Involvement of DJ‑1 in ischemic preconditioning‑induced delayed cardioprotection in vivo. 2017

Huan Wang, and Yuan-Yuan Li, and Ling-Yu Qiu, and Yu-Feng Yan, and Zhang-Ping Liao, and He-Ping Chen
Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China.

DJ‑1 protein, as a multifunctional intracellular protein, has been demonstrated to serve a critical role in regulating cell survival and oxidative stress. To provide in vivo evidence that DJ‑1 is involved in the delayed cardioprotection induced by ischemic preconditioning (IPC) against oxidative stress caused by ischemia/reperfusion (I/R), the present study subjected male Sprague‑Dawley rats to IPC (3 cycles of 5‑min coronary occlusion/5‑min reperfusion) 24 h prior to I/R (30‑min coronary occlusion/120‑min reperfusion). A lentiviral vector containing short hairpin RNA was injected into the left ventricle three weeks prior to IPC, to knockdown DJ‑1 in situ. Lactate dehydrogenase (LDH) and creatine kinase‑MB (CK‑MB) release, infarct size, cardiac function, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities, malondialdehyde (MDA), intracellular reactive oxygen species (ROS), and DJ‑1 protein expression levels were assessed. IPC caused a significant increase in the expression levels of DJ‑1 protein. In addition, IPC reduced LDH and CK‑MB release, attenuated myocardial infarct size, improved cardiac function following I/R, and inhibited the elevation of ROS and MDA and the decrease in activities of the antioxidant enzymes SOD, CAT and GPx. However, in situ knockdown of DJ‑1 attenuated the IPC‑induced delayed cardioprotection, and reversed the inhibitory effect of IPC on I/R‑induced oxidative stress. The present study therefore provided novel evidence that DJ‑1 is involved in the delayed cardioprotection of IPC against I/R injury in vivo. Notably, DJ‑1 is required for IPC to inhibit I/R‑induced oxidative stress.

UI MeSH Term Description Entries
D008297 Male Males
D009203 Myocardial Infarction NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION). Cardiovascular Stroke,Heart Attack,Myocardial Infarct,Cardiovascular Strokes,Heart Attacks,Infarct, Myocardial,Infarction, Myocardial,Infarctions, Myocardial,Infarcts, Myocardial,Myocardial Infarctions,Myocardial Infarcts,Stroke, Cardiovascular,Strokes, Cardiovascular
D009206 Myocardium The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow. Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D000071617 Protein Deglycase DJ-1 A protein deglycase that repairs methylglyoxal- and glyoxal-glycated amino acids and proteins, releasing repaired proteins and lactate or glycolate. It deglycates CYSTEINE, ARGININE and LYSINE residues to reactivate proteins by reversing glycation and prevent the formation of ADVANCED GLYCATION END PRODUCTS. It protects cells against OXIDATIVE STRESS and CELL DEATH by functioning as an oxidative stress sensor and redox-sensitive MOLECULAR CHAPERONE and PROTEASE. Mutations in the PARK7 gene are associated with autosomal-recessive, early-onset PARKINSON DISEASE. DJ-1 Protein,DJ-1-PARK7 Protein,DJ1 Protein,PARK7 Protein,Parkinson Protein 7,Parkinsonism Associated Deglycase,DJ 1 PARK7 Protein,DJ 1 Protein,DJ-1, Protein Deglycase,Deglycase, Parkinsonism Associated
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015428 Myocardial Reperfusion Injury Damage to the MYOCARDIUM resulting from MYOCARDIAL REPERFUSION (restoration of blood flow to ischemic areas of the HEART.) Reperfusion takes place when there is spontaneous thrombolysis, THROMBOLYTIC THERAPY, collateral flow from other coronary vascular beds, or reversal of vasospasm. Reperfusion Injury, Myocardial,Injury, Myocardial Reperfusion,Myocardial Ischemic Reperfusion Injury,Injuries, Myocardial Reperfusion,Myocardial Reperfusion Injuries,Reperfusion Injuries, Myocardial
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D017382 Reactive Oxygen Species Molecules or ions formed by the incomplete one-electron reduction of oxygen. These reactive oxygen intermediates include SINGLET OXYGEN; SUPEROXIDES; PEROXIDES; HYDROXYL RADICAL; and HYPOCHLOROUS ACID. They contribute to the microbicidal activity of PHAGOCYTES, regulation of SIGNAL TRANSDUCTION and GENE EXPRESSION, and the oxidative damage to NUCLEIC ACIDS; PROTEINS; and LIPIDS. Active Oxygen Species,Oxygen Radical,Oxygen Radicals,Pro-Oxidant,Reactive Oxygen Intermediates,Active Oxygen,Oxygen Species, Reactive,Pro-Oxidants,Oxygen, Active,Pro Oxidant,Pro Oxidants,Radical, Oxygen
D018384 Oxidative Stress A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage. Indicators of oxidative stress include damaged DNA bases, protein oxidation products, and lipid peroxidation products (Sies, Oxidative Stress, 1991, pxv-xvi). Anti-oxidative Stress,Antioxidative Stress,DNA Oxidative Damage,Nitro-Oxidative Stress,Oxidative Cleavage,Oxidative DNA Damage,Oxidative Damage,Oxidative Injury,Oxidative Nitrative Stress,Oxidative Stress Injury,Oxidative and Nitrosative Stress,Stress, Oxidative,Anti oxidative Stress,Anti-oxidative Stresses,Antioxidative Stresses,Cleavage, Oxidative,DNA Damage, Oxidative,DNA Oxidative Damages,Damage, DNA Oxidative,Damage, Oxidative,Damage, Oxidative DNA,Injury, Oxidative,Injury, Oxidative Stress,Nitrative Stress, Oxidative,Nitro Oxidative Stress,Nitro-Oxidative Stresses,Oxidative Cleavages,Oxidative DNA Damages,Oxidative Damage, DNA,Oxidative Damages,Oxidative Injuries,Oxidative Nitrative Stresses,Oxidative Stress Injuries,Oxidative Stresses,Stress Injury, Oxidative,Stress, Anti-oxidative,Stress, Antioxidative,Stress, Nitro-Oxidative,Stress, Oxidative Nitrative,Stresses, Nitro-Oxidative
D019157 Ischemic Preconditioning, Myocardial Exposure of myocardial tissue to brief, repeated periods of vascular occlusion in order to render the myocardium resistant to the deleterious effects of ISCHEMIA or REPERFUSION. The period of pre-exposure and the number of times the tissue is exposed to ischemia and reperfusion vary, the average being 3 to 5 minutes. Myocardial Preconditioning,Myocardial Ischemic Preconditioning,Preconditioning, Myocardial,Preconditioning, Myocardial Ischemic

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