Details

Autor(en) / Beteiligte

• Song, Tongxin
• Wang, Pengli
• Li, Chenyang
• Jia, Li
• Liang, Qianqian
• Cao, Yuanlin
• Dong, Pengzhi
• Shi, Hong
• Jiang, Miaomiao

Titel

Salidroside simultaneously reduces de novo lipogenesis and cholesterol biosynthesis to attenuate atherosclerosis in mice

Ist Teil von

• Biomedicine & pharmacotherapy, 2021-02, Vol.134, p.111137-111137, Article 111137

Ort / Verlag

France: Elsevier Masson SAS

Erscheinungsjahr

2021

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •Salidroside inhibited de novo lipogenesis and cholesterol biosynthesis in atherogenic mice.•Hepatic levels of glucose and glycogen contents were lowered by salidroside.•INSIG-SREBP complex was supposed to be the target of salidroside.•Salidroside accelerated fatty acid degradation to produce more 3-hydroxybutyrate. Salidroside is a kind of phenylethanoid glycoside and widespread in the plants from Rhodiola and Ligustrum species. Our previous study has reported that salidroside can prevent atherosclerosis progression by ameliorating glyerolipid and glycerophospholipid metabolism in apoE-deficient (apoE−/−) mice. However, its effect on neutral lipids and underlying mechanism remains largely unclear. Here we investigated the molecular mechanism of salidroside action from the perspective of metabolic regulation by integrating metabonomics and transcriptomics pattern. The results showed that salidroside significantly reduced cholesterols, esterified cholesterols, fatty acids, unsaturated fatty acids and triacylclycerols biosynthesis in liver through down-regulating the genes expressions of sterol regulatory element-binding proteins (Srebf1 and Srebf2). The expressions of SREBPs targeted and downstream genes, such as the encoding genes of fatty acid synthase (Fasn), glycerol-3-phosphate acyltransferase (Gpam), stearoyl-CoA desaturase (Scd), 3-hydroxy-3-methylglutaryl-CoA reductase (Hmgcr), and proprotein convertase subtilisin/kexin type 9 (Pcsk9), were also inhibited after salidroside administration. ATP citrate lyase gene (Acly) that encodes an important enzyme producing acetyl-CoA for cholesterol and fatty acid biosynthesis significantly decreased after treatment as well. Moreover, one of ketone body products, 3-hydroxybutyrate, was significantly up-regulated in drug-treated group, indicating that fatty acid degradation was accelerated by salidroside at the same time. Our findings identify salidroside as a regulator of lipid homeostasis in atherosclerotic mice, suggesting its potential to be an alternative medicine for lowering the risks of atherosclerosis-related diseases.