(-)Epicatechin

製品コードS4723 バッチS472303

印刷

化学情報

Synonyms

L-Epicatechin, (-)-Epicatechol

Storage
(From the date of receipt)

3 years -20°C powder (seal)

化学式

C₁₅H₁₄O₆

分子量

290.27

CAS No.

490-46-0

Solubility (25°C)*

体外

DMSO

58 mg/mL (199.81 mM)

Water

Insoluble

Ethanol

Insoluble

体内（毎回新しく調製した物を用意してください）

Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	2.9mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 58 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil	0.48mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 9.6 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

溶剤液（一定の濃度）を調合する

生物活性

製品説明	(−)Epicatechin (L-Epicatechin, (-)-Epicatechol) is a flavonoid present in cocoa, green tea and red wine. It is a strong antioxidant, has insulin mimic action and improves heart health.
in vitro	(-)-Epicatechin stimulates mitochondrial respiration and oxygen consumption in Panc-1 cells. Human normal fibroblasts are not affected. (-)-Epicatechin sensitizes Panc-1, U87, and MIA PaCa-2 cells with an average radiation enhancement factor (REF) of 1.7, 1.5, and 1.2, respectively. (-)-Epicatechin does not sensitize normal fibroblast cells to ionizing radiation with a REF of 0.9, suggesting cancer cell selectivity. (-)-Epicatechin enhances Chk2 phosphorylation and p21 induction when combined with radiation in cancer, but not normal cells^[2].
in vivo	Aging has deleterious effects on modulators of muscle growth/differentiation, the consumption of modest amounts of the flavanol (−)-epicatechin can partially reverse these changes. In mice, myostatin and senescence-associated β-galactosidase levels increase with aging, while those of follistatin and Myf5 decrease. (−)-Epicatechin decreases myostatin and β-galactosidase and increases levels of markers of muscle growth. In humans, myostatin and β-galactosidase increase with aging while follistatin, MyoD and myogenin decrease. Treatment for 7 days with (−)-epicatechin increases hand grip strength and the ratio of plasma follistatin/myostatin^[1]. Low-dose (−)-epicatechin treatment resulted in significant increases in skeletal muscle capillarity, mitochondrial biogenesis, and oxidative enzyme activity, which corresponded to lower muscle fatigue and higher endurance capacity when compared to the placebo group. (−)-epicatechin may potentially regulate the protein expression between angiogenic and antiangiogenic factors, such as VEGF-A and TSP-1, respectively^[3].

プロトコル(参考用のみ)

細胞アッセイ	細胞株	Panc-1 cells
	濃度	0-200 μM
	反応時間	1 h
	実験の流れ	Panc-1 cells are seeded into T-150 flasks and on the next day, cells are treated with different concentrations of (-)-epicatechin for 1 h, then harvested and solubilized in 10 mM HEPES (pH 7.4), 40 mM KCl, 1%Tween-20, 1 µM oligomycin, 1 mM PMSF,10 mM KF, 2 mM EGTA, and 1 mM Na3VO4. COX activity is measured in the presence of 20 mM ascorbate and 200 µM substrate cytochrome c from cow heart.
動物実験	動物モデル	C57BL/6 male mice
	投薬量	1 mg/kg BID
	投与方法	by gavage

参考

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

(-)-Epicatechin acts as a potent agonist of the membrane androgen receptor, ZIP9 (SLC39A9), to promote apoptosis of breast and prostate cancer cells [ J Steroid Biochem Mol Biol, 2021, 211:105906]	PubMed: 33989703
Loss of N-Glycanase 1 Alters Transcriptional and Translational Regulation in K562 Cell Lines [ G3 (Bethesda), 2020, 4;10(5):1585-1597]	PubMed: 32265286

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

各々の製品のための特定の保管と取扱い情報は、製品データシートの上で示されます。大部分のSelleck製品は、推薦された状況の下で安定です。製品は、推薦された保管温度と異なる温度で、時々出荷されます。長期の保管のために必要とされてそれと異なる温度で、多くの製品は、短期もので安定です。品質を維持するが、夜通しの積荷のために最も経済的な貯蔵状況を用いてあなたの送料を保存する状況の下に、製品が出荷されることを、我々は確実とします。製品の受領と同時に、製品データシートの上で貯蔵推薦に従ってください。