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Evidence for two functionally distinct cross-reactive tumor antigens associated with ultraviolet light and chemically induced tumors. [Mice; /sup 137/Cs]

Journal Article · · Transplantation; (United States)
OSTI ID:6722432
Experiments were conducted to determine the distribution and function of common tumor antigens shared by ultraviolet light (UV)-, benz(a)pyrene (BP)-, and methylcholanthrene (MCA)-induced tumors. When lymph node cells were removed from UV, BP, or MCA tumor-immune mice and held in tissue culture for 4 days, a population of cytotoxic T lymphocytes (CTLs) emerged that were capable of lysing a battery of different tumor targets. The data defined at least two different classes of common tumor antigens expressed by UV and chemically induced tumors. These antigenic determinants are functionally defined as the TATAs and the common TAAs. The shared TATA function in vivo as rejection antigens and are restricted to tumors induced by the same carcinogenic agent. In contrast, the common TAAs shared by UV and chemically induced tumors are not only recognized by CTLs but more importantly function as immunoregulatory determinants. The importance of these common tumor antigens in host-tumor interactions is discussed. (JMT)
Research Organization:
Univ. of Utah Medical Center, Salt Lake City
OSTI ID:
6722432
Journal Information:
Transplantation; (United States), Journal Name: Transplantation; (United States) Vol. 33:4; ISSN TRPLA
Country of Publication:
United States
Language:
English

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