| Features: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fisetin is a plant based flavonoid. Found in strawberries(160ug/g), apples, persimmons, onions, cucumbers, grapes. -Note half-life 3-4hrs - Oral BioAv low (40-50%) Pathways: - induce ROS production in cancer cells, but also known to reduce it. Also a claim Fisetin-Induced Reactive Oxygen Species Production Has No Effect on Apoptosis in RCC cells Also one claim (NAC 10-20mM levels) that NAC enhances ROS/apoptosis - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Ca+2↑">Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓ - Does not appear to lower antioxidants in cancer cells - Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑, - lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : IL-1β↓, TNF-α↓, IL-6↓, - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, IGF-1↓, uPA↓, VEGF↓, FAK↓, RhoA↓, NF-κB↓, TGF-β↓, ERK↓ - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, FAK↓, ERK↓, EMT↓, TOP1↓, TET1↓, - inhibits HIF-1α↓, cMyc↓, LDH↓, GRP78↑, - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, EGFR↓, - inhibits Cancer Stem Cells : CD133↓, β-catenin↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK↓, ERK↓, JNK, - Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells Fisetin — a naturally occurring plant flavonol and polyphenolic bioactive compound, chemically identified as 3,3′,4′,7-tetrahydroxyflavone. It is classified as a dietary flavonoid, experimental senotherapeutic and preclinical anticancer agent; Fisetin occurs in strawberries, apples, persimmons, grapes, onions and cucumbers, with strawberries providing one of the higher concentrations among commonly consumed foods. Its reported anticancer, neuroprotective and senolytic actions remain predominantly preclinical, and it is not an approved cancer or Alzheimer’s disease therapy. Primary mechanisms (ranked):
Bioavailability / PK relevance: Native fisetin has very low aqueous solubility, rapid intestinal and hepatic conjugation, and limited systemic exposure to unconjugated fisetin after conventional oral administration. Glucuronide, sulfate and methylated metabolites can predominate in circulation. Human PK evidence remains limited, although formulated preparations can produce substantially greater exposure than unformulated fisetin. Liposomal, nanoemulsion, phospholipid, cyclodextrin and other delivery systems are therefore mechanistically relevant but cannot be assumed equivalent to ordinary supplements. In-vitro vs systemic exposure relevance: Many anticancer experiments use approximately 10–100 µM fisetin, commonly 20–80 µM. These concentrations are substantially above the free-parent concentrations expected after ordinary dietary intake and may exceed those produced by conventional oral supplements. Direct translation of cytotoxic concentrations is therefore poor unless tumor accumulation, active metabolites or an exposure-enhancing formulation is demonstrated. Clinical evidence status: Cancer evidence is predominantly cell-culture and animal evidence. Early human studies are evaluating fisetin as a senolytic or supportive intervention in aging, frailty and cancer-survivor populations, but there is no completed randomized evidence establishing antitumor efficacy. Fisetin should be categorized as preclinical for direct cancer treatment and investigational for adjunct or senotherapeutic use. Safety / interaction constraints: Food-level exposure is generally regarded as low risk, and small short-term human studies have not identified a clear severe toxicity signal. However, high intermittent senolytic dosing and long-term supplemental dosing remain insufficiently characterized. Mechanistic concerns include antiplatelet or anticoagulant additivity, modulation of drug-metabolizing enzymes and transporters, topoisomerase inhibition, and context-dependent interference with oxidative or cytotoxic cancer treatments. Product purity and formulation-dependent exposure are additional uncertainties. Fisetin Mechanistic Ranking
