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Efficient gene transfer into cardiac myocytes using adeno-associated virus (AAV) vectors. 1998

Y Maeda, and U Ikeda, and M Shimpo, and S Ueno, and Y Ogasawara, and M Urabe, and A Kume, and T Takizawa, and T Saito, and P Colosi, and G Kurtzman, and K Shimada, and K Ozawa
Department of Cardiology, Jichi Medical School, Tochigi, Japan.

Adeno-associated virus (AAV) vectors, derived from a non-pathogenic parvovirus, are considered to be an appropriate gene transfer vehicle for both dividing and non-dividing cells. In the present study, we investigated whether the rat heart could be efficiently transduced with AAV vectors. Rat cardiac myocytes (CM) were infected with AAV-lacZ vector containing beta-galactosidase (beta-gal) gene in vitro, and the expression of beta-gal in CM was evaluated by X-gal staining and beta-gal ELISA. With increasing multiplicities of infection (MOI), more than 60% of CM were stained positively with X-gal, and the beta-gal expression increased to 31.1 +/- 4.6 ng/mg protein in a MOI-dependent manner (MOI: 10(4) to 10(6) particles/cell). The beta-gal expression was also increased in an incubation period-dependent manner (1-24 h). beta-gal expression was maximal at day 3 and then gradually decreased with time. However, beta-gal expression at day 14 was almost the same level as that at day 1 (45.5 +/- 5.9 v 55.2 +/- 6.2 ng/mg protein). Excised rat right ventricular papillary muscles were also infected with AAV-lacZ ex vivo. When the beta-gal expression was evaluated by X-gal staining, more than 80% of CM in the papillary muscles were stained positively, indicating efficient gene transfer into CM using AAV vectors. These findings suggest that AAV vectors are promising for cardiac gene therapy.

UI MeSH Term Description Entries
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
D010210 Papillary Muscles Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae. Muscle, Papillary,Muscles, Papillary,Papillary Muscle
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
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
D000229 Dependovirus A genus of the family PARVOVIRIDAE, subfamily PARVOVIRINAE, which are dependent on a coinfection with helper adenoviruses or herpesviruses for their efficient replication. The type species is Adeno-associated virus 2. Adeno-Associated Viruses,Dependoparvovirus,Adeno-Associated Virus,Virus, Adeno-Associated,Viruses, Adeno-Associated,Adeno Associated Virus,Adeno Associated Viruses,Dependoparvoviruses,Dependoviruses,Virus, Adeno Associated,Viruses, Adeno 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
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
D014161 Transduction, Genetic The transfer of bacterial DNA by phages from an infected bacterium to another bacterium. This also refers to the transfer of genes into eukaryotic cells by viruses. This naturally occurring process is routinely employed as a GENE TRANSFER TECHNIQUE. Genetic Transduction,Genetic Transductions,Transductions, Genetic
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

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