Immunosurveillance of Virus-induced Tumors

  1. C.J.M. Melief*,
  2. W.L.E. Vasmel*,
  3. R. Offringa,
  4. E.J.A.M. Sijts*,
  5. E.A. Matthews*,
  6. P.J. Peters,
  7. R.H. Meloen§,
  8. A.J. van der Eb, and
  9. W.M. Kast*
  1. *Division of Immunology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Huis, 1066 CX Amsterdam; Sylvius Laboratory, University of Leiden, Leiden; Laboratory of Cell Biology, Center for Electron Microscopy, University of Utrecht, Utrecht; §Central Veterinary Institute, Lelystad, The Netherlands

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Excerpt

T-cell immunity is of paramount importance in the defense against viruses and virus-induced tumors (Klein 1973; Zinkernagel and Doherty 1979; Doherty 1985; Kast et al. 1986; Zijlstra and Melief 1986). Virus-induced tumors can evade T-cell immunity by down-regulation of class I major histocompatibility complex (MHC) expression (Bernards et al. 1983; Schrier et al. 1983; Hui et al. 1984) or by failure to express viral antigens (Green 1983; van der Hoorn et al. 1985; Vas-mel et al. 1989). The relevance of class I MHC down-regulation in evasion of T-cell immunity by adenovirus type 12 (Adl2) early region 1 (El)-induced tumors (Bernards et al. 1983; Schrier et al. 1983) is supported by our recent demonstration of eradication of large Ad5 E1-induced tumors, without down-regulated class I MHC expression, by cloned E1-specific cytotoxic T lymphocytes (CTL) (Kast et al. 1989). In this paper, we review the evidence from our laboratory for the remarkable...

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