Gene transfer of IkappaBalpha limits infarct size in a mouse model of myocardial ischemia-reperfusion injury. 2003

Francesco Squadrito, and Barbara Deodato, and Giovanni Squadrito, and Paolo Seminara, and Maria Passaniti, and Francesco S Venuti, and Mauro Giacca, and Letteria Minutoli, and Elena B Adamo, and Maria Bellomo, and Rolando Marini, and Mariarosaria Galeano, and Herbert Marini, and Domenica Altavilla
Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy. Francesco.Squadrito@unime.it

Nuclear factor-kappaB (NF-kappaB) plays a central role in myocardial ischemia-reperfusion (MI/R) injury. The inhibitory protein IkappaBalpha prevents its activation. We investigated the effects of adeno-associated viral vector-mediated IkappaBalpha gene transfer in MI/R injury. Male C57BL/6 mice were randomized to receive a recombinant adeno-associated virus (rAAV) encoding the gene for the NF-kappaB inhibitory protein IkappaBalpha (rAAV- IkappaBalpha) or the beta-galactosidase gene (a control and inert gene; rAAV-LacZ), both at a dose of 10(11) copies. Four weeks later anesthetized animals were subjected to total occlusion (45 minutes) of the left main coronary artery followed by 5 hours of reperfusion. MI/R produced a wide infarct size (IF/area-at-risk = 56 +/- 8%; IF/left ventricle = 44 +/- 5%) and tissue neutrophil infiltration, studied by means of elastase activity (area-at-risk = 2.5 +/- 0.4 micro g/gm tissue; infarct area = 2.9 +/- 0.6 micro g/gm tissue). Furthermore MI/R caused peak message for intercellular adhesion molecule-1 (ICAM-1) in the area-at-risk at 3 hours of reperfusion (1.2 +/- 0.4 relative amount of cardiac ICAM-1 mRNA). NF-kappaB activation was evident at 0.5 hours of reperfusion and reached its maximum increase at 2 hours of reperfusion. rAAV-IkappaBalpha injection reduced infarct size (IF/area-at-risk = 19 +/- 3%; IF/left ventricle = 10 +/- 2%; p < 0.001), blocked NF-kappaB activation, diminished cardiac ICAM-1 expression (0.4 +/- 0.02 relative amount of cardiac ICAM-1 mRNA; p < 0.001), and blunted leukocyte accumulation (area-at-risk = 0.6 +/- 0.05 micro g/gm tissue; infarct area = 0.4 +/- 0.02 micro g/gm tissue; p < 0.001). Our data indicate that rAAV-IkappaBalpha may be useful for MI/R gene therapy.

UI MeSH Term Description Entries
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
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
D010196 Pancreatic Elastase A protease of broad specificity, obtained from dried pancreas. Molecular weight is approximately 25,000. The enzyme breaks down elastin, the specific protein of elastic fibers, and digests other proteins such as fibrin, hemoglobin, and albumin. EC 3.4.21.36. Elastase,Pancreatopeptidase,Elastase I,Pancreatic Elastase I,Elastase I, Pancreatic,Elastase, Pancreatic
D006352 Heart Ventricles The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation. Cardiac Ventricle,Cardiac Ventricles,Heart Ventricle,Left Ventricle,Right Ventricle,Left Ventricles,Right Ventricles,Ventricle, Cardiac,Ventricle, Heart,Ventricle, Left,Ventricle, Right,Ventricles, Cardiac,Ventricles, Heart,Ventricles, Left,Ventricles, Right
D000072000 NF-KappaB Inhibitor alpha An I-kappa B protein that inhibits the activity of dimeric NF-KAPPA B P50-REL complexes, sequesters transcription factor NF-kappaB as an inactive complex in the cytoplasm; and prevents NF-kappaB nuclear translocation and DNA binding. I Kappa B-alpha Protein,IKappaB-alpha,IKappaBalpha,Major Histocompatibility Complex Enhancer-Binding Protein MAD3,p40 Protein (IKappaB-alpha),I Kappa B alpha Protein,IKappaB alpha,Inhibitor alpha, NF-KappaB,Major Histocompatibility Complex Enhancer Binding Protein MAD3,NF KappaB Inhibitor alpha,alpha, NF-KappaB Inhibitor
D000256 Adenoviridae A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS) or both (ATADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases. Adenoviruses,Ichtadenovirus,Adenovirus,Ichtadenoviruses
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
D001616 beta-Galactosidase A group of enzymes that catalyzes the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-galactosides. Deficiency of beta-Galactosidase A1 may cause GANGLIOSIDOSIS, GM1. Lactases,Dairyaid,Lactaid,Lactogest,Lactrase,beta-D-Galactosidase,beta-Galactosidase A1,beta-Galactosidase A2,beta-Galactosidase A3,beta-Galactosidases,lac Z Protein,Protein, lac Z,beta D Galactosidase,beta Galactosidase,beta Galactosidase A1,beta Galactosidase A2,beta Galactosidase A3,beta Galactosidases
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated

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