Journal
NATURE PROTOCOLS
Volume 2, Issue 12, Pages 3146-3152Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2007.460
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The Sleeping Beauty (SB) transposon is an integrative nonviral plasmid system. Here, we describe a protocol for SB-mediated transgene delivery using DNA/polyethyleneimine (PEI) complexes for long-term expression in mouse lungs. This protocol can be used for delivery of any plasmid-based vector system to mouse lungs, although long-term transgene expression will be obtained only when using the SB transposon or other integrating vector systems. The stages of this protocol are preparation of DNA-PEI complexes and injection of the complexes into the lateral tail vein of mice. We also provide protocols for assessing transgene expression using in vivo bioluminescence imaging and enzymatic assay of lung homogenates. The procedure can be completed within 24 h, starting from preparation of DNA-PEI complexes to analysis of transient transgene expression.
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