For research use only.
CAS No. 434-13-9
Lithocholic acid is a toxic secondary bile acid, causes intrahepatic cholestasis, has tumor-promoting activity, its toxic effect can be protected after it activates the vitamin D receptor, PXR and FXR.
Purity & Quality Control
Choose Selective FXR Inhibitors
|Description||Lithocholic acid is a toxic secondary bile acid, causes intrahepatic cholestasis, has tumor-promoting activity, its toxic effect can be protected after it activates the vitamin D receptor, PXR and FXR.|
Lithocholic acid (LCA) is a hydrophobic secondary bile acid that is primarily formed in the intestine by the bacterial 7α-dehydroxylation of chenodeoxycholic acid. LCA causes intrahepatic cholestasis (cessation or impairment of bile flow). LCA activates PXR (pregnane X receptor), and the LCA-induced severe liver damage can be protected by the activation of PXR.  LCA is a ligand for farnesoid X receptor (FXR) with EC50 of 3.8 μM.  LCA directly binds VDR (vitamin D receptor) with Ki of 29μM, activates VDR (vitamin D receptor) 30 μM, with much more sensitivity than the other nuclear receptors (eg. PXR, FXR), and its toxic effect is thus protected.  LCA has tumor-promoting activity, inhibits mammalian DNA Polymerase β with IC50 of 15 μM. 
|In vivo||Administration of LCA and its conjugates to rodents causes intrahepatic cholestasis,a pathogenic state characterized by decreased bile flow and the accumulation of bile constituents in the liver and blood.  In DMH (dimethyldydrazine)-induced murine carcinogenesis model, LCA suppresses apoptosis almost completely in premalignant colon.  LCA activates VDR, induces expression in vivo of CYP3A, a cytochrome P450 enzyme that detoxifies LCA in the liver and intestine. |
Competitive ligand binding assay.:Ligand binding is performed using lysates from COS-7 cells transfected with expression plasmids for VDR or RXRα. Binding is performed overnight at 4°C in lysate buffer with 0.71 nM (18 Ci/mmol) [3H]1,25(OH)2D3 and bile acid competitor. Unbound [3H]1,25(OH)2D3 is removed by adsorption to dextran-coated charcoal and the supernatant removed for scintillation counting. Ki values are calculated from a computer fit of competition curves from triplicate assays.
-  Staudinger JL, et al. PNAS, 2001, 98(6), 3369-3374.
-  Parks DJ, et al. Science, 1999, 284(5418), 1365-1368.
-  Makishima M, et al. Science, 2002, 296(5571), 1313-1316.
|In vitro||DMSO||75 mg/mL (199.16 mM)|
|Ethanol||47 mg/mL (124.81 mM)|
* 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.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation ()|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take μL DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT02654496||Completed||Other: Meal challenge||Obesity||North Dakota State University||January 2016||--|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.