• Title/Summary/Keyword: 1-8Dgene

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Adoptive Transfer of Colon Cancer Derived Peptide-specific CD8+ T Cells in HHD Mice (HHD Mice를 이용한 대장암세포유래 펩타이드 특이적 CD8+ T 세포의 입양전이)

  • Jung, Hun-Soon;Ahn, In-Sook;Do, Hyung-Ki;Lemonnier, Francois A.;Tirosh, Boaz;Tzehoval, Esther;Vadai, Ezra;Eisenbach, Lea;Do, Myoung-Sool
    • IMMUNE NETWORK
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    • v.4 no.1
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    • pp.31-37
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    • 2004
  • Background: 1-8D gene is a member of human 1-8 interferon inducible gene family and is shown to be overexpressed in fresh colon cancer tissues. Three peptides 1-6, 3-5 and 3-7 derived from 1-8D gene were shown to have immunogenicity against colon cancer. Methods: To study tumor immunotherapy of these peptides we established an adoptive transfer model. $D^{b-/-}{\times}{\beta}2$ microglobulin (${\beta}2m$) null mice transgenic for a chimeric HLA-A2.1/$D^b-{\beta}2m$ single chain (HHD mice) were immunized with irradiated peptide-loaded RMA-S/HHD/B7.1 transfectants. Spleens were removed after last immunization, and splenocytes were re-stimulated in vitro. Lymphocytes from vaccinated HHD mice were transferred together with IL-2 to the tumor bearing nude mice that were challenged S.C. with the HCT/HHD/B7 colon carcinoma cell line that was found to grow in these mice. Results: Peptide 3-5 was found to be highly effective in CTL activity. Adoptively transferred anti-peptide 3-5 cytolytic T lymphocytes caused significant retardation in tumor growth. Conclusion: This study shows that peptide 3-5 can be the most effective candidate for the vaccine of adoptive immunotherapy against colon cancer.