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Forsythoside B

Forsythoside B 是传统中药植物独一味叶子中分离的一种苯乙醇苷。它可抑制 TNF-alpha，IL-6，IκB， 调节 NF-κB。它抑制炎症反应，具有抗氧化和神经保护作用。

CAS号

81525-13-5

分子式

C34H44O19

主要靶点

NF-κB|TNF

仅限科研使用

Cat No : CM06681

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Synonyms

连翘酯苷 B|连翘脂苷B

验证数据展示

  • CAS No.: 81525-13-5

    Forsythoside B
    CAS#: 81525-13-5

产品信息

Forsythoside B binds to LPS and reduces the biological activity of serum LPS, and inhibits NF-κB activation. Forsythoside B inhibits the inflammatory response and has antioxidant properties. Potent neuroprotective effects with a favorable therapeutic time-window, reduce of cerebral ischemia and reperfusion injury degree, attenuating blood-brain barrier (BBB) breakdown; Rescued cardiac function from I/R injury. Forsythoside B has antisepsis effect, is mediated by decreasing local and systemic levels of a wide spectrum of inflammatory mediators.

CAS号 81525-13-5
分子式 C34H44O19
主要靶点 NF-κB|TNF
主要通路 NF-κB信号通路|凋亡
分子量 756.71
纯度 96.52%， 此纯度可做参考，具体纯度与批次有关系，可咨询客服
储存条件 Powder: -20°C for 3 years | In solvent: -80°C for 1 year
别名 连翘酯苷 B|连翘脂苷B

体内活性

Intravenous injection of forsythoside B alone or plus imipenem reduces serum levels of TNF-α, IL-6, HMGB1, triggering receptor expressed on myeloid cells (TREM-1) and endotoxin, while the serum level of IL-10 is up-regulated and myeloperoxidase (MPO) in lung, liver and small intestine is reduced[1]. Forsythoside B at doses higher than 8 mg/kg produces a significant neuroprotective potential in cerebral ischemia and reperfusion rats. Forsythoside B (20 mg/kg) demonstrates significant neuroprotective activity even after delayed administration at 1 h, 3 h and 5 h after cerebral ischemia and reperfusion. Forsythoside B 20 mg/kg attenuates histopathological damage as demonstrated by smaller brain infarct size and brain edema, decreased cerebral Evans blue extravasation and myeloperoxidase activity, inhibited cerebral phosphor-IκB-α and NF-κB expression[2]. Forsythoside B shows a significant recovery in myocardial function with improvement of LVSP and +/-dp/dt(max). The myocardial infarct volume, serum levels of Tn-T, TNF-alpha and IL-6, content of MDA and MPO activity in myocardial tissue are all reduced, protein expression of HMGB1, phosphor-I kappaB-alpha and phosphor-NF-kappaB are down-regulated, while attenuate the decrease of SOD and GPx activities[3]. Forsythoside B alone or plus Imipenem reduced CLP-induced lethality in rats.

体外活性

Forsythoside B down-regulates the levels of TNF-α, IL-6 and high-mobility group-box 1 protein (HMGB1) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells, inhibits the IκB kinase (IKK) pathway and modulated nuclear factor (NF)- κB in a concentration-dependently manner[1].

溶解度

DMSO:132.2 mM

细胞实验

Forsythoside B is dissolved in sterile saline solution and added to the medium at various concentrations (from 0.1 to 10 μM) and incubated with LPS stimulated RAW264.7 cells. Cell-free supernatants are collected after Forsythoside B treatment for 24 h. Cell viability is assessed by measuring lactate dehydrogenase (LDH) in the medium[1].

参考文献

1.Jiang WL, et al. Forsythoside B protects against experimental sepsis by modulating inflammatory factors. Phytother Res. 2012 Jul;26(7):981-7.
2.Jiang WL, et al. Neuroprotective efficacy and therapeutic window of Forsythoside B: in a rat model of cerebral ischemia and reperfusion injury. Eur J Pharmacol. 2010 Aug 25;640(1-3):75-81.
3.Jiang WL, et al. Cardioprotection with forsythoside B in rat myocardial ischemia-reperfusion injury: relation to inflammation response. Phytomedicine. 2010 Jul;17(8-9):635-9.

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