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    CAS No. 477-57-6 Price
    Catalog No.CFN98722Purity>=98%
    Molecular Weight622.8 Type of CompoundAlkaloids
    FormulaC38H42N2O6Physical DescriptionPowder
    Download     COA    MSDSSimilar structuralComparison (Web)
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    According to end customer requirements, ChemFaces provide solvent format. This solvent format of product intended use: Signaling Inhibitors, Biological activities or Pharmacological activities.
    Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry
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  • Biological Activity
    Description: Isotetrandrine is a small molecule inhibitor, on various aspects of LPS-induced inflammation in vitro and in vivo. It dose-dependently suppresses the severity of LPS-induced ALI by inactivation of MAPK and NF-κB, which may involve the inhibition of tissue oxidative injury and pulmonary inflammatory process.
    Targets: IL Receptor | NF-kB | MAPK | Nrf2 | HO-1 | JNK
    In vitro:
    J Surg Res. 2014 Apr;187(2):596-604.
    Isotetrandrine protects against lipopolysaccharide-induced acute lung injury by suppression of mitogen-activated protein kinase and nuclear factor-kappa B.[Pubmed: 24331940]
    Mitogen-activated protein kinases (MAPKs) and nuclear factor-kappa B (NF-κB) signaling pathways are pleiotropic regulator of many genes involved in lipopolysaccharide (LPS)-induced acute lung injury (ALI). The present study aimed to reveal the protective effect of Isotetrandrine (ITD), a small molecule inhibitor, on various aspects of LPS-induced inflammation in vitro and in vivo.
    In vitro, RAW 264.7 cells were pretreated with different dose of Isotetrandrine 1 h before treatment with 1 mg/L of LPS. In vivo, to induce ALI, male BALB/c mice were injected intranasally with LPS and treated with Isotetrandrine (20 and 40 mg/kg) 1 h before LPS. In vitro, the cytokine levels of tumor necrosis factor-α, interleukin (IL)-1β, and IL-6 in supernatant were reduced by Isotetrandrine. Meanwhile, in vivo, pulmonary inflammatory cell infiltration, myeloperoxidase activity, total cells, neutrophils, macrophages, along with the levels of tumor necrosis factor-α, IL-1β, and IL-6 in bronchoalveolar lavage fluid were dose-dependently attenuated by Isotetrandrine. Furthermore, our data showed that Isotetrandrine significantly inhibited the activation of MAPK and NF-κB, which are induced by LPS in ALI model.
    These results suggested that Isotetrandrine dose-dependently suppressed the severity of LPS-induced ALI by inactivation of MAPK and NF-κB, which may involve the inhibition of tissue oxidative injury and pulmonary inflammatory process.
    Isotetrandrine Description
    Source: The roots of Stephania tetrandra S.Moore
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

    After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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    Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

    Cell. 2018 Jan 11;172(1-2):249-261.e12.
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    PMID: 29328914

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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 1.6057 mL 8.0283 mL 16.0565 mL 32.113 mL 40.1413 mL
    5 mM 0.3211 mL 1.6057 mL 3.2113 mL 6.4226 mL 8.0283 mL
    10 mM 0.1606 mL 0.8028 mL 1.6057 mL 3.2113 mL 4.0141 mL
    50 mM 0.0321 mL 0.1606 mL 0.3211 mL 0.6423 mL 0.8028 mL
    100 mM 0.0161 mL 0.0803 mL 0.1606 mL 0.3211 mL 0.4014 mL
    * Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
    Kinase Assay:
    Exp Biol Med (Maywood). 2016 Aug;241(14):1568-76.
    Isotetrandrine ameliorates tert-butyl hydroperoxide-induced oxidative stress through upregulation of heme oxygenase-1 expression.[Pubmed: 27190261]
    1R, 1'S-Isotetrandrine, a naturally occurring plant alkaloid found in Mahonia of Berberidaceae, possesses anti-inflammatory, antibacterial, and antiviral properties, but the antioxidative activity and mechanism action remain unclear.
    In this study, we demonstrated the antioxidative effect and mechanism of 1R, 1'S-Isotetrandrine against tert-butyl hydroperoxide-induced oxidative damage in HepG2 cells. We found that 1R, 1'S-Isotetrandrine suppressed cytotoxicity, reactive oxygen species generation, and glutathione depletion. Additionally, our study confirmed that 1R, 1'S-Isotetrandrine significantly increased the antioxidant enzyme heme oxygenase-1 expression and nuclear translocation of factor-erythroid 2 p45-related factor 2 (Nrf2). Specifically, the nuclear translocation of Nrf2 induced by 1R, 1'S-Isotetrandrine was associated with Nrf2 negative regulatory protein Keap1 inactivation and phosphorylation of both extracellular signal-regulated protein kinase and c-Jun NH2-terminal kinase. Preincubation with thiol-reducing agents reduced 1R, 1'S-Isotetrandrine-induced heme oxygenase-1 expression, and treatment with either extracellular signal-regulated protein kinase or c-Jun NH2-terminal kinase inhibitors attenuated the levels of 1R, 1'S-Isotetrandrine-induced Nrf2 activation and heme oxygenase-1 expression. Furthermore, the cytoprotective effect of 1R, 1'S-Isotetrandrine was abolished by heme oxygenase-1, extracellular signal-regulated protein kinase, and c-Jun NH2-terminal kinase inhibitors.
    These results indicated that the 1R, 1'S-Isotetrandrine ameliorated tert-butyl hydroperoxide-induced oxidative damage through upregulation of heme oxygenase-1 expression by the dissociation of Nrf2 from Nrf2-Keap1 complex via extracellular signal-regulated protein kinase and c-Jun NH2-terminal kinase activation and Keap1 inactivation.