| Features: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Artemisinin — a plant-derived sesquiterpene lactone endoperoxide (from Artemisia annua) best known as the parent scaffold for artemisinin-class antimalarials and widely investigated as a tumor-selective redox/iron-reactive cytotoxic agent. It is a small-molecule natural product (drug-like phytochemical) whose major clinical derivatives include artesunate (water-soluble), artemether/arteether (lipophilic), and the active metabolite dihydroartemisinin (DHA). In oncology literature the abbreviation set commonly includes ART (artemisinin), AS (artesunate), and DHA (dihydroartemisinin); many mechanistic claims are derivative-specific and exposure/iron-context dependent. Primary mechanisms (ranked):
Bioavailability / PK relevance: Oral artemisinin has variable and generally limited systemic exposure with a short half-life on the order of hours; many anticancer in-vitro concentrations exceed typical achievable free-plasma levels without formulation strategies. Artesunate is rapidly converted to DHA; in an FDA label dataset (IV artesunate for severe malaria), artesunate has a very short half-life (~0.3 h) and DHA ~1.3 h, emphasizing exposure-time constraints and the need to interpret “ART/AS/DHA” PK separately. In-vitro vs systemic exposure relevance: Many reported anticancer effects are driven by oxidative stress at micromolar in-vitro conditions and may be difficult to reproduce systemically without targeted delivery, local administration, or combination strategies that increase intratumoral iron/ROS burden (context-dependent). Clinical evidence status: Cancer use remains investigational (preclinical-dominant with small/early human studies). Multiple registered clinical studies have evaluated artesunate/derivatives in oncology settings (e.g., phase I solid tumor IV artesunate; small/phase II-style neoadjuvant/adjunct trials), but there is no major regulatory approval for cancer indications; artesunate is approved/used clinically for severe malaria. Artemisinin a compound in a Chinese herb that may inhibit tumor growth and metastasis Artemisinin (antimalarial drugs)Artesunic acid (Artesunate) , Dihydroartemisinin (DHA), artesunate, arteether, and artemether, SM735, SM905, SM933, SM934, and SM1044 The induction of OS in tumor cells via the production of ROS is the key mechanism of ART against cancer. combination of ART and Nrf2 inhibitors to promote ferroptosis may have more efficient anticancer effects without damaging normal cells. Summary: - One of the strongest tumor-selective pro-oxidants, mechanism related with iron. Synergizes with iron-rich tumors -ROS seems to affect both cancer and normal cells - Delivery of artemisinin in conjugate form with transferrin or holotransferrin (serum iron transport proteins) have been shown to greatly improve its effectiveness. - Potential direct inhibitor of STAT3 - Artemisinin synergized with the glycolysis inhibitor 2DG (2-deoxy- D -glucose) ART Combined Therapy: Allicin, Resveratrol, Curcumin, VitC (but not orally at same time), Butyrate , 2-DG, Aminolevulinic AcidG -possible problems with liver toxicity?? -Artesunate (ART), an artemisinin compound, is known for lysosomal degradation of ferritin, inducing oxidative stress and promoting cancer cell death. Pathways: - Increasing reactive oxygen species (ROS) production. This oxidative stress can cause the loss of mitochondrial membrane potential, leading to cytochrome c release and subsequent activation of caspase cascades. - Downregulate HIF-1α - By impairing glycolysis, artemisinin might force cells to rely on oxidative phosphorylation (OXPHOS) for energy production. - Inhibit GLUT1 (glucose uptake), HK2, PKM2 (slow the glycolytic flux, thereby reducing the energy supply) - Minimal NRF2 activation -Artemisinin has a half-life of about 3-4 hours, Artesunate 40 minutes and Artemether 12 hours. Peak plasma levels occur in 1-2 hour. BioAv 21%, poor-good solubility. Artesunate (ART), a water soluble derivative of artemisinin. concentrations higher in blood, colon, liver, kidney (highly perfused organs) Pathways: - induce ROS production, iron dependent (affect both cancer and normal cells) - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓, - Both Lowers (and raises) AntiOxidant defense in Cancer Cells: