In vivo replication-deficient adenovirus vector-mediated transduction of the cytosine deaminase gene sensitizes glioma cells to 5-fluorocytosine Academic Article uri icon


MeSH Major

  • Adenoviruses, Human
  • Defective Viruses
  • Flucytosine
  • Genetic Vectors
  • Gliosarcoma
  • Nucleoside Deaminases
  • Transduction, Genetic


  • Viral vector-mediated transfer of chemosensitization genes represents a promising new approach to the treatment of cancer. Previous reports have demonstrated that transfection of the bacterial cytosine deaminase (cd) gene into mammalian cells can sensitize them to the otherwise nontoxic nucleoside, 5-fluorocytosine (5-FC). We now report that a replication-deficient adenovirus vector that transduces the cd gene (Ad.CMV-cd) highly sensitizes 9L gliosarcoma cells to 5-FC, and that gene transduction is associated with a potent bystander effect that is not dependent on direct cell-to-cell contact. Stereotactic injection of Ad.CMV-cd into established rat gliomas, followed by systemic administration of 5-FC in vivo, results in prolongation of survival.

publication date

  • April 10, 1996



  • Academic Article



  • eng

PubMed ID

  • 8919593

Additional Document Info

start page

  • 713

end page

  • 20


  • 7


  • 6