Abstract:
:Recombinant Autographa californica multiple nuclear polyhedrosis viruses (AcMNPV) have recently been shown to transduce mammalian cells in vitro. Since baculoviruses offer many advantages over viruses currently used in gene therapy, we have tested them for in vivo gene transfer by constructing a baculovirus bearing a nuclear targeted beta-galactosidase marker gene (LacZ) under a CMV promoter. Both rabbit aortic smooth muscle cells (RAASMC) and human ECV-304 cells were susceptible to LacZ-baculovirus transduction. Transgene expression was evaluated in vivo by applying 1 x 10(9) p.f.u. of LacZ-baculoviruses or LacZ-adenoviruses in a silastic collar placed around rabbit carotid arteries in the absence of contact with blood components. As a result, baculoviruses led to transgene expression in adventitial cells in rabbit carotid arteries with efficiency comparable to adenoviruses. The beta-galactosidase gene expression was transient staying at a high level for 1 week but disappearing at the 14 day time-point. The arterial structure and endothelium remained intact in the baculovirus-transduced arteries, but macrophage-specific immunostaining detected signs of inflammation comparable to adenoviruses. Baculoviruses are thus able to mediate transient gene transfer in vivo and may become useful tools for gene therapy.
journal_name
Gene Therjournal_title
Gene therapyauthors
Airenne KJ,Hiltunen MO,Turunen MP,Turunen AM,Laitinen OH,Kulomaa MS,Ylä-Herttuala Sdoi
10.1038/sj.gt.3301269keywords:
subject
Has Abstractpub_date
2000-09-01 00:00:00pages
1499-504issue
17eissn
0969-7128issn
1476-5462journal_volume
7pub_type
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