Article

Repurposing matrine for the treatment of hepatosteatosis and associated disorders in glucose homeostasis in mice

Authors: Ali Mahzari1, Xiao-Yi Zeng1, Xiu Zhou1, Songpei Li1, Jun Xu2, Wen Tan3, Ross Vlahos1, Stephen Robinson1, Ji-Ming YE1
1 School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
2 School of Chemical Engineering, Wuyi University, Jiangmen, China
3 Institute of Biomedical & Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
Correspondence to: Ji-Ming YE: jiming.ye@rmit.edu.au,
DOI: 10.1038/s41401-018-0016-8
Received: 18 October 2017
Accepted: 6 February 2018
Advance online: 6 July 2018

Abstract

The present study investigated the efficacy of the hepatoprotective drug matrine (Mtr) for its new application for hepatosteatosis and associated disorders in glucose homeostasis. The study was performed in two nutritional models of hepatosteatosis in mice with various abnormal glucose homeostasis: (1) high-fructose diet (HFru) induced hepatosteatosis and glucose intolerance from hepatic, and (2) hepatosteatosis and hyperglycemia induced by high-fat (HF) diet in combination with low doses of streptozotocin (STZ). Administration of Mtr (100 mg/kg every day in diet for 4 weeks) abolished HFru-induced hepatosteatosis and glucose intolerance. These effects were associated with the inhibition of HFru-stimulated de novo lipogenesis (DNL) without altering hepatic fatty acid oxidation. Further investigation revealed that HFru-induced endoplasmic reticulum (ER) stress was inhibited, whereas heat-shock protein 72 (an inducible chaperon protein) was increased by Mtr. In a type 2 diabetic model induced by HF-STZ, Mtr reduced hepatosteatosis and improved attenuated hyperglycemia. The hepatoprotective drug Mtr may be repurposed for the treatment of hepatosteatosis and associated disorders in glucose homeostasis. The inhibition of ER stress associated DNL and fatty acid influx appears to play an important role in these metabolic effects.
Keywords: matrine; hepatosteatosis; glucose intolerance; hyperglycemic control

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