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Retroviral vectors for the transduction of the PML-RARalpha fusion product of acute promyelocytic leukemia.

Lavau, C; Heard, JM; Danos, O; Dejean, A; (1996) Retroviral vectors for the transduction of the PML-RARalpha fusion product of acute promyelocytic leukemia. Exp Hematol , 24 (4) pp. 544-551.

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Abstract

We have designed several retroviral constructs to transduce the PML-RA Ralpha fusion product of human acute promyelocytic leukemia. Our aim to generate high-titer stable vector-producing cell lines was hindered by a toxic effect of PML-RARalpha expression on packaging cells. To circumvent this, we tested retroviral vectors expressing the transgene from several internal promoters including inducible and myelospecific promoters. To compare efficiency of these constructs in their ability to generate protein expression in the appropriate target cells and optimal viral titers, we used the BOSC23 transient packaging cell line. We found that the direct-oriented vector did not ensure tissue-specificity of PML-RARalpha expression, while the reverse-oriented retroviral vector did. The latter construct, however, failed to generate high-titer recombinant virus. This study exemplifies the unpredictable behavior of retroviral constructs and the superiority of transient systems for transduction of a toxic product.

Type: Article
Title: Retroviral vectors for the transduction of the PML-RARalpha fusion product of acute promyelocytic leukemia.
Location: Netherlands
Keywords: 3T3 Cells, Animals, Gene Expression Regulation, Viral, Genetic Vectors, Humans, Leukemia, Promyelocytic, Acute, Mice, Neoplasm Proteins, Oncogene Proteins, Fusion, Promoter Regions, Genetic, Retroviridae, Transduction, Genetic
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute > Research Department of Haematology
URI: http://discovery.ucl.ac.uk/id/eprint/90905
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