Alisol B 23-acetate

• CAT Number: I002911
• CAS Number: 26575-95-1
• Molecular Formula: C32H50O5
• Molecular Weight: 514.74
• Purity: ≥95%
• Synonyms: [(1S,3R)-1-[(2R)-3,3-dimethyloxiran-2-yl]-3-[(5R,8S,9S,10S,11S,14R)-11-hydroxy-4,4,8,10,14-pentamethyl-3-oxo-1,2,5,6,7,9,11,12,15,16-decahydrocyclopenta[a]phenanthren-17-yl]butyl] acetate
• InChI: InChI=1S/C32H50O5/c1-18(16-23(36-19(2)33)27-29(5,6)37-27)20-10-14-31(8)21(20)17-22(34)26-30(7)13-12-25(35)28(3,4)24(30)11-15-32(26,31)9/h18,22-24,26-27,34H,10-17H2,1-9H3/t18-,22+,23+,24+,26+,27-,30+,31+,32+/m1/s1
• InChIKey: NLOAQXKIIGTTRE-JSWHPQHOSA-N
• SMILES: CC(CC(C1C(O1)(C)C)OC(=O)C)C2=C3CC(C4C5(CCC(=O)C(C5CCC4(C3(CC2)C)C)(C)C)C)O

Alisol B 23-acetate (23-Acetylalismol B), a natural triterpenoid, produces protective effects against EE-induced cholestasis, due to FXR-mediated gene regulation.
IC50 Value:
Target: Anti-hepatotoxic natural product.
In vitro: Alisol-B 23-acetate has an effect on FXR activation in a dose-dependent manner using luciferase reporter assay in HepG2 cells [3].
In vivo: In alisol B 23-acetate-treated mice, the changes in transporters and enzymes, as well as ameliorative liver histology were abrogated by FXR antagonist guggulsterone [1]. Alisol B 23-acetate treatment in a dose-dependent manner resulted in protection against hepatotoxicity induced by CCl4via FXR activation. Through FXR activation, alisol B 23-acetate promoted hepatocyte proliferation via an induction in hepatic levels of FoxM1b, Cyclin D1 and Cyclin B1. Alisol B 23-acetate also reduced hepatic bile acids through a decrease in hepatic uptake transporter Ntcp, bile acid synthetic enzymes Cyp7a1, Cyp8b1, and an increase in efflux transporter Bsep, Mrp2 expression. In addition, alisol B 23-acetate induced the expression of STAT3 phosphorylation, and STAT3 target genes Bcl-xl and SOCS3, resulting in decreased hepatocyte apoptosis [2].

Reference

[1]. Meng Q, et al. Protective effects of alisol B 23-acetate from edible botanical Rhizoma alismatis against carbon tetrachloride-induced hepatotoxicity in mice. Food Funct. 2015 Apr 8;6(4):1241-50.
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[2]. Meng Q, et al. Alisol B 23-acetate protects against ANIT-induced hepatotoxity and cholestasis, due to FXR-mediated regulation of transporters and enzymes involved in bile acid homeostasis. Toxicol Appl Pharmacol. 2015 Mar 15;283(3):178-86.
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[3]. Meng Q, et al. Alisol B 23-acetate promotes liver regeneration in mice after partial hepatectomy via activating farnesoid X receptor. Biochem Pharmacol. 2014 Nov 15;92(2):289-98.
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[4]. Meng Q, et al. Protective Effects of Alisol B 23-Acetate Via Farnesoid X Receptor-Mediated Regulation of Transporters and Enzymes in Estrogen-Induced Cholestatic Liver Injury in Mice. Pharm Res. 2015 Jun 4.
 [Content Brief]