Niclosamide (Niclocide) / STAT3 Cancer Research Results

NCL, Niclosamide (Niclocide): Click to Expand ⟱
Features:

Niclosamide (brand: Niclocide; NIC) — salicylanilide anthelmintic (tapeworm drug) being investigated for drug repurposing in oncology due to multi-pathway signaling inhibition and mitochondrial/energy-stress effects. Sources: Rx/essential-medicines antiparasitic; multiple repurposing reviews.

Primary mechanisms (conceptual rank):
1) Mitochondrial energy disruption (uncoupling / ATP depletion; AMPK-linked energy stress)
2) Wnt/β-catenin inhibition (LRP6/β-catenin axis; stemness/CSC phenotypes)
3) STAT3 inhibition (anti-survival transcription)
4) mTORC1 suppression (growth/anabolism ↓; autophagy context)
5) NF-κB / Notch modulation (context-dependent; anti-inflammatory/anti-survival)

Bioavailability / PK relevance: Poor solubility and low/variable oral systemic exposure are major constraints; formulation work (e.g., solution approaches) is used to improve reproducibility/systemic availability.

In-vitro vs oral exposure: Many anticancer effects are observed at concentrations that can exceed typical systemic exposure from standard oral dosing (qualifier: high concentration only for direct tumor cytotoxicity in many models).

Clinical evidence status: Approved antiparasitic; oncology remains preclinical + early/small human repurposing studies (no established oncology RCT approval/indication).

Niclosamide (Niclocide) — Cancer vs Normal Cell Pathway Map

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Mitochondrial energy metabolism (OXPHOS uncoupling / ATP) ↓ ATP (primary; dose-dependent) ↓ ATP (high concentration only) P/R Energy stress → growth inhibition Core pharmacology includes mitochondrial/energy disruption; can trigger downstream stress signaling.
2 Wnt/β-catenin (LRP6/β-catenin; CSC/stemness) ↓ (model-dependent) ↔ R/G Reduced proliferation / stemness programs Frequently highlighted in repurposing; relevant in Wnt-driven or CSC-enriched contexts.
3 STAT3 ↓ ↔ R/G Anti-survival transcription blockade Often positioned as a central anti-tumor axis and combination-sensitization mechanism.
4 mTORC1 / growth-anabolism ↓ ↔ / ↓ (stress-dependent) R/G Reduced anabolic signaling Frequently co-reported with Wnt/STAT3 inhibition; can couple to autophagy responses.
5 AMPK (energy-stress sensor) ↑ (context-dependent) ↑ (stress-dependent) R Catabolic shift / growth suppression Often downstream of ATP depletion; can antagonize mTORC1 signaling.
6 NF-κB ↓ (context-dependent) ↓ (context-dependent) R/G Reduced inflammatory / survival programs Not always dominant; varies by model and inflammatory dependence.
7 Notch ↓ (model-dependent) ↔ G Differentiation / stemness modulation Reported in repurposing literature; often secondary to broader stress/signaling effects.
8 ROS ↑ (dose-dependent) ↔ / ↑ (high concentration only) P/R Oxidative stress contribution Can be downstream of mitochondrial disruption; may contribute to cytotoxicity or resistance depending on context.
9 NRF2 (protective vs resistance role) ↔ / ↑ (adaptive; context-dependent) ↔ / ↑ (adaptive) R/G Stress-response adjustment Typically secondary; may reduce sensitivity if antioxidant adaptation dominates.
10 Autophagy ↑ or ↓ (context-dependent) ↔ / ↑ (stress-dependent) R/G Stress adaptation vs cell-death coupling Often described as a stress-response phenotype; can be cytostatic or pro-death depending on tumor context.
11 Ca²⁺ signaling ↔ (stress-related) ↔ P/R No primary axis Not a canonical primary target; include only if a specific model shows ER/mitochondrial Ca²⁺ disruption.
12 Clinical Translation Constraint ↓ (constraint) ↓ (constraint) — Exposure variability + formulation dependence Poor solubility/low systemic exposure and high variability with oral dosing drive repurposing limitations; solution/formulation approaches aim to increase systemic availability.

TSF legend: P: 0–30 min; R: 30 min–3 hr; G: >3 hr
STAT3, Signal transducer and activator of transcription 3: Click to Expand ⟱
Source:
Type: Oncogene
Stat3 (Signal Transducer and Activator of Transcription 3) is a transcription factor that plays a crucial role in various cellular processes, including cell growth, survival, differentiation, and immune response.
Stat3 is frequently found to be constitutively activated in many types of cancers, including breast, prostate, lung, and head and neck cancers. (associated with poor prognosis and reduced survival.)

