FMEV vectors: both retroviral long terminal repeat and leader are important for high expression in transduced hematopoietic cells (original) (raw)

Gene Therapy volume 5, pages 1575–1579 (1998)Cite this article

Abstract

FMEV retroviral vectors combine the long terminal repeat of Friend mink cell focus-forming viruses with the 5′ untranslated leader region of the murine embryonic stem cells virus. These modules were connected to achieve high transgene expression in hematopoietic progenitor and stem cells. Here, we report the cloning of safety-improved and versatile FMEV vectors allowing module-wise exchange of crucial elements for comparative studies. By transfer and expression of four different marker genes (neomycin phosphotransferase, lacZ, enhanced green fluorescent protein and truncated low affinity nerve growth factor receptor), we formally demonstrate that both the long terminal repeat and the leader contribute to the high expression of FMEV in transduced hematopoietic cells. Most prominent are the data recorded in the absence of selection in myelo-erythroid progenitor cells. Here, FMEV vectors mediate up to two orders of magnitude increased transgene expression levels when compared with vectors based on the Moloney murine leukemia virus.

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Authors and Affiliations

  1. Heinrich-Pette-Institute for Experimental Virology and Immunology, Hamburg, Germany
    M Hildinger, J John, W Ostertag & C Baum
  2. EUFETS GmbH, Idar-Oberstein, Germany
    H-G Eckert & AJ Schilz

Authors

  1. M Hildinger
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  2. H-G Eckert
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  3. AJ Schilz
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  4. J John
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  5. W Ostertag
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  6. C Baum
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Hildinger, M., Eckert, HG., Schilz, A. et al. FMEV vectors: both retroviral long terminal repeat and leader are important for high expression in transduced hematopoietic cells.Gene Ther 5, 1575–1579 (1998). https://doi.org/10.1038/sj.gt.3300759

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