Geniposide alleviates heart failure with preserved ejection fraction in mice by regulating cardiac oxidative stress via MMP2/SIRT1/GSK3βpathway  

作　　者：Yan-lu Han Teng-teng Yan Hua-xin Li Sha-sha Chen Zhen-zhen Zhang Meng-yao Wang Mei-jie Chen Yuan-li Chen Xiao-xiao Yang Ling-ling Wei Ya-jun Duan Shuang Zhang 

机构地区：[1]Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes,College of Food and Biological Engineering,Hefei University of Technology,Hefei 230601,China [2]Department of Cardiology,The First Affiliated Hospital of USTC,Division of Life Sciences and Medicine,University of Science and Technology of China,Hefei 230031,China

出　　处：《Acta Pharmacologica Sinica》2024年第12期2567-2578,共12页中国药理学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)Grant 82304503 to Shuang Zhang;Anhui Provincial Natural Science Foundation Grant 2308085QH305 to Shuang Zhang;the Fundamental Research Funds for the Central Universities(Hefei University of Technology)grant JZ2023HGTB0288 to Shuang Zhang。

摘　　要：Heart failure with preserved ejection fraction(HFpEF)is a complex clinical syndrome with cardiac dysfunction,fluid retention and reduced exercise tolerance as the main manifestations.Current treatment of HFpEF is using combined medications of related comorbidities,there is an urgent need for a modest drug to treat HFpEF.Geniposide(GE),an iridoid glycoside extracted from Gardenia Jasminoides,has shown significant efficacy in the treatment of cardiovascular,digestive and central nervous system disorders.In this study we investigated the therapeutic effects of GE on HFpEF experimental models in vivo and in vitro.HFpEF was induced in mice by feeding with HFD and L-NAME(0.5 g/L)in drinking water for 8 weeks,meanwhile the mice were treated with GE(25,50 mg/kg)every other day.Cardiac echocardiography and exhaustive exercise were performed,blood pressure was measured at the end of treatment,and heart tissue specimens were collected after the mice were euthanized.We showed that GE administration significantly ameliorated cardiac oxidative stress,inflammation,apoptosis,fibrosis and metabolic disturbances in the hearts of HFpEF mice.We demonstrated that GE promoted the transcriptional activation of Nrf2 by targeting MMP2 to affect upstream SIRT1 and downstream GSK3β,which in turn alleviated the oxidative stress in the hearts of HFpEF mice.In H9c2 cells and HL-1 cells,we showed that treatment with GE(1μM)significantly alleviated H2O2-induced oxidative stress through the MMP2/SIRT1/GSK3βpathway.In summary,GE regulates cardiac oxidative stress via MMP2/SIRT1/GSK3βpathway and reduces cardiac inflammation,apoptosis,fibrosis and metabolic disorders as well as cardiac dysfunction in HFpEF.

关 键 词：HFpEF GENIPOSIDE SIRT1 MMP2 GSK3Β oxidative stress 

分 类 号：R541.6[医药卫生—心血管疾病]