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Induction of tumor antigen-specific immunity using plasmid DNA immunization in mice

Academic Article
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Overview

authors

  • Tuting, T.
  • Gambotto, A.
  • DeLeo, A.
  • Lotze, M. T.
  • Robbins, Paul D.
  • Storkus, W. J.

publication date

  • January 1999

journal

  • Cancer Gene Therapy  Journal

abstract

  • We have evaluated the ability of bioballistic "gene gun" immunization of mice with plasmid DNA encoding clinically relevant tumor antigens to induce protective antitumor immunity. Mice immunized with plasmid cDNA encoding the cervical carcinoma-associated human papillomavirus 16-E7 gene product exhibited potent anti-E7-specific cytotoxic T lymphocytes and were protected completely against a subsequent challenge with the E7+ C3 sarcoma. Of perhaps greater clinical interest, genetic immunization using cDNA encoding the normal, germline-encoded murine melanosomal protein tyrosinase-related protein-2 (TRP-2) resulted in delayed outgrowth of TRP-2+ B16 melanoma in mice and was associated with an in vivo activation of TRP-2-specific cytotoxic T lymphocytes. Codelivery of plasmid cDNA encoding TRP-2 and the T helper 1-biasing cytokine murine interleukin-12 considerably enhanced the antitumor efficacy of these gene-based melanoma vaccines.

subject areas

  • Animals
  • CHO Cells
  • Cancer Vaccines
  • Cricetinae
  • Female
  • Genetic Therapy
  • Genetic Vectors
  • Humans
  • Interleukin-12
  • Intramolecular Oxidoreductases
  • Melanoma, Experimental
  • Mice
  • Mice, Inbred C57BL
  • Oncogene Proteins, Viral
  • Papillomavirus E7 Proteins
  • Plasmids
  • Sarcoma, Experimental
  • T-Lymphocytes, Cytotoxic
  • Time Factors
  • Tumor Cells, Cultured
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Research

keywords

  • DNA immunization
  • interleukin-12
  • melanoma
  • tumor-associated antigens
  • tyrosinase-related protein-2
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Identity

International Standard Serial Number (ISSN)

  • 0929-1903

Digital Object Identifier (DOI)

  • 10.1038/sj.cgt.7700020

PubMed ID

  • 10078966
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Additional Document Info

start page

  • 73

end page

  • 80

volume

  • 6

issue

  • 1

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