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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Gene transfer into murine hematopoietic stem cells with helper-free foamy virus vectors.

Gene transfer into hematopoietic stem cells (HSCs) is an ideal treatment strategy for many genetic and hematologic diseases. However, progress has been limited by the low HSC transduction rates obtained with retroviral vectors based on murine leukemia viruses. This study examined the potential of vectors derived from the nonpathogenic human foamy virus (HFV) to transduce human CD34(+) cells and murine HSCs. More than 80% of human hematopoietic progenitors present in CD34(+) cell preparations derived from cord blood were transduced by a single overnight exposure to HFV vector stocks. Mice that received transduced bone marrow cells expressed the vector-encoded transgene long term in all major hematopoietic cell lineages and in over 50% of cells in some animals. Secondary bone marrow transplants and integration site analysis confirmed that gene transfer occurred at the stem cell level. Transgene silencing was not observed. Thus vectors based on foamy viruses represent a promising approach for HSC gene therapy. (Blood. 2001;98:604-609)[1]


  1. Gene transfer into murine hematopoietic stem cells with helper-free foamy virus vectors. Vassilopoulos, G., Trobridge, G., Josephson, N.C., Russell, D.W. Blood (2001) [Pubmed]
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