Database Query Results : Betulinic acid, , UPR

BetA, Betulinic acid: Click to Expand ⟱
Features:
Betulinic acid "buh-TOO-li-nik acid" is a natural compound with antiretroviral, anti malarial, anti-inflammatory and anticancer properties. It is found in the bark of several plants, such as white birch, ber tree and rosemary, and has a complex mode of action against tumor cells.
-Betulinic acid is a naturally occurring pentacyclic triterpenoid
-vitro concentrations range from 1–100 µM, in vivo studies in rodents have generally used doses from 10–100 mg/kg
Precursor: Betulin, via oxidation at C-28
Lipophilicity: High (poor aqueous solubility)
-half-life reports vary 3-5 hrs?. Reported half-life varies by formulation and species; several studies report multi-hour systemic persistence.
BioAv -hydrophobic molecule with relatively poor water solubility. 
Main Cancer action
-Direct mitochondrial targeting in cancer cells
-Minimal effect on normal cells

Key pathways
-Mitochondrial membrane permeabilization
-ROS-mediated apoptosis
-Caspase-independent death

Chemo relevance: Generally compatible, Not a redox buffer

Pathways:
- often induce ROS production
- ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓
- Lowers AntiOxidant defense in Cancer Cells(Often associated with reduced redox buffering capacity in tumor cells (e.g., GSH depletion); NRF2 direction model-dependent.): NRF2↓, SOD↓, GSH↓
- May Raise AntiOxidant defense in Normal Cells: NRF2↑, SOD↑, GSH↑, Catalase↑ Reports suggest relative sparing of normal cells and preservation of antioxidant capacity in some models
- lowers Inflammation : NF-kB↓(typ), COX2↓, p38↓ (context-dependent; often stress-activated), Pro-Inflammatory Cytokines : IL-1β↓, TNF-α↓, IL-6↓, IL-8↓
- inhibit Growth/Metastases : , MMPs↓, MMP2↓, MMP9↓, TIMP2, IGF-1↓, VEGF↓, ROCK1↓, FAK↓, NF-κB↓, TGF-β↓, α-SMA↓, ERK↓
- reactivate genes thereby inhibiting cancer cell growth : P53↑, HSP↓(model-dependent), Sp proteins↓,
- cause Cell cycle arrest : TumCCA↑, cyclin D1↓, CDK2↓, CDK4↓,
- inhibits Migration/Invasion : TumCMig↓, TumCI↓, FAK↓, ERK↓, EMT↓, TOP1↓,
- inhibits glycolysis (secondary to mitochondrial stress) ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, PFKs↓, PDKs↓, HK2↓, ECAR↓, GRP78↑(ER stress), GlucoseCon↓
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, EGFR↓,
- inhibits Cancer Stem Cells in some studies : CSC↓, GLi1↓, β-catenin↓, OCT4↓,
- Others: PI3K↓(typ), AKT↓(typ), JAK↓, STAT↓, β-catenin↓, AMPK↓(AMPK is often activated during metabolic stress), ERK↓, JNK,
- Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective,
- Selectivity: Cancer Cells vs Normal Cells

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Intrinsic apoptosis (mitochondrial-mediated) ↑ mitochondria depolarization; ↑ cytochrome-c; ↑ caspase-9/3 activation ↔ limited activation (higher exposure required) R, G Execution of apoptosis Betulinic acid (BA) is well known to engage the intrinsic apoptotic cascade, typically downstream of redox and signaling perturbations.
2 ROS / redox stress ↑ ROS (P→R) ↔ basal or antioxidant adaptation in some contexts P, R Stress induction Many studies report ROS elevation in tumor cells exposed to BA; the direction and magnitude vary by cell type and exposure.
3 Mitochondrial permeability transition / ΔΨm loss ΔΨm ↓ (R→G) ↔ maintained R, G Mitochondrial failure Often observed as an early event preceding caspase activation in apoptosis studies.
4 PI3K / AKT / mTOR survival axis ↓ PI3K/AKT signaling; ↓ phospho-mTOR ↔ R, G Survival/growth suppression Betulinic acid often downregulates pro-survival kinase signaling, sensitizing cells to apoptosis and cytostasis.
5 NF-κB signaling ↓ NF-κB activity ↔ R, G Pro-survival/inflammatory transcription suppression Reduction in NF-κB activity limits pro-survival gene expression; supports sensitization to stressors.
6 MAPK re-wiring (JNK / ERK / p38) Stress-MAPK shifts; JNK/p38 often ↑; ERK context-dependent ↔ P, R Early stress signaling MAPK responses vary by model, with stress-associated p38/JNK often activated and ERK modulation variable.
7 Cell-cycle checkpoints (p21, p27, cyclins) ↑ p21/p27; ↑ G1/S or G2/M arrest ↔ G Proliferation arrest BA often induces cell-cycle blockade, slowing proliferation before apoptosis commitment.
8 Angiogenic signaling (VEGF & related) ↓ VEGF; anti-angiogenic outputs ↔ G Anti-angiogenic support Typically seen at the level of reduced pro-angiogenic factor expression or secretion in longer-term assays.
9 EMT / invasion / migration programs (MMPs) ↓ MMP2/MMP9; ↓ migration/invasion ↔ G Anti-invasive phenotype Often measured as reduced invasive capacity and decreased expression of EMT markers in later time points.
10 Autophagy modulation ↑ LC3-II; ↑ autophagic flux (model dependent) ↔ G Adaptive clearance / cell fate shift BA can modulate autophagy, which may either sensitize cells to death pathways or reflect adaptive stress responses.

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

  • P: 0–30 min (primary/physical-chemical effects; rapid kinase/redox signaling)
  • R: 30 min–3 hr (acute redox and stress-response activation)
  • G: >3 hr (gene-regulatory adaptation and phenotypic outcomes)
UPR, Unfolded Protein Response: Click to Expand ⟱
Source:
Type:
Cellular stress response related to the endoplasmic reticulum (ER) stress, which involves protein folding, quality control, and signaling pathways. The unfolded protein response (UPR) is the cells' way of maintaining the balance of protein folding in the endoplasmic reticulum. (UPR) is triggered by the presence of misfolded proteins in the endoplasmic reticulum.
The UPR is a cellular stress response activated by the accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER).
- It is primarily mediated by three ER-resident sensors: IRE1α, PERK, and ATF6.

Cancer cells often experience high levels of protein synthesis, hypoxia, nutrient deprivation, and oxidative stress, all of which can activate the UPR.
– Numerous studies have reported that key UPR components (e.g., GRP78/BiP, IRE1α, PERK, CHOP) are overexpressed in various malignancies such as breast, pancreatic, lung, and prostate cancers.

Unfolded Protein Response is typically upregulated in cancers and is associated with poorer prognosis due to its role in promoting cell survival, adaptation to stress, and therapeutic resistance. Although the UPR harbors the potential for tumor-suppressive (apoptotic) effects under severe stress conditions, its predominant activation in tumors supports an adaptive, protumorigenic state that facilitates cancer progression. Targeting UPR components and modulating this balance remain promising therapeutic strategies.
Scientific Papers found: Click to Expand⟱

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 0

Pathway results for Effect on Cancer / Diseased Cells:


Total Targets: 0

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: UPR, Unfolded Protein Response
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#:42  Target#:459  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

Home Page