P: 0–30 min R: 30 min–3 hr G: >3 hr Alzheimer’s disease relevance: Fisetin has significant but predominantly preclinical relevance to Alzheimer’s disease and related neurodegenerative disorders. Experimental studies report preservation of synaptic function and cognition, suppression of microglial inflammatory signaling, reduction of oxidative stress, promotion of autophagic clearance of phosphorylated tau, and modulation of amyloid-associated toxicity. Senescent-cell clearance provides an additional emerging rationale, but the relative contribution of senolysis versus direct neuroprotective signaling is unresolved. A pilot clinical study in mild cognitive impairment or mild Alzheimer’s disease is registered, but no completed trial currently establishes cognitive efficacy. Exposure constraint: Most neurological evidence comes from cell and animal models. Native fisetin’s poor solubility, rapid conjugation and uncertain free-brain exposure materially limit direct translation. CMS121 and other fisetin-derived compounds are being developed partly to improve potency, metabolic stability and neuroprotective exposure. Fisetin in Alzheimer’s Disease
P: 0–30 min R: 30 min–3 hr G: >3 hr |
| Source: |
| Type: |
| In all eukaryotic cells, intracellular Ca2+ levels are maintained at low resting concentrations (approximately 100 nM) by the activity of the major Ca2+ extrusion system, the plasma membrane Ca2+-ATPase (PMCA), which exchanges extracellular protons (H+) for cytosolic Ca2+. Indeed, sustained elevation of [Ca2+]C in the form of overload, saturating all Ca2+-dependent effectors, prolonged decrease in [Ca2+]ER, causing ER stress response, and high [Ca2+]M, inducing mitochondrial permeability transition (MPT), are considered to be pro-death factors. In cancer the Ca2+-handling toolkit undergoes profound remodelling (figure 1) to favour activation of Ca2+-dependent transcription factors, such as the nuclear factor of activated T cells (NFAT), c-Myc, c-Jun, c-Fos that promote hypertrophic growth via induction of the expression of the G1 and G1/S phase transition cyclins (D and E) and associated cyclin-dependent kinases (CDK4 and CDK2). Thus, cancer cells may evade apoptosis through decreasing calcium influx into the cytoplasm. This can be achieved by either downregulation of the expression of plasma membrane Ca2+-permeable ion channels or by reducing the effectiveness of the signalling pathways that activate these channels. Such protective measures would largely diminish the possibility of Ca2+ overload in response to pro-apoptotic stimuli, thereby impairing the effectiveness of mitochondrial and cytoplasmic apoptotic pathways. Voltage-Gated Calcium Channels (VGCCs): Overexpression of VGCCs has been associated with increased tumor growth and metastasis in various cancers, including breast and prostate cancer. Store-Operated Calcium Entry (SOCE): SOCE mechanisms, such as STIM1 and ORAI1, are often upregulated in cancer cells, contributing to enhanced cell survival and proliferation. High intracellular calcium levels are associated with increased cell proliferation and migration, leading to a poorer prognosis. Calcium signaling can also influence hormone receptor status, affecting treatment responses. Increased Ca²⁺ signaling is associated with advanced disease and metastasis. Patients with higher CaSR expression may have a worse prognosis due to enhanced tumor growth and resistance to apoptosis. -Ca2+ is an important regulator of the electric charge distribution of bio-membranes. |
| 2841- | FIS, | Fisetin, an Anti-Inflammatory Agent, Overcomes Radioresistance by Activating the PERK-ATF4-CHOP Axis in Liver Cancer |
| - | in-vitro, | Nor, | RAW264.7 | - | in-vitro, | Liver, | HepG2 | - | in-vitro, | Liver, | Hep3B | - | in-vitro, | Liver, | HUH7 |
| 2828- | FIS, | Fisetin, a Potent Anticancer Flavonol Exhibiting Cytotoxic Activity against Neoplastic Malignant Cells and Cancerous Conditions: A Scoping, Comprehensive Review |
| - | Review, | Var, | NA |
| 2827- | FIS, | The Potential Role of Fisetin, a Flavonoid in Cancer Prevention and Treatment |
| - | Review, | Var, | NA |
| 2825- | FIS, | Exploring the molecular targets of dietary flavonoid fisetin in cancer |
| - | Review, | Var, | NA |
| 2847- | FIS, | Fisetin-induced cell death, apoptosis, and antimigratory effects in cholangiocarcinoma cells |
| - | in-vitro, | CCA, | NA |
| 3372- | QC, | FIS, | KAE, | Anticancer Potential of Selected Flavonols: Fisetin, Kaempferol, and Quercetin on Head and Neck Cancers |
| - | Review, | HNSCC, | NA |
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#:78 Target#:38 State#:% Dir#:2
wNotes=0 sortOrder:rid,rpid