IMM-H007, a new therapeutic candidate for nonalcoholic fatty liver disease, improves hepatic steatosis in hamsters fed a high-fat diet

Huijie Shi, Qingchun Wang, Liu Yang, Shouxia Xie, Haibo Zhu
FEBS Open Bio 2017, 7 (9): 1379-1391
Nonalcoholic fatty liver disease (NAFLD), the most common chronic liver disease in humans, is characterized by the accumulation of triacylglycerols (TGs) in hepatocytes. We tested whether 2',3',5'-tri-acetyl-N6-(3-hydroxylaniline) adenosine (IMM-H007) can eliminate hepatic steatosis in hamsters fed a high-fat diet (HFD), as a model of NAFLD. Compared with HFD-only controls, IMM-H007 treatment significantly lowered serum levels of TG, total cholesterol, and free fatty acids (FFAs) in hamsters fed the HFD, with a prominent decrease in levels of serum transaminases and fasting insulin, without affecting fasting glucose levels. Moreover, 1 H-MRI and histopathological analyses revealed that hepatic lipid accumulation and fibrosis were improved by IMM-H007 treatment. These changes were accompanied by improvement of insulin resistance and oxidative stress, and attenuation of inflammation. IMM-H007 reduced expression of proteins involved in uptake of hepatic fatty acids and lipogenesis, and increased very low density lipoprotein secretion and expression of proteins responsible for fatty acid oxidation and autophagy. In studies in vivo , IMM-H007 inhibited fatty acid import into hepatocytes and liver lipogenesis, and concomitantly stimulated fatty acid oxidation, autophagy, and export of hepatic lipids. These data suggest that IMM-H007 resolves hepatic steatosis in HFD-fed hamsters by the regulation of lipid metabolism. Thus, IMM-H007 has therapeutic potential for NAFLD.

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