NRF2↓(contary), SOD↓, GSH↓ Catalase↓ GPx↓ - Small evidence of Raising AntiOxidant defense in Normal Cells: ROS↓(contary), NRF2↑, SOD↑(contary), GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : NLRP3↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, TIMP2, IGF-1↓, uPA↓, VEGF↓, ROCK1↓, NF-κB↓, TGF-β↓, ERK↓ - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, ERK↓, EMT↓, TOP1↓, - inhibits glycolysis /Warburg Effect and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, ECAR↓, GRP78↑, GlucoseCon↓ - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, EGFR↓, Integrins↓, - some small indication of inhibiting Cancer Stem Cells : CSC↓, Hh↓, β-catenin↓, sox2↓, OCT4↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK, ERK↓, JNK, - Synergies: chemo-sensitization, RadioSensitizer, Others(review target notes), - Selectivity: Cancer Cells vs Normal Cells Often synergistic with ROS-based chemo Artemisinin-class (ART/AS/DHA) mechanisms relevant to cancer biology
TSF legend: P: 0–30 min R: 30 min–3 hr G: >3 hr |
| 4438- | AgNPs, | ART/DHA, | Biogenic synthesis of AgNPs using Artemisia oliveriana extract and their biological activities for an effective treatment of lung cancer |
| - | in-vitro, | Lung, | A549 |
| 4552- | AgNPs, | ART/DHA, | Green synthesis of silver nanoparticles using Artemisia turcomanica leaf extract and the study of anti-cancer effect and apoptosis induction on gastric cancer cell line (AGS) |
| - | in-vitro, | GC, | AGS |
| 3388- | ART/DHA, | Keap1 Cystenine 151 as a Potential Target for Artemisitene-Induced Nrf2 Activation |
| - | in-vitro, | Lung, | A549 | - | in-vitro, | Nor, | GP-293 | - | in-vitro, | BC, | MDA-MB-231 |
| 3666- | ART/DHA, | Artemisinin Attenuates Amyloid-Induced Brain Inflammation and Memory Impairments by Modulating TLR4/NF-κB Signaling |
| - | NA, | AD, | NA |
| 3665- | ART/DHA, | Artemisinin B Improves Learning and Memory Impairment in AD Dementia Mice by Suppressing Neuroinflammation |
| - | Review, | AD, | NA |
| 3396- | ART/DHA, | Progress on the study of the anticancer effects of artesunate |
| - | Review, | Var, | NA |
| 3395- | ART/DHA, | Artesunate Induces Ferroptosis in Hepatic Stellate Cells and Alleviates Liver Fibrosis via the ROCK1/ATF3 Axis |
| - | in-vitro, | NA, | HSC-T6 |
| 3394- | ART/DHA, | Anticancer activities and mechanisms of heat-clearing and detoxicating traditional Chinese herbal medicine |
| 3393- | ART/DHA, | Artemisinin-derived artemisitene blocks ROS-mediated NLRP3 inflammasome and alleviates ulcerative colitis |
| - | in-vivo, | Col, | NA |
| 3392- | ART/DHA, | Artemisinin inhibits inflammatory response via regulating NF-κB and MAPK signaling pathways |
| - | in-vitro, | Nor, | Hep3B | - | in-vivo, | NA, | NA |
| 3391- | ART/DHA, | Antitumor Activity of Artemisinin and Its Derivatives: From a Well-Known Antimalarial Agent to a Potential Anticancer Drug |
| - | Review, | Var, | NA |
| 3390- | ART/DHA, | Ferroptosis: The Silver Lining of Cancer Therapy |
| 3389- | ART/DHA, | Emerging mechanisms and applications of ferroptosis in the treatment of resistant cancers |
| - | Review, | Var, | NA |
| 4278- | ART/DHA, | Artemisinin Ameliorates the Neurotoxic Effect of 3-Nitropropionic Acid: A Possible Involvement of the ERK/BDNF/Nrf2/HO-1 Signaling Pathway |
| - | in-vivo, | NA, | NA |
| 3387- | ART/DHA, | Ferroptosis: A New Research Direction of Artemisinin and Its Derivatives in Anti-Cancer Treatment |
| - | Review, | Var, | NA |
| 3386- | ART/DHA, | Effects of Caffeine-Artemisinin Combination on Liver Function and Oxidative Stress in Selected Organs in 7,12-Dimethylbenzanthracene-Treated Rats |
| - | in-vivo, | Nor, | NA |
| 3385- | ART/DHA, | Interaction of artemisinin protects the activity of antioxidant enzyme catalase: A biophysical study |
| - | Study, | NA, | NA |
| 3384- | ART/DHA, | Dihydroartemisinin triggers ferroptosis in primary liver cancer cells by promoting and unfolded protein response‑induced upregulation of CHAC1 expression |
| - | in-vitro, | Liver, | Hep3B | - | in-vitro, | Liver, | HUH7 | - | in-vitro, | Liver, | HepG2 |
| 3383- | ART/DHA, | Dihydroartemisinin: A Potential Natural Anticancer Drug |
| - | Review, | Var, | NA |
| 3382- | ART/DHA, | Repurposing Artemisinin and its Derivatives as Anticancer Drugs: A Chance or Challenge? |
| - | Review, | Var, | NA |