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Withaferin A is a steroidal lactone derived from the medicinal plant Withania somnifera (commonly known as Ashwagandha). The main active constituents of Ashwagandha leaves are alkaloids and steroidal lactones (commonly known as Withanolides). -The main constituents of ashwagandha are withanolides such as withaferin A, alkaloids, steroidal lactones, tropine, and cuscohygrine. Ashwagandha is an herb that may reduce stress, anxiety, and insomnia. *-Ashwagandha is often characterized as an antioxidant. -Some studies suggest that while ashwagandha may protect normal cells from oxidative damage, it can simultaneously stress cancer cells by tipping their redox balance toward cytotoxicity. Pathways: -Induction of Apoptosis and ROS Generation -Hsp90 Inhibition and Proteasomal Degradation Cell culture studies vary widely, typically ranging from low micromolar (e.g., 1–10 µM). In animal models (commonly mice), Withaferin A has been administered in doses ranging from approximately 2 to 10 mg/kg body weight. - General wellness, Ashwagandha supplements are sometimes taken in doses ranging from 300 mg to 600 mg of an extract (often standardized to contain a certain percentage of withanolides) once or twice daily. - 400mg of WS extract was given 3X/day to schizophrenia patients. report#2001. - Ashwagandha Pure 400mg/capsule is available from mcsformulas.com. -Note half-life 4-6 hrs?. BioAv Pathways: - well-recognized for promoting ROS in cancer cells, while no effect(or reduction) on normal cells. - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓, Prx, - Confusing results about Lowering AntiOxidant defense in Cancer Cells: NRF2↓, TrxR↓**, SOD↓, GSH↓ Catalase↓ HO1↓ GPx↓ - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, TIMP2, uPA↓, VEGF↓, ROCK1↓, NF-κB↓, CXCR4↓, SDF1↓, TGF-β↓, α-SMA↓, ERK↓ - reactivate genes thereby inhibiting cancer cell growth : HDAC↓(combined with sulfor), DNMT1↓, DNMT3A↓, P53↑, HSP↓, Sp proteins↓, TET↑ - cause Cell cycle arrest : TumCCA↑, cyclin E↓, CDK2↓, CDK4↓, - 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↓, OXPHOS↓, GRP78↑, GlucoseCon↓ - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, PDGF↓, EGFR↓, Integrins↓, - inhibits Cancer Stem Cells : CSC↓, β-catenin↓, sox2↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK, α↓, ERK↓, JNK, - Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells |
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Biological process in which epithelial cells lose their cell polarity and cell-cell adhesion properties and gain mesenchymal traits, such as increased motility and invasiveness. This process is pivotal during embryogenesis and wound healing. Hh signaling pathway is able to regulate the EMT. Snail, E-cadherin and N-cadherin, key components of EMT; EMT-related factors, E-cadherin, N-cadherin, vimentin; The hallmark of EMT is the upregulation of N-cadherin followed by the downregulation of E-cadherin. EMT is regulated by various signaling pathways, including TGF-β, Wnt, Notch, and Hedgehog pathways. Transcription factors such as Snail, Slug, Twist, and ZEB play critical roles in repressing epithelial markers (like E-cadherin) and promoting mesenchymal markers (like N-cadherin and vimentin). EMT is associated with increased tumor aggressiveness, enhanced migratory and invasive capabilities, and resistance to apoptosis. |
3155- | Ash,  |   | Overview of the anticancer activity of withaferin A, an active constituent of the Indian ginseng Withania somnifera |
- | Review, | Var, | NA |
3156- | Ash,  |   | Withaferin A: From ayurvedic folk medicine to preclinical anti-cancer drug |
- | Review, | Var, | NA |
3160- | Ash,  |   | Withaferin A: A Pleiotropic Anticancer Agent from the Indian Medicinal Plant Withania somnifera (L.) Dunal |
- | Review, | Var, | NA |
3166- | Ash,  |   | Exploring the Multifaceted Therapeutic Potential of Withaferin A and Its Derivatives |
- | Review, | Var, | NA |
3172- | Ash,  |   | Implications of Withaferin A for the metastatic potential and drug resistance in hepatocellular carcinoma cells via Nrf2-mediated EMT and ferroptosis |
- | in-vitro, | HCC, | HepG2 | - | in-vitro, | Nor, | HL7702 |
1181- | Ash,  |   | Withaferin A inhibits Epithelial to Mesenchymal Transition in Non-Small Cell Lung Cancer Cells |
- | in-vitro, | Lung, | A549 | - | in-vitro, | Lung, | H1299 |
1358- | Ash,  |   | Withaferin A: A Dietary Supplement with Promising Potential as an Anti-Tumor Therapeutic for Cancer Treatment - Pharmacology and Mechanisms |
- | Review, | Var, | NA |
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