Betulinic acid / JNK Cancer Research Results

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)

Betulinic acid — Betulinic acid is a naturally occurring lupane-type pentacyclic triterpenoid with broad experimental anticancer activity, especially against melanoma, neuroectodermal, glioma, breast, colorectal, and other solid-tumor models. It is a natural-product small molecule, usually abbreviated BA or BetA, and is found in several plants, classically birch bark, with semi-synthesis commonly starting from betulin. A distinguishing feature is preferential induction of tumor-cell death through direct mitochondrial injury with relative sparing of many non-neoplastic cells in preclinical systems. Its main translational limitation is very poor aqueous solubility with correspondingly weak oral/systemic developability unless formulation or derivatization is used.

Primary mechanisms (ranked):

  1. Direct mitochondrial membrane permeabilization with intrinsic apoptosis activation
  2. Mitochondrial ROS increase with collapse of mitochondrial membrane potential and cytochrome c release
  3. ER-stress and unfolded-protein-response activation, including GRP78-linked stress signaling
  4. Suppression of NF-κB and other pro-survival transcriptional programs, including Sp-family signaling in some models
  5. Cell-cycle arrest with reduced cyclin/CDK signaling
  6. Anti-migratory and anti-invasive effects via EMT, FAK, ROCK1, MMP, and cytoskeletal remodeling pathways
  7. Secondary metabolic suppression of aerobic glycolysis and hypoxia-response signaling in susceptible models
  8. Adjunct sensitization to chemo- or radiotherapy in selected preclinical settings

Bioavailability / PK relevance: Betulinic acid is highly lipophilic and poorly water-soluble, which strongly limits oral absorption and systemic exposure. PK behavior is formulation-dependent, and much of the translational literature focuses on nanoparticles, liposomes, micelles, conjugates, or topical delivery rather than conventional oral dosing.

In-vitro vs systemic exposure relevance: Many in-vitro anticancer studies use low-to-mid micromolar concentrations, which are often difficult to reproduce reliably in vivo with unformulated parent betulinic acid. Accordingly, mechanistic findings are useful biologically, but direct concentration matching to standard oral/systemic use is often poor unless enhanced-delivery systems are used.

Clinical evidence status: Strong preclinical and formulation-development literature; very limited human oncology evidence. Cancer-facing clinical development appears to remain early-phase/topical, with orphan designation for topical metastatic melanoma but no FDA approval for that indication. Betulinic acid itself is not an established approved anticancer drug.

-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

Mechanistic profile

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 Mitochondrial permeabilization ↑ MOMP, ↓ ΔΨm, ↑ cytochrome c release, ↑ apoptosis ↔ / milder effect P-R Core tumor-selective death trigger Best-supported central mechanism; helps explain activity in apoptosis-competent but therapy-resistant tumors.
2 Mitochondrial ROS increase ↑ ROS ↔ / possible antioxidant sparing (context-dependent) P-R Amplifies mitochondrial stress and death signaling ROS appears mechanistically relevant in many tumor models, but not every study makes it the dominant initiating event.
3 Caspase axis and caspase-independent death ↑ caspase-9, ↑ caspase-3, ↑ PARP cleavage; caspase-independent death also reported ↔ R-G Executes apoptosis after mitochondrial injury BA can still kill some tumor cells when classical caspase execution is partly blocked, indicating non-canonical death contribution.
4 ER stress / UPR / GRP78 ↑ ER stress, ↑ UPR, ↑ GRP78 stress signaling ↔ R-G Links proteostatic stress to apoptosis and metastasis suppression Especially relevant in breast and gastric cancer models; may also connect to metabolic suppression and chemosensitization.
5 NF-κB survival signaling ↓ NF-κB ↔ / ↓ inflammatory tone R-G Reduces survival, inflammatory, and resistance programs Common downstream convergence node across several tumor types.
6 Cell-cycle machinery ↓ cyclin D1, ↓ CDK2, ↓ CDK4, ↑ cell-cycle arrest ↔ G Slows proliferation Usually supportive rather than primary; often follows stress and survival-pathway disruption.
7 EMT / invasion / matrix remodeling ↓ EMT, ↓ FAK, ↓ ROCK1, ↓ MMP2, ↓ MMP9, ↓ migration, ↓ invasion ↔ G Antimetastatic effect Consistent with reduced motility and invasive phenotype in multiple solid-tumor models.
8 Glycolysis ↓ glucose uptake, ↓ lactate, ↓ ECAR, ↓ HK2, ↓ PKM2, ↓ LDHA ↔ G Secondary metabolic suppression Not the universal initiating mechanism; appears important in selected breast-cancer and GRP78-linked systems.
9 HIF-1α hypoxia axis ↓ HIF-1α, ↓ VEGF, ↓ GLUT1, ↓ PDK1 ↔ G Reduces hypoxic adaptation and angiogenic drive Relevant in hypoxic tumor biology and helps explain antiangiogenic/metabolic effects in some models.
10 NRF2 / antioxidant buffering ↓ NRF2 or ↓ redox buffering (model-dependent) ↔ / possible preservation of antioxidant tone (context-dependent) R-G May widen tumor redox vulnerability Direction is not uniform across all models; safer to treat this as contextual rather than universally core.
11 Ca²⁺ stress ↑ Ca²⁺ (context-dependent) ↔ P-R Supports organelle stress and apoptotic signaling Usually part of the broader mitochondrial/ER stress network rather than a stand-alone primary target.
12 Radiosensitization or Chemosensitization ↑ sensitivity to radiation or selected drugs Unclear G Adjunct leverage Preclinical evidence supports additive or sensitizing effects with irradiation and with some chemotherapy settings, but this is not yet clinically established.
13 Clinical Translation Constraint Poor solubility and limited systemic exposure constrain reproducibility Same formulation constraint G Delivery bottleneck Main barrier is not lack of mechanistic richness but drug-like exposure; translation currently depends heavily on formulation, derivatization, or topical/local use.

