Characterization of a third generation lentiviral vector pseudotyped with Nipah virus envelope proteins for endothelial cell transduction

S. R. Witting, P. Vallanda, A. L. Gamble

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Lentiviruses are becoming progressively more popular as gene therapy vectors due to their ability to integrate into quiescent cells and recent clinical trial successes. Directing these vectors to specific cell types and limiting off-target transduction in vivo remains a challenge. Replacing the viral envelope proteins responsible for cellular binding, or pseudotyping, remains a common method to improve lentiviral targeting. Here, we describe the development of a high titer, third generation lentiviral vector pseudotyped with Nipah virus fusion protein (NiV-F) and attachment protein (NiV-G). Critical to high titers was truncation of the cytoplasmic domains of both NiV-F and NiV-G. As known targets of wild-type Nipah virus, primary endothelial cells are shown to be effectively transduced by the Nipah pseudotype. In contrast, human CD34+ hematopoietic progenitors were not significantly transduced. Additionally, the Nipah pseudotype has increased stability in human serum compared with vesicular stomatitis virus pseudotyped lentivirus. These findings suggest that the use of Nipah virus envelope proteins in third generation lentiviral vectors would be a valuable tool for gene delivery targeted to endothelial cells.

Original languageEnglish (US)
Pages (from-to)997-1005
Number of pages9
JournalGene Therapy
Volume20
Issue number10
DOIs
StatePublished - May 24 2013

Keywords

  • endothelial cell
  • lentivirus
  • Nipah virus
  • pseudotype

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Genetics

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