@article{APS9992,
author = {Mao-xu Ge and Wei-xiao Niu and Jin-feng Ren and Shi-ying Cai and Dong-ke Yu and Hong-tao Liu and Na Zhang and Yi-xuan Zhang and Yu-cheng Wang and Rong-guang Shao and Ju-xian Wang and Hong-wei He},
title = {A novel ASBT inhibitor, IMB17-15, repressed nonalcoholic fatty liver disease development in high-fat diet-fed Syrian golden hamsters},
journal = {Acta Pharmacologica Sinica},
volume = {40},
number = {7},
year = {2019},
keywords = {},
abstract = {The manipulation of bile acid (BA) homeostasis by blocking the ileal apical Na+-dependent bile salt transporter (ASBT/SLC10A2) may have therapeutic effects in nonalcoholic fatty liver disease. We developed a novel ASBT inhibitor, an N-(3,4-o-dichlorophenyl) −2-(3-trifluoromethoxy) benzamide derivative referred to as IMB17–15, and investigated its therapeutic effects and the molecular mechanisms underlying the effects. Syrian golden hamsters were challenged with high-fat diet (HFD) to induce NAFLD and were subsequently administered 400 mg/kg IMB17–15 by gavage daily for 21 days. Serum, liver, and fecal samples were collected for further analysis. Plasma concentration-time profiles of IMB17–15 were also constructed. The human hepatocyte cell line HL-7702 was treated with Oleic acid (OA) with or without IMB17–15. Western blotting and real-time PCR were used to study the molecular mechanisms of IMB17–15. We found that IMB17–15 inhibited ASBT and subsequently suppressed ileal farnesoid X receptor (FXR) and FXR-activated fibroblast growth factor15/19 (FGF15/19) expression, which reduced the hepatic phosphorylated extracellular regulated protein kinase (ERK) and c-Jun N-terminal kinase (JNK) levels and upregulated the cholesterol 7α-hydroxylase (CYP7A1) activity. Additionally, IMB17–15 stimulated adenosine monophosphate (AMP)-activated protein kinase (AMPKα) phosphorylation and enhanced peroxisome proliferator activated receptor α (PPARα) expression and thus promoted triglyceride (TG) oxidation and high-density lipoprotein cholesterol (HDL-c) metabolism through an ASBT-independent mechanism. In conclusion, a novel ASBT inhibitor known as IMB17–15 protected hamsters against HFD-induced NFALD by manipulating BA and lipid homeostasis. IMB17–15 also reduced lipid deposition in human hepatic cell lines, indicating that it may be useful as a therapy for NAFLD patients.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/9992}
}