Co-expression of MDR1 and HLA-B7 Genes in a Mammalian Cell Using a Retrovirus

Seong Min Lee, Kyoo Hyung Lee, Hag Dong Kim, Je Hwan Lee, Jung Shin Lee, Joon Kim

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Abstract

Using a retrovirus, foreign genes can be introduced into mammalian cells. The purpose of this study is to produce a retrovirus that can make the infected cells express two genes; the human multidrug resistance gene (MDR1) and the HLA-B7 gene, which is one of the major human histocompatlbility complex (MHC) class I genes. For the expression of these genes, the internal ribosome entry site (IRES) was used, which was derived from the encephalomyocarditis (EMC) virus. In order to produce retroviruses, a retroviral vector was transfected into a packaging cell line and the transfected cells were treated with vincristine, which is an anti-cancer drug and a substrate for the MDR1 gene product. This study revealed that two genes were incorporated into chromosomes of selected cells and expressed in the same cells. The production of the retrovirus was confirmed by the reverse transcription (RT)-PCR of the viral RNA. The retrovirus that was produced infected mouse fibroblast cells as well as the human U937. This study showed that packaging cells produced the retroviruses, which can infect the target cells. Once the conditions for the high infectivity of retrovirus into human cells are optimized, this virus will be used to infect hematopoietic stem cells to co-express MDR1 and HLA-B7 genes, and develop the lymphocytes that can be used for the immnogene therapy.

Original languageEnglish
Pages (from-to)176-181
Number of pages6
JournalJournal of Biochemistry and Molecular Biology
Volume34
Issue number2
Publication statusPublished - 2001 Mar 31

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Keywords

  • HLA-B7
  • Hematopoietic stem cell
  • MDR1
  • PA317
  • Retrovirus

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

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