Abstract
Cytotoxic T lymphocyte (CTL) clones against adenovirus type 5 (Ad5) early region 1 (E1)-transformed cells were generated in C57BL/6 (B6) mice. A defined peptide encoded by Ad5 E1A is the target structure for H-2Db-restricted CTLs. Upon intravenous injection into B6 nude mice bearing Ad5 E1-induced tumors, these CTLs, if combined with recombinant IL-2, destroy subcutaneous tumor masses up to 10 cm3. The in vivo action of CTLs is highly specific, and long-term "memory" persists in treated nude mice months after tumor regression. Our data show an important role for CTLs directed against a viral nuclear oncogene product in tumor eradication.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenoviridae Infections / immunology*
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Adenoviridae Infections / therapy
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Adenovirus Early Proteins
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Amino Acid Sequence
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Animals
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Antigens, Viral, Tumor / immunology*
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Cells, Cultured
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Clone Cells
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Cytotoxicity, Immunologic*
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DNA Probes
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Immunotherapy*
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Killer Cells, Natural / immunology
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Mice
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Mice, Inbred BALB C
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Mice, Inbred C57BL
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Mice, Inbred Strains
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Mice, Nude
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Molecular Sequence Data
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Neoplasms, Experimental / immunology*
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Neoplasms, Experimental / therapy
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Neoplasms, Experimental / ultrastructure
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Oncogene Proteins, Viral / genetics
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Oncogene Proteins, Viral / immunology*
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Peptide Fragments / chemical synthesis
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T-Lymphocytes, Cytotoxic / immunology*
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T-Lymphocytes, Cytotoxic / transplantation
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T-Lymphocytes, Cytotoxic / ultrastructure
Substances
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Adenovirus Early Proteins
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Antigens, Viral, Tumor
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DNA Probes
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Oncogene Proteins, Viral
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Peptide Fragments