Ursolic acid / NO Cancer Research Results

UA, Ursolic acid: Click to Expand ⟱
Features:
Natural compound found in apples and rosemary.
Ursolic acid (UA) is a pentacyclic triterpenoid found in many plants (notably apple peel, rosemary, thyme, holy basil, and other herbs). In cancer models it is best described as a multi-target signaling modulator with prominent effects on NF-κB inflammation/survival transcription, STAT3, PI3K/AKT/mTOR, and MAPK pathways, with downstream outcomes including cell-cycle arrest, apoptosis, anti-angiogenesis, and reduced invasion/EMT. A practical translational constraint is poor aqueous solubility and low oral bioavailability, so many strong in-vitro µM effects may not map cleanly to typical oral exposure without formulation.

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 NF-κB inflammatory / survival transcription NF-κB ↓; COX-2/iNOS/cytokines/Bcl-2 family/MMPs ↓ (reported) Inflammation tone ↓ (context) R, G Anti-inflammatory + anti-survival transcription One of the most frequently reported UA effects across tumor models; downstream impacts include reduced pro-survival and pro-metastatic gene programs.
2 STAT3 axis (JAK/STAT3 signaling) STAT3 activity ↓ (reported); downstream targets ↓ ↔ R, G Oncogenic transcription suppression UA is often reported to suppress STAT3 signaling, contributing to reduced proliferation/survival signaling.
3 PI3K → AKT (± mTOR) survival axis PI3K/AKT ↓; mTORC1 tone ↓ (reported; model-dependent) ↔ R, G Growth/survival modulation Commonly listed mechanism; direction and strength vary by cell line and exposure.
4 MAPK re-wiring (ERK / JNK / p38) Stress-MAPK modulation (context-dependent) ↔ P, R, G Signal reprogramming JNK/p38 activation and ERK modulation are reported variably; avoid fixed arrows unless tied to a specific model.
5 Cell-cycle checkpoints (Cyclins/CDKs; p21/p27) Cell-cycle arrest ↑ (G1/S or G2/M; reported); Cyclin D1/CDKs ↓ (context) ↔ G Cytostasis Often downstream of NF-κB/STAT3/PI3K signaling suppression.
6 Intrinsic apoptosis (mitochondrial/caspase linked) Apoptosis ↑; Bax ↑; Bcl-2 ↓; caspases ↑ (reported) ↔ (generally less activation) G Cell death execution Common downstream endpoint; can be coupled to stress signaling and survival pathway suppression.
7 Angiogenesis signaling (VEGF / HIF-1α outputs) VEGF ↓; angiogenic outputs ↓ (reported) ↔ G Anti-angiogenic support Typically phenotype-level effects tied to NF-κB/PI3K/HIF programs.
8 Invasion / metastasis programs (MMPs / EMT) MMP2/MMP9 ↓; EMT markers ↓; migration/invasion ↓ (reported) ↔ G Anti-invasive phenotype Often downstream of NF-κB/STAT3 changes; not universal across all tumors.
9 ROS / redox modulation ROS direction variable; redox stress or buffering reported (context) Oxidative injury ↓ in some non-tumor stress models P, R, G Stress modulation UA is not a reliable “pro-oxidant killer”; redox effects depend on dose, model, and baseline oxidative state.
10 Bioavailability / formulation constraint Systemic exposure often limited (poor solubility) — — Translation constraint UA is highly lipophilic with poor aqueous solubility; many formulations (e.g., nanoparticles, phospholipid complexes) are explored to improve exposure.

