Immune responses of DBA/2 mice bearing melanoma tumors: Cell-mediated immune responses after challenge with vaccinia virus

Jacquelyn A. Byrne, M. Soloski, J. A. Holowczak

Research output: Contribution to journalArticle

Abstract

Cell-mediated immune responses in DBA/2 mice bearing melanoma tumors (TB-mice) were measured and compared to similar responses in mice without tumors (C-mice). Splenic lymphocytes from TB-mice had a reduced capacity to respond to both B and T-cell mitogens, but TB-mice responded to infection with vaccinia virus by developing a virus-specific cytotoxic T-cell response equal to that measured with splenic effectors prepared from virus-infected C-mice. NK-cell activity, as measured by the in vitro lysis of YAC-1 targets by splenic effectors, was significantly depressed in TB-mice but, after infection of the animals with vaccinia virus, was restored to levels equal to that measured with splenic effectors prepared from C-mice. Doses of vaccinia virus, strain WR which elicited vaccinia-virus-specific cytotoxic T cells or stimulated NK-cell activity, failed to elicit or stimulate cytotoxic effectors specific for S91-melanoma tumor cells.

Original languageEnglish (US)
Pages (from-to)81-87
Number of pages7
JournalCancer Immunology Immunotherapy
Volume16
Issue number2
DOIs
StatePublished - Dec 1 1983

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Oncology
  • Cancer Research

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