Piperine / 5HT 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)


5HT, Serotonin: Click to Expand ⟱
Source:
Type:
Serotonin (5-hydroxytryptamine or 5-HT) is best known as a neurotransmitter; however, it also plays diverse roles in peripheral tissues, including modulation of cell proliferation, angiogenesis, and immune responses.

Several studies have identified the expression of multiple 5-HT receptors (e.g., 5-HT1A, 5-HT2A, and 5-HT7) in breast cancer cells.
Serotonin may promote tumor cell proliferation and can influence breast cancer progression through receptor-mediated signaling pathways.

Expression of 5-HT and its receptors is documented in various cancers including breast, colorectal, pancreatic, prostate, and hepatocellular carcinoma.
Overexpression of particular 5-HT receptors often correlates with increased cell proliferation, angiogenesis, and metastatic potential.
High levels of 5-HT receptor expression generally serve as a marker for poor prognosis, although the exact prognostic implications vary depending on the specific receptor subtype and tumor type.

-Vomiting caused by chemotherapy was thought to result from the fact that the chemotherapeutics stimulated the secretion of 5-HT in intestinal chromaffin cells, and then 5-HT acted on 5-HT receptor which caused excitation of nerves and vomiting reflex.
Scientific Papers found: Click to Expand⟱
3587- PI,    Piperine: A review of its biological effects
- Review, Park, NA - Review, AD, NA
*hepatoP↑, *Inflam↓, *neuroP↑, *antiOx↑, *angioG↑, *cardioP↑, *BioAv↑, *P450↓, *eff↑, *BioAv↑, E-cadherin↓, ER(estro)↓, MMP2↓, MMP9↓, VEGF↓, cMyc↓, BAX↑, P53↑, TumCG↓, OS↑, *cognitive↑, *GSK‐3β↓, *GSH↑, *Casp3↓, *Casp9↓, *Cyt‑c↓, *lipid-P↓, *motorD↑, *AChE↓, *memory↑, *cardioP↑, *ROS↓, *PPARγ↑, *ALAT↓, *AST↓, *ALP↓, *AMPK↑, *5HT↑, *SIRT1↑, *eff↑,

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:


Core Metabolism/Glycolysis ⓘ

cMyc↓, 1,  

Cell Death ⓘ

BAX↑, 1,  

DNA Damage & Repair ⓘ

P53↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

TumCG↓, 1,  

Migration ⓘ

E-cadherin↓, 1,   MMP2↓, 1,   MMP9↓, 1,  

Angiogenesis & Vasculature ⓘ

VEGF↓, 1,  

Hormonal & Nuclear Receptors ⓘ

ER(estro)↓, 1,  

Functional Outcomes ⓘ

OS↑, 1,  
Total Targets: 10

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   GSH↑, 1,   lipid-P↓, 1,   ROS↓, 1,  

Core Metabolism/Glycolysis ⓘ

ALAT↓, 1,   AMPK↑, 1,   PPARγ↑, 1,   SIRT1↑, 1,  

Cell Death ⓘ

Casp3↓, 1,   Casp9↓, 1,   Cyt‑c↓, 1,  

Proliferation, Differentiation & Cell State ⓘ

GSK‐3β↓, 1,  

Angiogenesis & Vasculature ⓘ

angioG↑, 1,  

Immune & Inflammatory Signaling ⓘ

Inflam↓, 1,  

Synaptic & Neurotransmission ⓘ

5HT↑, 1,   AChE↓, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↑, 2,   eff↑, 2,   P450↓, 1,  

Clinical Biomarkers ⓘ

ALAT↓, 1,   ALP↓, 1,   AST↓, 1,  

Functional Outcomes ⓘ

cardioP↑, 2,   cognitive↑, 1,   hepatoP↑, 1,   memory↑, 1,   motorD↑, 1,   neuroP↑, 1,  
Total Targets: 28

Scientific Paper Hit Count for: 5HT, Serotonin
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#:1119  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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