| Title | Cell type-specific targeting with surface-engineered lentiviral vectors co-displaying OKT3 antibody and fusogenic molecule. | | Author(s) | Yang H, Joo KI, Ziegler L, Wang P | | Institution | Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, CA 90089, USA. | | Source | Pharm Res 2009 Jun; 26(6):1432-45. | | MeSH | Animals
Cells, Cultured
Female
Gene Expression
Gene Therapy
Gene Transfer Techniques
Genes, Reporter
Genetic Vectors
Humans
Jurkat Cells
Lentivirus
Luciferases, Firefly
Mice
Muromonab-CD3
T-Lymphocytes
Transduction, Genetic
| | Abstract | PURPOSE: The purpose of this study was to investigate the potential of a T-cell-related targeting method using a lentiviral vector-based gene delivery system.
MATERIALS AND METHODS: A lentiviral vector system was constructed by co-incorporating an anti-CD3 antibody (OKT3) and a fusogen into individual viral particles. The incorporation of OKT3 and fusogen was analyzed using confocal microscopy and the in vitro transduction efficiency was evaluated using flow cytometry. Blocking reagents (ammonium chloride (NH(4)Cl) and soluble OKT3 antibody) were added into vector supernatants during transduction to study the mechanism of this two-molecule targeting strategy. To demonstrate the ability of targeted transduction in vivo, Jurkat.CD3 cells were xenografted subcutaneously into the right flank of each mouse and the lentiviral vector was injected subcutaneously on both sides of each mouse 8 h post-injection. Subsequently, the reporter gene (firefly luciferase) expression was monitored using a noninvasive bioluminescence imaging system.
RESULTS: By co-displaying OKT3 and fusogen on the single lentiviral surface, we could achieve targeted delivery of genes to CD3-positive T-cells both in vitro and in vivo.
CONCLUSIONS: These results suggest the potential utility of this engineered lentiviral system as a new tool for cell type-directed gene delivery. | | Language | eng | | Pub Type(s) | Journal Article
Research Support, N.I.H., Extramural
| | PubMed ID | 19259792 |
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