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Retroviral transduction of CD34-enriched hematopoietic progenitor cells under serum-free conditions
Retroviral transduction of CD34-enriched hematopoietic progenitor cells under serum-free conditions HUMAN GENE THERAPY Sekhar, M., Kotani, H., Doren, S., Agarwal, R., McGarrity, G., DUNBAR, C. E. 1996; 7 (1): 33-38Abstract
The use of defined or serum-free culture conditions during retroviral transduction of hematopoietic cells would be desirable for standardization and safety reasons, as well as potentially allowing greater expansion of progenitor cells. Retroviral vector supernatants were concentrated and purified via tangential flow filtration polyethylene glycol (PEG)-precipitation, and ultracentrifugation, allowing serum-free transductions at standard multiplicities of infection (moi). Protein content of transductions using these concentrated vectors was 5-6 logs lower than in standard transductions. Transduction efficiencies of these concentrated vector preparations added back to serum-free or serum-containing media were equivalent to standard retroviral supernatant transductions of CD34-enriched progenitors. Absolute progenitor (CFU-C) numbers at the end of transduction were higher in serum-free + concentrated virus transductions, as opposed to transductions in standard vector supernatants containing fetal calf serum.
View details for Web of Science ID A1996UA84500004
View details for PubMedID 8825866