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)
JNK, c-Jun N-terminal kinase (JNK): Click to Expand ⟱
Source:
Type:
JNK acts synergistically with NF-κB, JAK/STAT, and other signaling molecules to exert a survival function. Janus signaling promotes cancer cell survival.
JNK, or c-Jun N-terminal kinase, is a member of the mitogen-activated protein kinase (MAPK) family. It plays a crucial role in various cellular processes, including cell proliferation, differentiation, and apoptosis (programmed cell death). JNK is activated in response to various stress signals, such as UV radiation, oxidative stress, and inflammatory cytokines.
JNK activation can promote apoptosis in cancer cells, acting as a tumor suppressor. However, in other contexts, it can promote cell survival and proliferation, contributing to tumor progression.

JNK is often unregulated in cancers, leading to increased cancer cell proliferation, survival, and resistance to apoptosis. This activation is typically associated with poor prognosis and aggressive tumor behavior.
Scientific Papers found: Click to Expand⟱
2758- BetA,    Betulinic Acid Attenuates Oxidative Stress in the Thymus Induced by Acute Exposure to T-2 Toxin via Regulation of the MAPK/Nrf2 Signaling Pathway
- in-vivo, Nor, NA
*ROS↓, protective effects and mechanisms of BA in blocking oxidative stress caused by acute exposure to T-2 toxin in the thymus of mice was studied.
*MDA↓, BA pretreatment reduced ROS production, decreased the MDA content, and increased the content of IgG in serum and the levels of SOD and GSH in the thymus.
*SOD↑,
*GSH↑,
*p‑p38↓, BA downregulated the phosphorylation of the p38, JNK, and ERK proteins, while it upregulated the expression of the Nrf2 and HO-1 proteins in thymus tissues.
*p‑JNK↓,
*p‑ERK↓,
*NRF2↑,
*HO-1↑,
*MAPK↓, suppressing the MAPK signaling pathway.
*heparanase↑, BA also showed protective activities against alcohol-induced liver damage and dexamethasone-induced spleen and thymus oxidative damage, and these protective effects were related to the antioxidant capacity of BA
*antiOx↑, BA Increased T-2 Toxin-Induced Thymus Antioxidative Capacity

2743- BetA,    Betulinic acid and the pharmacological effects of tumor suppression
- Review, Var, NA
ROS↑, BA improves the level of reactive oxygen species (ROS) production and alters the mitochondrial membrane potential gradient, followed by the release of cytochrome c (Cyt c), which causes the mitochondrial-mediated apoptosis of tumor cells via a caspas
MMP↓,
Cyt‑c↑,
Apoptosis↑,
TumCCA↑, BA can inhibit cancer cell growth and proliferation via cell cycle arrest
Sp1/3/4↓, BA, can inhibit the protein expression of Sp1, Sp2 and Sp4 through the microRNA (miR)-27a-ZBTB10-Sp1 axis
STAT3↓, BA can downregulate the activation of STAT3 through the upregulation of Src homology 2 domain-containing phosphatase 1 (SHP-1)
NF-kB↓, NF-κB can be inhibited by reducing the activation of inhibitor of NF-κB (IκBα) kinase (IKKβ) and phosphorylation of IκBα with BA
EMT↓, nvasion and metastasis of malignancies is prevented via epithelial-mesenchymal transition (EMT) and inhibition of topoisomerase I
TOP1↓,
MAPK↑, BA leads to the activation, via phosphorylation, of pro-apoptotic MAPK proteins, P38 and SAP/JNK, the formation of ROS and the upregulation of caspase
p38↑,
JNK↑,
Casp↑,
Bcl-2↓, BA downregulates Bcl-2 and upregulates the Bax gene in HeLa cell lines
BAX↑,
VEGF↓, BA can decrease the expression of VEGF via Sp proteins, thus having an antiangiogenic role
LAMs↓, BA suppresses the expression of lamin B1 in pancreatic cancer cells

