory Signaling ⓘ

Inflam↓, 1,  
Total Targets: 6

Scientific Paper Hit Count for: PERK, protein kinase-like ER kinase
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#:139  Target#:617  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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