TITLE

Lentiviral vectors pseudotyped with minimal filovirus envelopes increased gene transfer in murine lung

AUTHOR(S)
Fe Medina, Maria; Kobinger, Gary P.; Rux, John; Gasmi, Mehdi; Looney, David J.; Bates, Paul; Wilson, James M.
PUB. DATE
November 2003
SOURCE
Molecular Therapy;Nov2003, Vol. 8 Issue 5, p777
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A human immunodeficiency virus (HIV)-based vector pseudotyped with the Ebola Zaire (EboZ) viral envelope glycoprotein (GP) was recently shown to transduce murine airway epithelia cells in vivo. In this study, the vector was further redesigned to improve gene transfer and also to increase safety. We used mutant EboZ envelopes for pseudotyping, which resulted in higher titers and increased transduction of airway cells in vivo compared to vectors pseudotyped with wild-type EboZ GP. As these envelopes lack regions associated with toxicity of the wild-type EboZ GP, they should also be safer to use for pseudotyping of lentiviral vectors. In addition, lentiviral vectors were created based on feline immunodeficiency virus and shown to have similar efficiency of transduction compared to HIV-based vectors. The creation of lentiviral vectors with highly engineered EboZ envelopes improved the performance of the system and should also increase its safety since only minimal regions of the EboZ envelope, which lack the toxic domain, are used.
ACCESSION #
11253945

 

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