|Source:||The roots of Sophora flavescens Ait.|
|Biological Activity or Inhibitors:||1. The application of the tested Sophoraflavanone G alone or in combination with antibiotics might prove useful in the control and treatment of MRSA infections.
2. Sophoraflavanone G has an anti-inflammatory effect, inhibiting pro-inflammatory cytokines and mediators production via interruption of the NF-κB and MAPK signaling pathways.
3. Sophoraflavanone G has strong antimicrobial activity against mutans streptococci and could be useful in the development of novel oral hygiene products, such as a gargle solution or dentifrice.
4. Sophoraflavanone G is a novel small-molecule inhibitor of STAT signaling by targeting upstream signals of STATs that may have therapeutic potential for cancers caused by persistently activated STAT proteins.
|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: firstname.lastname@example.org
|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.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||2.3557 mL||11.7786 mL||23.5571 mL||47.1143 mL||58.8928 mL|
|5 mM||0.4711 mL||2.3557 mL||4.7114 mL||9.4229 mL||11.7786 mL|
|10 mM||0.2356 mL||1.1779 mL||2.3557 mL||4.7114 mL||5.8893 mL|
|50 mM||0.0471 mL||0.2356 mL||0.4711 mL||0.9423 mL||1.1779 mL|
|100 mM||0.0236 mL||0.1178 mL||0.2356 mL||0.4711 mL||0.5889 mL|
Biochem Pharmacol. 2013 Oct 1;86(7):950-9.
|Sophoraflavanone G induces apoptosis of human cancer cells by targeting upstream signals of STATs.[Pubmed: 23962443]|
|We identified Sophoraflavanone G as a novel small-molecule inhibitor of STAT signaling in human cancer cells. Sophoraflavanone G inhibited tyrosine phosphorylation of STAT proteins in Hodgkin's lymphoma and tyrosine phosphorylation of STAT3 in solid cancer cells by inhibiting phosphorylation of the Janus kinase (JAK) proteins, Src family tyrosine kinases, such as Lyn and Src, Akt, and ERK1/2. In addition, Sophoraflavanone G inhibited STAT5 phosphorylation in murine-bone-marrow-derived pro-B cells transfected with translocated Ets Leukemia (TEL)-JAKs and cytokine-induced rat pre-T lymphoma cells, as well as STAT5b reporter activity in TEL-JAKs and STAT5b reporter systems. Sophoraflavanone G also inhibited nuclear factor-κB (NF-κB) signaling in multiple myeloma cells. Furthermore, Sophoraflavanone G inhibited cancer cell proliferation and induced apoptosis by regulating the expression of apoptotic and anti-apoptotic proteins. Our data suggest that Sophoraflavanone G is a novel small-molecule inhibitor of STAT signaling by targeting upstream signals of STATs that may have therapeutic potential for cancers caused by persistently activated STAT proteins.|
J Food Sci. 2014 Jul;79(7):T1462-8.
|Metabolism of the hepatotoxic compound sophoraflavanone G in rat liver microsomes.[Pubmed: 24894298]|
|Our study aimed at investigating the metabolic characteristics of Sophoraflavanone G (SFG), one of the hepatotoxic constituents of Sophora flavescens, in rat liver microsomes (RLMs). Sophoraflavanone G was metabolized to 3 phase I metabolites, di-hydroxylated SFG (M1), mono-hydroxylated Sophoraflavanone G (M2), dehydrogenated product of mono-hydroxylated Sophoraflavanone G (M3) and 3 Sophoraflavanone G glucuronides (M4, M5, and M6) by RLMs. The formation kinetics of M2 conformed to biphasic kinetics in RLMs. The formation kinetics of M4 and M5 best-fitted the Hill equation kinetics. Chemical inhibition studies found that CYP1A2 and CYP2E1 were the major enzymes responsible for the formation of M2, and the formation of M4 and M5 may be catalyzed by multiple UGT1A isoforms.|
Anaerobe. 2013 Feb;19:17-21.
|Antimicrobial effect of sophoraflavanone G isolated from Sophora flavescens against mutans streptococci.[Pubmed: 23178373]|
|In this study, the antibacterial properties of Sophoraflavanone G isolated from the methanol extract of Sophora flavescens were tested against 16 strains of mutans streptococci to screen and determine the optimal concentration of anti-caries natural extract. The antimicrobial activity was evaluated by measuring minimum bactericidal concentration (MBC). The cell viability of normal human gingival fibroblast (NHGF) cells was tested using the methyl thiazolyl tetrazolium assay after exposure to Sophoraflavanone G. The data showed that Sophoraflavanone G had a remarkable antimicrobial effect on the bacteria tested with an MBC ranging from 0.5 μg/ml to 4 μg/ml. Sophoraflavanone G had no cytotoxic effect on NHGF cells at concentrations where it produced an antimicrobial effect. These findings demonstrate that Sophoraflavanone G has strong antimicrobial activity against mutans streptococci and could be useful in the development of novel oral hygiene products, such as a gargle solution or dentifrice.|
Food Chem Toxicol. 2013 Dec;62:255-61.
|Anti-inflammatory effect of sophoraflavanone G isolated from Sophora flavescens in lipopolysaccharide-stimulated mouse macrophages.[Pubmed: 24007739]|
|Sophoraflavanone G (SG; 5,7,D, 2',4'-tetrahydroxy-8-lavandulylflavanone) has been isolated from Sophora flavescens and found to be effective against bacteria and to decrease cyclooxygenase (COX)-2 expression in RAW 264.7 macrophage. However, the anti-inflammatory mechanisms of Sophoraflavanone G are not well understood. RAW 264.7 cells were pretreated with various concentrations of Sophoraflavanone G (2.5-20 μM) and inflammatory responses were induced with lipopolysaccharide. Sophoraflavanone G inhibited the levels of nitric oxide and PGE2 and decreased the production of pro-inflammatory cytokines, such as interleukin (IL)-1β, IL-6, and tumor necrosis factor α. The expression of iNOS and COX-2 was also suppressed. However, Sophoraflavanone G increased HO-1 production in a concentration-dependent manner and significantly decreased MAPK activation and inhibited NF-κB subunit p65 proteins to translocate into the nucleus. These results suggest that Sophoraflavanone G has an anti-inflammatory effect, inhibiting pro-inflammatory cytokines and mediators production via interruption of the NF-κB and MAPK signaling pathways.|
Phytother Res. 2009 Sep;23(9):1326-31.
|Antibacterial activity of sophoraflavanone G isolated from the roots of Sophora flavescens against methicillin-resistant Staphylococcus aureus.[Pubmed: 19288534]|
|In this study, Sophoraflavanone G obtained from Sophora flavescens was evaluated against 10 clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA), either alone or in combination with ampicillin or oxacillin, via checkerboard assay. At the end point of an optically clear well, the minimum inhibitory concentrations (MICs) ranged from 0.5 to 8 microg/ml for Sophoraflavanone G, from 64 to 1024 microg/ml for ampicillin, and from 256 to 1024 microg/ml for oxacillin. The combination of Sophoraflavanone G and ampicillin or oxacillin yielded a fractional inhibitory concentration index ranging from 0.188 to 0.375, thereby indicating a principally synergistic effect. The synergistic interaction was verified by time-kill studies using Sophoraflavanone G and/or antibiotics. Thirty minutes of treatment with Sophoraflavanone G with ampicillin or oxacillin resulted in an increase in the rate of killing in units of CFU/ml to a greater degree than was observed with Sophoraflavanone G alone. These findings indicated that the application of the tested Sophoraflavanone G alone or in combination with antibiotics might prove useful in the control and treatment of MRSA infections.|