Time-Scale Flag (TSF): P / R / G

  • P: 0–30 min (rapid signaling interactions)
  • R: 30 min–3 hr (acute stress-response + transcription signaling shifts)
  • G: >3 hr (gene-regulatory adaptation and phenotype-level outcomes)
NO, Nitric Oxide: Click to Expand ⟱
Source:
Type:
Once the cancer has begun, NO seems to play a protumoral role rather than antitumoral one as the concentration required to cause tumor cell cytotoxicity cannot be achieved by cancer cells.
The mechanistic roles of nitric oxide (NO) during cancer progression have been important considerations since its discovery as an endogenously generated free radical. Nonetheless, the impacts of this signaling molecule can be seemingly contradictory, being both pro-and antitumorigenic, which complicates the development of cancer treatments based on the modulation of NO fluxes in tumors. At a fundamental level, low levels of NO drive oncogenic pathways, immunosuppression, metastasis, and angiogenesis, while higher levels lead to apoptosis and reduced hypoxia and also sensitize tumors to conventional therapies. However, clinical outcome depends on the type and stage of the tumor as well as the tumor microenvironment.
Nitric oxide is generated by three main nitric oxide synthase isoforms: neuronal (nNOS), endothelial (eNOS), and inducible (iNOS).

– In many cancers, especially under inflammatory conditions, iNOS expression is upregulated. In contrast, eNOS levels may also be altered in cancers such as breast or prostate cancer.

• Expression Patterns in Tumors:
– Elevated iNOS expression is commonly observed in various tumor types (e.g., colon, breast, lung, and melanoma) and is often associated with an inflammatory microenvironment.

– Changes in eNOS and nNOS expression have also been reported and may contribute to angiogenesis and tumor blood flow regulation.
Scientific Papers found: Click to Expand⟱
2411- UA,    Ursolic acid in health and disease
- Review, Var, NA
Inflam↓, antiOx↑, NF-kB↓, Bcl-xL↓, Bcl-2↓, cycD1/CCND1↓, Ki-67↓, CD31↓, STAT3↓, EGFR↓, P53↑, P21↓, HK2↓, PKM2↓, ATP↓, lactateProd↓, p‑ERK↓, MMP↓, NO↑, ATM↑, Casp3↑, AMPK↑, JNK↑, FAO↑, FASN↓, *GSH↑, *SOD↑, *Catalase↑, *GPx↑, *GSTs↑, neuroP↑,
2350- UA,    Ursolic acid-mediated changes in glycolytic pathway promote cytotoxic autophagy and apoptosis in phenotypically different breast cancer cells
- in-vitro, BC, MCF-7 - in-vitro, BC, MDA-MB-231
Akt↓, Glycolysis↓, HK2↓, PKM2↓, ATP↓, lactateProd↓, AMPK↑, TumAuto↑, Apoptosis↑, ERK↓, MMP↓, NO↑, ROS↑, DNAdam↑,

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:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   ROS↑, 1,  

Mitochondria & Bioenergetics ⓘ

ATP↓, 2,   MMP↓, 2,  

Core Metabolism/Glycolysis ⓘ

AMPK↑, 2,   FAO↑, 1,   FASN↓, 1,   Glycolysis↓, 1,   HK2↓, 2,   lactateProd↓, 2,   PKM2↓, 2,  

Cell Death ⓘ

Akt↓, 1,   Apoptosis↑, 1,   Bcl-2↓, 1,   Bcl-xL↓, 1,   Casp3↑, 1,   JNK↑, 1,  

Autophagy & Lysosomes ⓘ

TumAuto↑, 1,  

DNA Damage & Repair ⓘ

ATM↑, 1,   DNAdam↑, 1,   P53↑, 1,  

Cell Cycle & Senescence ⓘ

cycD1/CCND1↓, 1,   P21↓, 1,  

Proliferation, Differentiation & Cell State ⓘ

ERK↓, 1,   p‑ERK↓, 1,   STAT3↓, 1,  

Migration ⓘ

CD31↓, 1,   Ki-67↓, 1,  

Angiogenesis & Vasculature ⓘ

EGFR↓, 1,   NO↑, 2,  

Immune & Inflammatory Signaling ⓘ

Inflam↓, 1,   NF-kB↓, 1,  

Clinical Biomarkers ⓘ

EGFR↓, 1,   Ki-67↓, 1,  

Functional Outcomes ⓘ

neuroP↑, 1,  
Total Targets: 35

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

Catalase↑, 1,   GPx↑, 1,   GSH↑, 1,   GSTs↑, 1,   SOD↑, 1,  
Total Targets: 5

Scientific Paper Hit Count for: NO, Nitric Oxide
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#:164  Target#:563  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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