-STAT3 is typically activated by cytokines (such as IL-6) and growth factors binding to their respective receptors.
-Activated STAT3 upregulates the expression of genes that promote cell cycle progression (e.g., cyclin D1) and anti-apoptotic proteins (e.g., Bcl-2, Bcl-xL).
Scientific Papers found: Click to Expand⟱
1269- NCL,    Identification of Niclosamide as a New Small-Molecule Inhibitor of the STAT3 Signaling Pathway
- in-vitro, Pca, DU145
STAT3↓, TumCG↓, Apoptosis↑, TumCCA↑, cycD1/CCND1↓, cMyc↓, Bcl-xL↓,
1271- NCL,    Niclosamide inhibits ovarian carcinoma growth by interrupting cellular bioenergetics
- vitro+vivo, Ovarian, SKOV3
Wnt/(β-catenin)↓, mTOR↓, STAT3↓, NF-kB↓, NOTCH↓, TumCG↓, Apoptosis↑, MEK↓, ERK↓, mitResp↓, Glycolysis↓, ROS↑, JNK↑,
5253- NCL,    Niclosamide: Beyond an antihelminthic drug
- Review, Var, NA
TumCP↓, Apoptosis↑, EMT↓, β-catenin/ZEB1↓, TumCG↓, toxicity↓, Wnt↓, LRP6↓, eff↑, DR5↑, mTORC1↓, pH↓, CSCs↓, IL6↓, JAK1↓, STAT3↓, ChemoSen↑, TumCG↓, tumCV↓, NOTCH↓, NF-kB↓, EGFR↓, ROS↑, RadioS↑, cFos↓, cJun↓, E2Fs↓, cMyc↓, Half-Life↓, BioAv↝,
5254- NCL,    The magic bullet: Niclosamide
- Review, Var, NA
Wnt↓, β-catenin/ZEB1↓, RAS↓, STAT3↓, NOTCH↓, E2Fs↓, mTOR↓, eff↑, PD-1↓, PD-L1↓, BioAv↝, toxicity↓, BioAv↑, ETC↑, NADH:NAD↓, TCA↑, Warburg↓, Diff↑, AMPK↑, P53↑, PP2A↑, HIF-1↓, KRAS↓, Myc↓, RadioS↑, ChemoSen↑, Dose↝, Dose↑,

Showing Research Papers: 1 to 4 of 4

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 4

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

ROS↑, 2,  

Mitochondria & Bioenergetics ⓘ

ETC↑, 1,   MEK↓, 1,   mitResp↓, 1,  

Core Metabolism/Glycolysis ⓘ

AMPK↑, 1,   cMyc↓, 2,   Glycolysis↓, 1,   NADH:NAD↓, 1,   TCA↑, 1,   Warburg↓, 1,  

Cell Death ⓘ

Apoptosis↑, 3,   Bcl-xL↓, 1,   DR5↑, 1,   JNK↑, 1,   Myc↓, 1,  

Transcription & Epigenetics ⓘ

cJun↓, 1,   tumCV↓, 1,  

DNA Damage & Repair ⓘ

P53↑, 1,  

Cell Cycle & Senescence ⓘ

cycD1/CCND1↓, 1,   E2Fs↓, 2,   TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

cFos↓, 1,   CSCs↓, 1,   Diff↑, 1,   EMT↓, 1,   ERK↓, 1,   LRP6↓, 1,   mTOR↓, 2,   mTORC1↓, 1,   NOTCH↓, 3,   RAS↓, 1,   STAT3↓, 4,   TumCG↓, 4,   Wnt↓, 2,   Wnt/(β-catenin)↓, 1,  

Migration ⓘ

KRAS↓, 1,   TumCP↓, 1,   β-catenin/ZEB1↓, 2,  

Angiogenesis & Vasculature ⓘ

EGFR↓, 1,   HIF-1↓, 1,  

Immune & Inflammatory Signaling ⓘ

IL6↓, 1,   JAK1↓, 1,   NF-kB↓, 2,   PD-1↓, 1,   PD-L1↓, 1,  

Cellular Microenvironment ⓘ

pH↓, 1,  

Protein Aggregation ⓘ

PP2A↑, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↑, 1,   BioAv↝, 2,   ChemoSen↑, 2,   Dose↑, 1,   Dose↝, 1,   eff↑, 2,   Half-Life↓, 1,   RadioS↑, 2,  

Clinical Biomarkers ⓘ

EGFR↓, 1,   IL6↓, 1,   KRAS↓, 1,   Myc↓, 1,   PD-L1↓, 1,  

Functional Outcomes ⓘ

toxicity↓, 2,  
Total Targets: 61

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: STAT3, Signal transducer and activator of transcription 3
4 Niclosamide (Niclocide)
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#:13  Target#:373  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

 

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