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

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Lavau, C; Heard, JM; Danos, O; Dejean, A

Published Date

  • March 1996

Published In

Volume / Issue

  • 24 / 4

Start / End Page

  • 544 - 551

PubMed ID

  • 8608805

Pubmed Central ID

  • 8608805

International Standard Serial Number (ISSN)

  • 0301-472X


  • eng

Conference Location

  • Netherlands