title: Fargesin as a potential β₁ adrenergic receptor antagonist protects the hearts against ischemia/reperfusion injury in rats via attenuating oxidative stress and apoptosis.
abstract: Fargesin displayed similar chromatographic retention peak to metoprolol in the cardiac muscle/cell membrane chromatography (CM/CMC) and β1 adrenergic receptor/cell membrane chromatography (β1AR/CMC) models. To provide more biological information about fargesin, we investigated the effects of fargesin on isoproterenol-(ISO-) induced cells injury in the high expression β1 adrenergic receptor/Chinese hamster ovary-S (β1AR/CHO-S) cells and occluding the left coronary artery- (LAD-) induced myocardial ischemia/reperfusion (MI/R) injury in rats. The results in vitro showed that ISO-induced canonical cyclic adenosine monophosphate (cAMP) and protein kinase A (PKA) levels were decreased by fargesin in β1AR/CHO-S cells. Fargesin attenuated the serum creatine kinase (CK), lactate dehydrogenase (LDH), and improved histopathological changes of ischemic myocardium compared with the I/R rats. Similar results were obtained with Evans Blue/TTC staining, in which fargesin notably reduced infarct size. Moreover, compared with the I/R group, fargesin increased COX release and the activities of some endogenous antioxidative enzymes including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), but suppressed malondialdehyde (MDA), and intracellular ROS release. Additionally, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay demonstrated fargesin suppressed myocardial apoptosis, which may be related to inhibition of caspase-3 activity. Taken together, these results provided substantial evidences that fargesin as a potential β1AR antagonist through cAMP/PKA pathway could protect against myocardial ischemia/reperfusion injury in rats. The underlining mechanism may be related to inhibiting oxidative stress and myocardial apoptosis.
authors.affiliation: College of Pharmacy, Shanxi Medical University, Taiyuan 030001, People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Shanxi Pharmaceutical Vocational College, Taiyuan 030001, People's Republic of China.
authors.forename: Yongjie
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: College of Pharmacy, Shanxi Medical University, Taiyuan 030001, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xue
authors.affiliation: School of Life Sciences, Tsinghua University, Beijing 100083, People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yue
authors.affiliation: Department of Physiology, Shanxi Medical University, Taiyuan 030001, People's Republic of China.
authors.forename: Weifang
authors.initials: W
authors.lastname: Zhang
authors.affiliation: College of Pharmacy, Shanxi Medical University, Taiyuan 030001, People's Republic of China. Electronic address: ninili1235@163.com.
authors.forename: Xiaoni
authors.initials: X
authors.lastname: Li
mesh_terms: D058671:Adrenergic beta-1 Receptor Antagonists / Q000494:pharmacology*; D000818:Animals; D017209:Apoptosis / Q000187:drug effects*; D052117:Benzodioxoles / Q000494:pharmacology*; D016466:CHO Cells; D002316:Cardiotonic Agents / Q000494:pharmacology*; D002374:Catalase / Q000378:metabolism; D003402:Creatine Kinase / Q000097:blood; D003412:Cricetulus; D004195:Disease Models, Animal; D005979:Glutathione Peroxidase / Q000378:metabolism; D006321:Heart / Q000187:drug effects*; D007770:L-Lactate Dehydrogenase / Q000097:blood; D017705:Lignans / Q000494:pharmacology*; D008315:Malondialdehyde / Q000378:metabolism; D015394:Molecular Structure; D009206:Myocardium / Q000473:pathology; D018384:Oxidative Stress / Q000187:drug effects*; D051381:Rats; D017208:Rats, Wistar; D017382:Reactive Oxygen Species / Q000378:metabolism; D015427:Reperfusion Injury / Q000188:drug therapy; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D058671:Adrenergic beta-1 Receptor Antagonists; D052117:Benzodioxoles; D002316:Cardiotonic Agents; D017705:Lignans; D017382:Reactive Oxygen Species; D008315:Malondialdehyde; D007770:L-Lactate Dehydrogenase; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D003402:Creatine Kinase; C539377:fargesin
keywords: Apoptosis; Fargesin; Ischemia/reperfusion; Oxidative stress; β(1)-Adrenergic receptor