Lentivirally generated eGFP‐transgenic rats allow efficient cell tracking in vivo
- 25 May 2004
- Vol. 39 (2), 94-99
- https://doi.org/10.1002/gene.20037
Abstract
Here we describe the efficient generation of eGFP-transgenic rats using a lentiviral approach. Analysis of the founder generation demonstrated that 46% of the offspring had stably integrated the provirus into the genome and of those 92% expressed eGFP in all blood-derived leukocytes. In contrast to their offspring, all founder rats were mosaic with regard to eGFP-expression, suggesting delayed viral transduction after injection. The expression level of eGFP in the F1 generation is influenced by and segregates with the site of proviral integration. Interestingly, a single copy of the transgene is sufficient for reliable detection by flow cytometry, irrespective of the leukocyte subtype analyzed. Adoptive transfer of purified CD4+ T-lymphocytes from transgenic rats and subsequent reisolation from various organs further demonstrated that expression of the lentiviral transgene is maintained in a foreign host and therefore allows for efficient tracking of transferred cells. Taken together, lentivirally generated eGFP-transgenic rats are a powerful tool for various applications in immunology and presumably also many other fields. genesis 39:94–99, 2004.Keywords
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