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| 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):
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
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| It is widely accepted that there is a strong relationship between iron levels and cancer. .
Serum ferritin levels are elevated in many malignancies. Gynecological malignant tumor patients with high serum ferritin levels have significantly less survival time than patients with low or normal serum ferritin levels.
Ferritin is the primary intracellular iron-storage protein, with small amounts released into circulation. Biologically, ferritin buffers iron to prevent oxidative damage. Clinically, serum ferritin is a composite signal reflecting iron stores and inflammation.
Key point: In cancer, ferritin behaves more like an inflammatory biomarker than a pure iron marker.
In oncology, high ferritin usually reflects one or more of the following:
-IL-6–driven inflammation (acute-phase response)
-Iron sequestration (functional iron deficiency despite high ferritin)
-Tumor-associated macrophage activity
-Cell death and tissue breakdown
-Liver involvement (secondary contributor)
Thus, ferritin integrates immune activation + metabolic stress.
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| 2756- | BetA, | Betulinic acid inhibits growth of hepatoma cells through activating the NCOA4-mediated ferritinophagy pathway |
| - | in-vitro, | HCC, | HUH7 | - | in-vitro, | HCC, | H1299 |
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
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