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    Turofexorate Isopropyl (XL335)
    Turofexorate Isopropyl (XL335)

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    This product is for research use only, not for human use. We do not sell to patients.
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    InvivoChem Cat #: V1842
    CAS #: 629664-81-9Purity ≥98%

    Description: Turofexorate Isopropyl (also known as WAY-362450, Fxr 450 and XL335) is a novel, highly potent, selective and orally bioavailable FXR (farnesoid X receptor) agonist with EC50 of 4 nM, it is highly selective versus other nuclear receptors, such as LXR, PPAR, ER and etc. XL335 has shown to reduce IL-6-induced both mRNA and protein expression of CRP via FXR in human hepatoma Hep3B cells. XL335 remarkably reduced LPS-induced SAP and SAA3 mRNA expression in WT mice, but not in FXR/KO mice. It attenuates liver inflammation and fibrosis in murine model of non-alcoholic steatohepatitis. 

    References: J Med Chem. 2009 Feb 26;52(4):904-7.

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    Molecular Weight (MW)438.47
    FormulaC25H24F2N2O3
    CAS No.629664-81-9
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 33 mg/mL (75.3 mM)
    Water: <1 mg/mL
    Ethanol: 2 mg/mL (4.6 mM)
    Solubility (In vivo)NMP+polyethylene glycol 300 (10+90, v+v): 30 mg/mL
    SynonymsFxr 450; WAY-362450; WAY362450; WAY 362450; XL335; XL 335; XL-335; FXR-450; FXR 450; FXR450


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    In Vitro

    In vitro activity: WAY-362450 binds to the ligand-binding domain (LBD) of human FXR. WAY-362450 resides in a predominately hydrophobic pocket with only a few polar atoms making contact with WAY-362450. WAY-362450 promotes transcription of the human BSEP, human SHP, and mouse IBABP genes utilizing reporter constructs with EC50 of 17, 230, and 33 nM, respectively in promoter assays. WAY-362450 at concentration of 1 μM significantly induces mRNAs encoding for BSEP, SHP, and IBABP in human cell cultures to 13-, 2-, and 20-fold, respectively. WAY-362450 at concentration of 1 μM suppresses interleukin-6-induced CRP expression in human Hep3B hepatoma cells, and the inhibitory effect is attenuated when knockdown of FXR by short interfering RNA.


    Cell Assay: Mouse AML12 cells are plated at 200,000 cells/well on the 24-well plate in 1 mL of growth medium [DMEM/F12 10% FBS, 1% penicillin and streptomycin, 1% insulin-transferrin-selenium-G supplement (ITS), 0.1% Dexamethasone (40 ng/mL)/well. The cells are treated with increasing concentrations of Turofexorate isopropyl (WAY-362450) (0.001, 0.01, 0.1, 1 and 10 μM) or GW4064 for 24 h. Total RNA is prepared and analyzed by real-time RT-PCR, and short heterodimer partner (SHP) expression is normalized to GAPDH and reported as fold induction vs. vehicle-treated cells. Preplated 24-well plates of human male primary hepatocytes with matrigel overlay are obtained from Cellz Direct. Cells are maintained in serum-free Williams medium E and supplemented with penicillin/streptomycin, dexamethasone, ITS, L-glutamine, and HEPES buffer. They are treated overnight with vehicle (0.01% DMSO) or increasing concentrations of Turofexorate isopropyl (WAY-362450) or GW4064. Total RNA is purified using the Qiagen RNeasy clean kit, and gene expression is quantified by real-time RT-PCR with the Qiagen Quantitech kit using an ABI 7900. The relative amount of mRNA is normalized to 18S ribosomal RNA, and data shown represent an average of two independent experiments.

    In VivoWAY-362450 administrated intravenously or orally at does of 3 mg/kg in rats with a protracted half-life of 25 h, modest volume of distribution, and low clearance of 3.3 L/kg. WAY-362450 administered orally at dose of 10 mg/kg in normal C57bl/6 mice for a period of 7 days significantly lowers triglycerides to 62.0 ± 6.4 mg/dL and total cholesterol to 78.1 ± 5.0 mg/dL. WAY-362450 administered orally at dose of 1 and 3 mg/kg daily for 6 weeks in LDLR−/− mice, triglycerides is lowered by 19% and 39%, respectively, total cholesterol is lowered by 23% and 50%, respectively and lesion formation by 18% and 36%, respectively. WAY-362450 intraperitoneally administrated at dose of 30 mg/kg daily for 4 days in wild type C57BL/6 mice attenuates lipopolysaccharide-induced serum amyloid P component and serum amyloid A3 mRNA levels in the liver. WAY-362450 orally administered at dose of 30 mg/kg/day for 4 weeks in adult male C57BL/6 mice reduces inflammatory cell infiltration and hepatic fibrosis, the reduction in inflammatory cell infiltration correlates with deceased serum levels of keratinocyte derived chemokine (mKC) and MCP 1 and decreased hepatic gene expression of MCP-1 and VCAM-1, and the reduction of hepatic fibrosis by WAY-362450 treatment corresponded to a reduction in hepatic gene expression of fibrosis markers. WAY-362450 administrated orally at dose of 30mg/kg in LDLR−/− and apoE−/− mice blocks diet-induced hypertriglyceridemia and elevations of non-HDL cholesterol and produced a near complete inhibition of aortic lesion formation, WAY-362450 also induced small heterodimer partner (SHP) expression and repressed cholesterol 7α-hydroxylase (CYP7A1) and sterol 12 α-hydroxylase (CYP8B1) expression
    Animal modelSeven week old male C57bl/6 mice
    Formulation & DosageDissolved in NMP:Solutol:PEG400:H2O, 10:10:40:40; 10 mg/kg; Oral gavage
    ReferencesJ Med Chem. 2009 Feb 26;52(4):904-7.


    These protocols are for reference only. InvivoChem does not independently validate these methods.

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