Piperine / ATF2 Cancer Research Results

PI, Piperine: Click to Expand ⟱
Features:
Compound of black pepper that boosts bioavailability of curcumin

piperine’s bioenhancing function, often more important than piperine’s direct anticancer activity 
Mechanisms of bioenhancement
| Mechanism                     | Effect                             |
| ----------------------------- | ---------------------------------- |
| **↓ CYP3A4, CYP2C9**          | Slows metabolic clearance          |
| **↓ UGT (glucuronidation)**   | Increases parent compound exposure |
| **↓ P-glycoprotein (ABCB1)**  | Improves intracellular retention   |
| **↑ Intestinal permeability** | Better oral absorption             |

-Curcumin: ↑ bioavailability ~20–30×
-Resveratrol, EGCG, quercetin: ↑ exposure 2–10×

Primary pathways: NF-κB, STAT3, PI3K/Akt/mTOR, apoptosis, EMT
Direct anticancer potency: modest
Bioenhancing value: central and often dominant
Rank Pathway / Target Axis Direction Primary Effect Notes / Cancer Relevance Ref
1 Wnt / β-catenin signaling ↓ Wnt/β-catenin (↓ β-catenin nuclear program) Growth & stemness suppression Piperine suppresses canonical Wnt signaling and shows anti-cancer effects in colorectal cancer cells (ref)
2 PI3K → AKT survival signaling ↓ PI3K/AKT signaling Reduced survival / increased apoptosis Gastric cancer study concludes piperine inhibits proliferation and induces apoptosis through inhibition of PI3K/Akt signaling (ref)
3 AKT → mTOR axis ↓ Akt/mTOR Anti-growth + anti-migration Piperine downregulates Akt/mTOR signaling with associated inhibition of migration and MMP-9 expression (ref)
4 NF-κB transcriptional program ↓ NF-κB activation Reduced inflammatory / pro-survival gene expression Piperine is reported as a potent inhibitor of NF-κB and related transcription factor activity in melanoma cells (ref)
5 STAT3 → Snail EMT axis ↓ STAT3 / ↓ Snail → ↓ EMT Anti-migration / anti-invasion Piperine inhibits colorectal cancer migration/invasion through a STAT3/Snail-mediated EMT mechanism (ref)
6 Multidrug resistance transporter ABCB1 (P-gp) ↓ P-gp-mediated efflux (chemosensitization) Improved chemo response (MDR reversal) Demonstrates piperine has chemosensitizing activity in P-gp–mediated MDR models (piperine characterized as P-gp substrate/modulator) (ref)
7 ROS / oxidative stress ↑ ROS Upstream stress trigger Piperine induces oxidative stress in cancer cells (ROS increase shown) and links it to growth inhibition/apoptosis (ref)
8 Intrinsic apoptosis (caspase activation) ↑ apoptosis Programmed cell death HeLa study: piperine induces apoptosis in a dose-dependent manner with apoptosis markers reported (ref)
9 Autophagy-dependent cell death (ROS–Akt/mTOR coupling) ↑ autophagy-dependent death (with ↓ Akt/mTOR) Stress-lethal program Colon cancer study: piperine induces autophagy-dependent cell death by increasing ROS and inhibiting Akt/mTOR signaling (ref)
10 Cell-cycle progression ↑ cell-cycle arrest (context-dependent) Proliferation blockade Rectal cancer cell study: piperine impairs cell-cycle progression and produces cytostatic/cytotoxic effects (ref)
11 Migration / invasion (MMP-9 axis) ↓ migration / ↓ MMP-9 Anti-metastatic phenotype Piperine suppresses migration with MMP-9 downregulation and Akt/mTOR inhibition (ref)
12 In vivo chemosensitization (doxorubicin) ↑ doxorubicin sensitivity Enhanced therapeutic efficacy Study evaluates piperine as an adjuvant to enhance doxorubicin sensitivity in triple-negative breast cancer models (ref)


ATF2, Activating Transcription Factor 2: Click to Expand ⟱
Source:
Type:
ATF2 (Activating Transcription Factor 2)
-ATF2 is a member of the ATF/CREB (cyclic AMP response element‐binding protein) family of transcription factors.
-It functions by binding to specific DNA sequences to regulate the transcription of a variety of target genes involved in cell proliferation, stress response, apoptosis, and differentiation.
-ATF2 activity is regulated through phosphorylation by stress-activated protein kinases such as JNK, p38, and ERK, integrating signals from various cellular stressors.

-Increased ATF2 activity in certain lung cancer subtypes has been linked with increased invasiveness and metastatic potential.
Scientific Papers found: Click to Expand⟱
5210- PI,    Piperine is a potent inhibitor of nuclear factor-kappaB (NF-kappaB), c-Fos, CREB, ATF-2 and proinflammatory cytokine gene expression in B16F-10 melanoma cells
- in-vitro, Melanoma, B16-BL6
IL1β↓, TNF-α↓, MMPs↓, p65↓, p50↓, NF-kB↓, ATF2↓, cFos↓, CREB↓,
1016- PI,    Piperine suppresses the Wnt/β-catenin pathway and has anti-cancer effects on colorectal cancer cells
- in-vitro, CRC, HCT116 - in-vitro, CRC, SW480 - in-vitro, CRC, DLD1
β-catenin/ZEB1↓, Wnt↓, TumCP↓, TumCMig↓, *antiOx↑, *Inflam↓, *hepatoP↑, *neuroP↑, *Bacteria↓, *memory↑, AntiCan↑, NF-kB↓, cFos↓, ATF2↓, CREB↓,

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:


Core Metabolism/Glycolysis ⓘ

CREB↓, 2,  

Cell Death ⓘ

ATF2↓, 2,  

Proliferation, Differentiation & Cell State ⓘ

cFos↓, 2,   Wnt↓, 1,  

Migration ⓘ

MMPs↓, 1,   TumCMig↓, 1,   TumCP↓, 1,   β-catenin/ZEB1↓, 1,  

Immune & Inflammatory Signaling ⓘ

IL1β↓, 1,   NF-kB↓, 2,   p50↓, 1,   p65↓, 1,   TNF-α↓, 1,  

Functional Outcomes ⓘ

AntiCan↑, 1,  
Total Targets: 14

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,  

Immune & Inflammatory Signaling ⓘ

Inflam↓, 1,  

Functional Outcomes ⓘ

hepatoP↑, 1,   memory↑, 1,   neuroP↑, 1,  

Infection & Microbiome ⓘ

Bacteria↓, 1,  
Total Targets: 6

Scientific Paper Hit Count for: ATF2, Activating Transcription Factor 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#:133  Target#:1295  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

 

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