Effective Transduction of Human Adipose Stromal Cells by a Recombinant Adeno-Associated Virus



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Abstract

Despite the initial indications of positive therapeutic effects in cell therapy there are still limitations in numbers of autologous cell populations available without significant ex vivo expansion. Autologous adipose stromal cells CASCJ transplantation due to sufficient cell numbers, their multipotency and the ability to secret angiogenic growth factors may become an alternative tool to treat cardiovascular diseases. In this study we Investigated the ability to efficiently transfer gene into such cells using plasmid and recombinant adeno-associated virus (rAAVJ.
Human ASC were isolated from adipose tissue obtained from different donors during surgical operations. Low passaged cells were transduced using gene delivery system CStratagene] based on recombinant adeno-associated virus (rAAVJ serotype 2 encoding human vascular endothelial growth factor (VEGF) or green fluorescent protein (GFP). Transduction efficiencies and transgene expression level in ASCs were analyzed by quantitative flow cytometry and ELISA.
ASC population was analysed for heparan sulfate proteoglycan expression, the main cellular AAV binding receptor. It was found that 55-65% of human ASC population express this receptor. The efficiency of ASC transduction using AAV delivery system was found to be 60+7%. GFP expression was visible during a month. Relative to control, cells transduced by VEGF rAAV vector increased VEGF secretion level by at least 20-30 fold as compared to unmanipulated ASC.
Recombinant adeno-associated virus provides efficient tools for ex vivo modification of human ASCs.

About the authors

E K Shevchenko

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

P I Makarevich

The Faculty of Fundamental Medicine, Lomonosov Moscow State University

The Faculty of Fundamental Medicine, Lomonosov Moscow State University

Z I Tsokolaeva

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

E I Ratner

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical Care

E V Parfionova

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical CareThe Faculty of Fundamental Medicine, Lomonosov Moscow State University

The Institute of Experimental Cardiology of the FSI Russian Cardiologic Research-and-Production Complex of the Federal Agency of High-Tech Medical CareThe Faculty of Fundamental Medicine, Lomonosov Moscow State University

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