HCBP6 deficiency exacerbates glucose and lipid metabolism disorders in non-alcoholic fatty liver mice.

Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie
Hongping LuJun Cheng

Abstract

Non-alcoholic fatty liver disease (NAFLD), which often accompanied by metabolic syndrome, such as obesity, diabetes and dyslipidemia, has become a global health problem. Our previous results show that HCV core protein binding protein 6 (HCBP6) could maintain the triglyceride homeostasis in liver cells. However, the role of HCBP6 in NAFLD and its associated metabolic disorders remains incompletely understood. Hepatic HCBP6 expression was determined by qRT-PCR, Western blot and immunohistochemistry analysis. HCBP6 knockout (HCBP6-KO) mice were constructed and fed a high-fat diet (HFD) to induce NAFLD. The effects of HCBP6 on glucose and lipid metabolism were measured by HE staining, qRT-PCR, Western blot and GTT. Wild-type and HCBP6-KO mice kept on a HFD were treated with ginsenosides Rh2, and HE staining and GTT were used to study the function of Rh2 in metabolism disorders. HCBP6 is reduced in HFD-fed mice. HCBP6 deficiency increased the body weight, aggravated fatty liver and deteriorated lipid homeostasis as well as glucose homeostasis in HFD-induced mouse model of NAFLD. Moreover, HCBP6-KO mice failed to maintain body temperature upon cold challenge. Mechanistically, HCBP6 could regulate lipolysis and fatty acid oxidation vi...Continue Reading

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