Abstract：
:Alphavirus vectors based on Sindbis virus and Semliki Forest virus (SFV) were characterized as potential gene transfer vectors. Initial studies were performed using vectors engineered to transfer either lacZ or green fluorescent protein (GFP). High levels of gene transfer were achieved in human primary fibroblasts, BHK and 293T cells, with low levels of transduction observed in more than 20 other target cells. Alphavirus-based expression was generally very high, but transient in every cell type. Replication-competent alphavirus was never detected in SFV preparations but could be produced by Sindbis-based vectors at a frequency of up to 3 x 10(-3) infectious units per ml. We constructed a human clotting factor IX (hFIX) cDNA-containing Sindbis virus and compared it with hFIX cDNA-harboring adenoviral and retroviral vectors. In most cases, hFIX levels obtained with Sindbis vector were initially at least an order of magnitude higher than those obtained with other viral vectors. These data demonstrate that alphavirus vectors compare favorably with adenovirus vectors as systems to promote high-level transient gene expression and should be considered as an alternative vector for gene transfer and potential gene therapy studies.
journal_name
Gene Therjournal_title
Gene therapyauthors
Wahlfors JJ,Zullo SA,Loimas S,Nelson DM,Morgan RAdoi
10.1038/sj.gt.3301122keywords:
subject
Has Abstractpub_date
2000-03-01 00:00:00pages
472-80issue
6eissn
0969-7128issn
1476-5462journal_volume
7pub_type
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