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人參皂苷F1促進UCP1依賴的脂肪棕色化改善肥胖相關的胰島素抵抗
2023-11-20作者:來源:責任編輯:食品界 字體A+AA-





人參皂苷F1能增加性腺脂肪組織(gWAT)和皮下脂肪組織(iWAT)的棕色化,增加線粒體含量,改善iWAT、gWAT、肝臟、肌肉的胰島素抵抗。

孟煜晗,女,東北師范大學生命科學學院在讀博士,主要研究方向是糖復合物調節(jié)血糖作用及機制。
李葦荔,女,東北師范大學生命科學學院在讀博士,主要研究方向是糖復合物調節(jié)血糖作用及機制。
范玉瑩,女,東北師范大學生命科學學院,副院長,教授,博士生導師,東北師范大學糖復合物教育部工程研究中心學術骨干,吉林省生物化學與分子生物學學會理事。
主要從事糖復合物的結構與功能研究,曾在新加坡國立大學和美國西北大學交流訪學。先后主持國家自然科學基金面上、教育部博士點基金、吉林省科技廳醫(yī)藥產業(yè)發(fā)展專項等7項科研項目;在Autophagy, PLoS Genetics, Carbohydrate Polymers等國際主流期刊上發(fā)表SCI論文27篇;獲東北師范大學教學新星獎、吉林省自然科學一等獎、吉林省自然科學學術成果三等獎;獲授權國家發(fā)明專利5項。
Yuhan Meng1, Weili Li1, Chenxing Hu, Si Chen, Haiyang Li, Feifei Bai, Lujuan Zheng, Ye Yuan, Yuying Fan*, Yifa Zhou*
Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
1 Both authors contributed equally.
*Corresponding authors.
Obesity-induced type 2 diabetes is mainly due to excessive free fatty acids leading to insulin resistance. Increasing thermogenesis is regarded as an effective strategy for hypolipidemia and hypoglycemia. Ginsenoside is a natural active component in Panax ginseng C.A. Meyer, and some of them enhance thermogenesis. However, there are few studies on the mechanism and target of ginsenosides enhancing thermogenesis. Using thermogenic protein uncoupling protein 1 (UCP1)-luciferase reporter assay, we identified ginsenoside F1 as a novel UCP1 activator in the ginsenosides library. Using pull down assay and inhibitor interference, we found F1 binds to β3-adrenergic receptors (β3-AR) to enhance UCP1 expression via cAMP/PKA/CREB pathway. We also investigated the ability of F1 on energy metabolism in obesity-induced diabetic mice, including body weight, body composition and energy expenditure. The results of proteomics showed that F1 significantly up-regulated thermogenesis proteins and lipolytic proteins, but down-regulated fatty acid synthesis proteins. Ginsenoside F1 increased thermogenesis and ameliorated insulin resistance specifically by promoting the browning of white adipose tissue in obese mice. Additionally, ginsenoside F1 improves norepinephrine-induced insulin resistance in adipocytes and hepatocytes, and shows a stronger mitochondria respiration ability than norepinephrine. These findings suggest that ginsenoside F1 is a promising lead compound in the improvement of insulin resistance.