Effects of AM80 compared to AC261066 in a high fat diet mouse model of liver disease.

TitleEffects of AM80 compared to AC261066 in a high fat diet mouse model of liver disease.
Publication TypeJournal Article
Year of Publication2019
AuthorsMelis M, Tang X-H, Trasino SE, Patel VM, Stummer DJ, Jessurun J, Gudas LJ
JournalPLoS One
Volume14
Issue1
Paginatione0211071
Date Published2019
ISSN1932-6203
KeywordsAnimals, Benzoates, Dietary Fats, Glucose Intolerance, Hyperglycemia, Liver, Male, Mice, Non-alcoholic Fatty Liver Disease, Receptors, Retinoic Acid, Retinol-Binding Proteins, Cellular, Tetrahydronaphthalenes, Thiazoles, Triglycerides, Vitamin A
Abstract

The roles of retinoids in nonalcoholic fatty liver disease (NAFLD) remain unclear and a better understanding may lead to therapies that prevent or limit NAFLD progression. We examined the actions of retinoic acid receptor (RAR) agonists- AM80 for RARα and AC261066 for RARβ2- in a murine model of NAFLD. We fed wild type C57Bl/6 mice a chow or a 45% high fat diet (HFD) for 12 weeks, followed by 4 additional weeks with the HFD+AM80; HFD+AC261066; or HFD. The HFD+AM80 group showed greater hyperglycemia and glucose intolerance compared to other groups. Histopathological evaluation of the livers showed the highest degree of steatosis, triglycerides levels, and inflammation, assessed by F4/80 staining, in the HFD+AM80-treated compared to the HFD, the HFD+AC261066, and chow-fed mice. Liver vitamin A (retinol (ROL)) and retinyl palmitate levels were markedly lower in all HFD groups compared to chow-fed controls. HFD+AC261066-treated mice showed higher levels of a key intracellular ROL transporter, retinol-binding protein-1 (RBP1) compared to the HFD and HFD+AM80 groups. In conclusion, these data demonstrate that the selective RARα agonist AM80 exacerbates HFD-induced NAFLD and hyperglycemia. These findings should inform future studies examining the therapeutic potential of RAR agonists in HFD-related disorders.

DOI10.1371/journal.pone.0211071
Alternate JournalPLoS ONE
PubMed ID30677086
PubMed Central IDPMC6345457
Grant ListT32 CA062948 / CA / NCI NIH HHS / United States
R01 CA043796 / CA / NCI NIH HHS / United States
R01 DK113088 / DK / NIDDK NIH HHS / United States