2735- BetA,    Betulinic acid as apoptosis activator: Molecular mechanisms, mathematical modeling and chemical modifications
- Review, Var, NA
mt-Apoptosis↑, BA and analogues (BAs) have been known to exhibit potential antitumor action via provoking the mitochondrial pathway of apoptosis
Casp↑, cytosolic caspase activation
p38↑, inhibition of pro-apoptotic p38, MAPK and SAP/JNK kinases [8],
MAPK↓,
JNK↓,
VEGF↓, decreased expression of pro-apoptotic proteins and vascular endothelial growth factor (VEGF)
AIF↑, BA was recognized to trigger the process of apoptosis in human metastatic melanoma cells (Me-45) by releasing apoptosis inducing factor (AIF) and cytochrome c (Cyt C) through mitochondrial membrane
Cyt‑c↑,
ROS↑, BA also stimulates the increased production of reactive oxygen species (ROS) that is considered a stress factor involved in initiating mitochondrial membrane permeabilization
Ca+2↑, Moreover, the calcium overload and thereby ATP depletion are other stress factors causing enhanced inner mitochondrial membrane permeability via nonspecific pores formation
ATP↓,
NF-kB↓, BA has also known to be involved in activation of nuclear factor kappa B (NF-κB) that is responsible for apoptosis induction in variety of cancer cells
ATF3↓, According to Zhang et al. [14], BA stimulates apoptosis through the suppression of cyclic AMP-dependent transcription factor ATF-3 and NF-κB pathways and downregulation of p53 gene.
TOP1↓, inhibition of topoisomerases
VEGF↓, ecreased expression of vascular endothelial growth (VEGF) and the anti-apoptotic protein surviving in LNCaP prostate cancer cells.
survivin↓,
Sp1/3/4↓, selective proteasome-dependent targeted degradation of transcription factors specificity proteins (Sp1, Sp3, and Sp4), which generally regulate VEGF and survivin expression and highly over-expressed in tumor conditions
MMP↓, perturbed mitochondrial membrane potential
ChemoSen↑, BA can support as sensitizer in combination therapy to enhance the anticancer effects with minimum side effects.
selectivity↑, Normal human fibroblasts [41], peripheral blood lymphoblasts [41], melanocytes [32] and astrocytes [30] were found to be resistant to BA in vitro
BioAv↓, The clinical use of BA is seriously challenging due to high hydrophobicity which subsequently causes poor bioavailability
BioAv↑, A BA-loaded oil-in-water nanoemulsion was developed using phospholipase-catalyzed modified phosphatidylcholine as emulsifier in an ultrasonicator [120].
BioAv↑, Aqueous solubility of BA may also be increased through grinding with hydrophilic polymers (polyethylene glycol, polyvinylpyrrolidone, arabinogalactan) [121,122].
BioAv↑, Subsequently, for further improvement in biocompatibility, a technique of nanotube coating was employed with four biopolymers i.e. polyethylene glycol (PEG), chitosan, tween 20 and tween 80.
BioAv↑, Similarly, BA-coated silver nanoparticles displayed an improved antiproliferative and antimigratory activity, particularly against melanoma cells (A375: murine melanoma cells)


Showing Research Papers: 1 to 3 of 3

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 3

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

ATF3↓, 1,   ROS↑, 2,  

Mitochondria & Bioenergetics ⓘ

AIF↑, 1,   ATP↓, 1,   MMP↓, 2,  

Cell Death ⓘ

Apoptosis↑, 1,   mt-Apoptosis↑, 1,   BAX↑, 1,   Bcl-2↓, 1,   Casp↑, 2,   Cyt‑c↑, 2,   JNK↓, 1,   JNK↑, 1,   MAPK↓, 1,   MAPK↑, 1,   p38↑, 2,   survivin↓, 1,  

Kinase & Signal Transduction ⓘ

Sp1/3/4↓, 2,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

EMT↓, 1,   STAT3↓, 1,   TOP1↓, 2,  

Migration ⓘ

Ca+2↑, 1,   LAMs↓, 1,  

Angiogenesis & Vasculature ⓘ

VEGF↓, 3,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 2,  

Drug Metabolism & Resistance ⓘ

BioAv↓, 1,   BioAv↑, 4,   ChemoSen↑, 1,   selectivity↑, 1,  
Total Targets: 30

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   GSH↑, 1,   HO-1↑, 1,   MDA↓, 1,   NRF2↑, 1,   ROS↓, 1,   SOD↑, 1,  

Cell Death ⓘ

p‑JNK↓, 1,   MAPK↓, 1,   p‑p38↓, 1,  

Proliferation, Differentiation & Cell State ⓘ

p‑ERK↓, 1,  

Migration ⓘ

heparanase↑, 1,  
Total Targets: 12

Scientific Paper Hit Count for: JNK, c-Jun N-terminal kinase (JNK)
3 Betulinic acid
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#:168  State#:%  Dir#:%
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