NDLI: Sustained peripheral expression of transgene adiponectin offsets the development of diet-induced obesity in rats

Content Provider	PubMed Central
Author	Shklyaev, Stanislav Aslanidi, George Tennant, Michael Prima, Victor Eric, Kohlbrenner Vadim, Kroutov Martha, Campbell-thompson Crawford, James Shek, Eugene W. Scarpace, Philip J. Zolotukhin, Sergei
Copyright Year	2003
Abstract	Adiponectin (Acrp30) is a physiologically active polypeptide hormone secreted by adipose tissue that shows insulin-sensitizing, antiinflammatory, and antiatherogenic properties. In humans, Acrp30 levels are inversely related to the degree of adiposity. In the current study, we tested the long-term weight-reducing and insulin-enhancing effects of Acrp30 cDNA delivered peripherally by a viral vector. To this end, we have generated a series of recombinant adeno-associated virus vectors of serotypes 1 and 5 encoding mouse Acrp30 cDNAs. The long-term expression of recombinant adeno-associated virus-Acrp30 vectors was tested after intramuscular or intraportal injection in female Sprague–Dawley rats with diet-induced obesity. We show that a single peripheral injection of 1012 physical particles of Acrp30-encoding vectors resulted in sustained (up to 280 days) significant reduction in body weight, concomitant with the reduction in daily food intake. Acrp30 treatment resulted in higher peripheral insulin sensitivity measured by the i.p. glucose tolerance test in fasted animals. Ectopic expression of the Acrp30 transgene resulted in modulation of hepatic gluconeogenesis and lipogenesis, as demonstrated by the reduction of the expression of two key genes: PEPCK (phosphoenolpyruvate carboxykinase) and SREBP-1c (sterol regulatory element-binding protein 1c) in the liver. These data show successful peripheral therapy in a clinically relevant model for human obesity and insulin resistance.
Related Links	http://dx.doi.org/10.1073/pnas.2333912100
Ending Page	14222
Page Count	6
Starting Page	14217
File Format	PDF
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	24
Volume Number	100
Language	English
Publisher	National Academy of Sciences
Publisher Date	2003-11-25
Access Restriction	Open
Rights Holder	National Academy of Sciences
Subject Keyword	General Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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