Abstract:
:Plasma apolipoprotein AI (apoAI) and lecithin-cholesterol acyltransferase (LCAT) play important roles in reverse cholesterol transport, promoting the removal of excess cholesterol from peripheral cells and reducing formation of atherosclerotic lesions. Gene augmentation of either apoAI or LCAT, or both, are thus attractive targets for prevention or treatment of atherosclerosis. With the eventual aim of safe and efficient gene delivery to skeletal muscle, our chosen secretory platform for systemic delivery of anti-atherogenic proteins, we have constructed conventional and AAV-based plasmid vectors containing human apoAI or LCAT cDNAs; their efficacy was tested by lipoplex transfection of mouse C2C12 muscle cells or human 293 cells. The secretion of apoAI or LCAT by transduced cultures was two- to five-fold higher using AAV-based plasmid vectors than conventional plasmid vectors. Additionally, cells transfected with a bicistronic AAV-based vector containing an internal ribosome entry site (IRES) efficiently expressed both apoAI and LCAT simultaneously. Furthermore, AAV-based vector sequences were retained by host cells, whereas those of conventional plasmid vectors were lost. These studies indicate that ectopic overexpression of apoAI and LCAT in muscle tissue using AAV-based plasmid vectors might provide a feasible anti-atherogenic strategy in vivo.
journal_name
Gene Therjournal_title
Gene therapyauthors
Fan L,Drew J,Dunckley MG,Owen JS,Dickson Gdoi
10.1038/sj.gt.3300746subject
Has Abstractpub_date
1998-10-01 00:00:00pages
1434-40issue
10eissn
0969-7128issn
1476-5462journal_volume
5pub_type
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