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Myricetin

CAS No. : 529-44-2

產品活性：Myricetin is a common plant-derived flavonoid with a wide range of activities including strong anti-oxidant, anticancer, antidiabetic and anti-inflammatory activities.

研究領域：Apoptosis  |  Autophagy  |  Metabolic Enzyme/Protease

作用靶點：Apoptosis  |  Autophagy  |  Endogenous Metabolite

結構分類：黃酮類  |  黃酮醇

來源：植物  |  楊梅科  |  楊梅

In Vitro: Myricetin exhibits the scavenging activity towards a number of radicals and ions. It displays poor activity (IC₅₀ value=1.4 mg/mL) in a superoxide dismutase (SOD)-like activity assay. It prevents cancer cell death via apoptosis via regulation of PI3K/Akt and MAPK signalling pathways. Myricetin exhibits antiphotoaging effects by quenching causative free radicals in the skin. Myricetin is able to suppress UVB-induced COX-2 expression in mouse skin epidermal JB6 P+ cells. It inhibits UVB-induced initiation of activator protein-1 and NF-κβ, as well as Fyn kinase activity. Myricetin inhibits viability of SKOV3 ovarian cancer cells in a dose-dependent manner. It induces DNA DSBs and ER stress, which leads to apoptosis in SKOV3 cells. Myricetin inhibits human Hsp70 by more than 80% with IC₅₀ values of 83, 11 and 12 μM, respectively.

In Vivo: Treatment of orthotopic pancreatic tumors with myricetin results in tumor regression and decreases metastatic spread. Exposure to 150 μM myricetin causes 14%, 26%, 5% and 49% inhibition of rabbit platelet aggregation, induced by ADP, arachidonic acid, collagen and PAF, respectively.

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