Rosmarinic acid

製品コードS3612 バッチS361201

印刷

化学情報

Chemical Structure Synonyms Rosemary acid Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C18H16O8
分子量 360.31 CAS No. 20283-92-5
Solubility (25°C)* 体外 DMSO 72 mg/mL (199.82 mM)
Ethanol 72 mg/mL (199.82 mM)
Water 24 mg/mL (66.6 mM)
* <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 Rosmarinic acid (RA, Rosemary acid) is a naturally occurring hydroxylated compound. It has the ability to block complement fixation, inhibit lipoxygenase and cyclooxygenase activity and inhibit the expression of CCL11 and CCR3 by suppressing the IKK-β activity in NF-κB activation signaling.
in vitro RA exerts a significant cytoprotective effect by scavenging intracellular ROS induced by UVB. RA also attenuates UVB-induced oxidative macromolecular damage, including protein carbonyl content, DNA strand breaks, and the level of 8-isoprostane. Furthermore, RA increases the expression and activity of superoxide dismutase, catalase, heme oxygenase-1, and their transcription factor Nrf2, which are decreased by UVB radiation. RA treatment recovers the protein expression levels of Nrf2 decreased by UVB exposure, and results in the translocation of Nrf2 protein from the cytosol into the nucleus. RA may protect cellular environments from free-radical damage and thereby, enhance the cellular antioxidant defense system[1]. Rosmarinic acid inhibits TNF-α-induced phosphorylation and degradation of IκB-α, as well as nuclear translocation of NF-κB heterodimer induced by TNF-α. It downregulates the expression of CCL11 and CCR3 via the inhibition of NF-κB activation signaling. Rosmarinic acid inhibits the Ca2+-dependent pathways of TCR-mediated signaling by inhibiting PLC-γ1 and Itk activities[2].
in vivo RA improves histological and serum markers of liver damage and significantly ameliorates oxidative/nitrosative stress and inflammatory response in liver tissue. Additionally, RA prevents transforming growth factor-beta1 (TGF-b1) and alpha-smooth muscle actin (a-SMA) expression, suggesting suppression of profibrotic response. RA significantly inhibits the CCl4-induced apoptosis, which is evident from decreased cleavage of caspase-3. The hepatoprotective activity of RA coincides with enhanced NF-E2-related factor 2 (Nrf2) and hemeoxygenase-1 (HO-1) expression. Rosmarinic acid acts as a natural inducer of endogenous cellular antioxidant defense via activation of the Nrf2/HO-1 pathway[3].

プロトコル(参考用のみ)

細胞アッセイ 細胞株 HaCaT cells
濃度 0.625, 1.25, 2.5, or 5 μM
反応時間 48 h
実験の流れ

Cells are treated with RA (0.625, 1.25, 2.5, or 5 μM) and exposed to UVB radiation 1 h later. They are then incubated at 37°C for 48 h. At this time, MTT is added to each well to obtain a total reaction volume of 200 μl. After 4 h incubation, the supernatant is removed by aspiration. The formazan crystals in each well are dissolved in dimethyl sulfoxide (DMSO; 150 μl), and the absorbance at 540 nm is measured on a scanning multi-well spectrophotometer.
動物実験 動物モデル Male BALB/cN mice
投薬量 10, 25 and 50 mg/kg
投与方法 by gavage

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：

Rosmarinic acid prevents refractory bacterial pneumonia through regulating Keap1/Nrf2-mediated autophagic pathway and mitochondrial oxidative stress [ Free Radic Biol Med, 2021, S0891-5849(21)00198-2] PubMed: 33812997

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。

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