Development of a high-titer retrovirus producer cell line capable of gene transfer into rhesus monkey hematopoietic stem cells
- PMID: 2339117
- PMCID: PMC53978
- DOI: 10.1073/pnas.87.10.3738
Development of a high-titer retrovirus producer cell line capable of gene transfer into rhesus monkey hematopoietic stem cells
Abstract
Retroviral-mediated gene transfer into primitive hematopoietic cells has been difficult to achieve in large-animal models. We have developed an amphotropic producer clone that generates greater than 10(10) recombinant retroviral particles (colony-forming units) per ml of culture medium. Autologous rhesus monkey bone-marrow cells were cocultured with either high (2 x 10(10) colony-forming units/ml) or low (5 x 10(6) colony-forming units/ml) titer producer clones for 4-6 days and reinfused into sublethally irradiated animals. The proviral genome was detected in blood and bone-marrow cells from all three animals reconstituted with cells cocultured with the high-titer producer cells. In contrast, three animals reconstituted with bone marrow cocultured with the low-titer producer clone exhibited no evidence of gene transfer.
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