Betulinic acid / RenoP 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)
RenoP, K,Renoprotection: Click to Expand ⟱
Source:
Type:
Protects kidneys
-Same as nephroprotective
Opposite is : Nephrotoxicity is toxicity in the kidneys
Scientific Papers found: Click to Expand⟱
2760- BetA,    A Review on Preparation of Betulinic Acid and Its Biological Activities
- Review, Var, NA - Review, Stroke, NA
AntiTum↑, BA is considered a future promising antitumor compound
Cyt‑c↑, BA stimulated mitochondria to release cytochrome c and Smac and cause further apoptosis reactions
Smad1↑,
Sepsis↓, Administration of 10 and 30 mg/kg of BA significantly improved survival against sepsis and attenuated lung injury.
NF-kB↓, BA inhibited nuclear factor-kappa B (NF-κB) expression in the lung and decreased levels of cytokine, intercellular adhesion molecule-1 (ICAM-1), monocyte chemoattractant protein-1 (MCP-1) and matrix metalloproteinase-9 (MMP-9)
ICAM-1↓,
MCP1↓,
MMP9↓,
COX2↓, In hPBMCs, BA suppressed cyclooxygenase-2 (COX-2) expression and prostaglandin E2 (PEG2) production by inhibiting extracellular regulated kinase (ERK) and Akt phosphorylation and thereby modulated the NF-κB signaling pathway
PGE2↓,
ERK↓,
p‑Akt↓,
*ROS↓, BA significantly decreased the mortality of mice against endotoxin shock and inhibited the production of PEG2 in two of the most susceptible organs, lungs and livers [80]. Moreover, BA reduced reactive oxygen species (ROS) formation
*LDH↓, and the release of lactate dehydrogenase
*hepatoP↑, hepatoprotective effect of BA from Tecomella undulata.
*SOD↑, Pretreatment of BA prevented the depletion of hepatic antioxidants superoxide dismutase (SOD) and catalase (CAT), reduced glutathione (GSH) and ascorbic acid (AA) and decreased the CCl4-induced LPO level
*Catalase↑,
*GSH↑,
*AST↓, A also attenuated the elevation of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) plasma level,
*ALAT↓,
*RenoP↑, BA also exhibits renal-protective effects. Renal fibrosis is an end-stage renal disease symptom that develops from chronic kidney disease (CKD).
*ROS↓, BA protected against this ischemia-reperfusion injury in a mice model by enhancing blood flow and reducing oxidative stress and nitrosative stress
*α-SMA↓, Moreover, BA reduced the expression of α-smooth muscle actin (α-SMA) and collagen-I

2725- BetA,    Betulinic acid protects against renal damage by attenuation of oxidative stress and inflammation via Nrf2 signaling pathway in T-2 toxin-induced mice
- in-vivo, Nor, NA
*RenoP↑, BA pretreatment alleviated excessive glomerular hemorrhage and inflammatory cell infiltration in kidneys caused by T-2 toxin.
*SOD?, Moreover, pretreatment with BA mitigated T-2 toxin-induced renal oxidative damage by up-regulating the activities of SOD and CAT, and the content of GSH, while down-regulating the accumulation of ROS and MDA
*Catalase↑,
*GSH↑,
*ROS↓,
*MDA↓,
*IL1β↓, decreasing the mRNA expression of IL-1β, TNF-α and IL-10, and increasing IL-6 mRNA expression
*TNF-α↓,
*IL10↓,
*IL6↑,
*NRF2↑, pretreatment with BA could activate Nrf2 signaling pathway.


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:


Cell Death ⓘ

p‑Akt↓, 1,   Cyt‑c↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

ERK↓, 1,  

Migration ⓘ

MMP9↓, 1,   Smad1↑, 1,  

Immune & Inflammatory Signaling ⓘ

COX2↓, 1,   ICAM-1↓, 1,   MCP1↓, 1,   NF-kB↓, 1,   PGE2↓, 1,  

Functional Outcomes ⓘ

AntiTum↑, 1,  

Infection & Microbiome ⓘ

Sepsis↓, 1,  
Total Targets: 12

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

Catalase↑, 2,   GSH↑, 2,   MDA↓, 1,   NRF2↑, 1,   ROS↓, 3,   SOD?, 1,   SOD↑, 1,  

Core Metabolism/Glycolysis ⓘ

ALAT↓, 1,   LDH↓, 1,  

Migration ⓘ

α-SMA↓, 1,  

Immune & Inflammatory Signaling ⓘ

IL10↓, 1,   IL1β↓, 1,   IL6↑, 1,   TNF-α↓, 1,  

Clinical Biomarkers ⓘ

ALAT↓, 1,   AST↓, 1,   IL6↑, 1,   LDH↓, 1,  

Functional Outcomes ⓘ

hepatoP↑, 1,   RenoP↑, 2,  
Total Targets: 20

Scientific Paper Hit Count for: RenoP, K,Renoprotection
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#:1175  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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