Retroviral vector targeting to melanoma cells by single-chain antibody incorporation in envelope

F. Martin, J. Kupsch, Y. Takeuchi, S. Russell, F. L. Cosset, M. Collins

Research output: Contribution to journalArticle

51 Scopus citations

Abstract

Two strategies for targeting recombinant retroviruses to melanoma cells were compared. One was to extend the tropism of an ecotropic envelope to human melanoma cells, the other was to enhance the tropism of an amphotropic envelope for melanoma cells. Chimeric retroviral envelopes, incorporating a single-chain antibody (ScFv) directed against high-molecular-weight melanoma-associated antigen (HMWMAA) at the amino terminus are correctly processed and incorporated into virions. ScFv-ecotropic envelope chimeras allow specific, but low-titer, targeting of HMWMAA-positive cells, when co-expressed with ecotropic envelopes. ScFv-amphotropic envelope chimeras bind specifically to HMWMAA-positive cells and allow preferential infection at high titer.

Original languageEnglish (US)
Pages (from-to)737-746
Number of pages10
JournalHuman gene therapy
Volume9
Issue number5
DOIs
StatePublished - Mar 20 1998

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Genetics

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