Document Detail


Detection of a unique antigen on radiation leukemia virus-induced leukemia B6RV2.
MedLine Citation:
PMID:  6091870     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Radiation leukemia virus-induced leukemia of a male C57BL/6 mouse, B6RV2, is immunogenic to female BALB/c X C57BL/6 F1 mice. In these mice, B6RV2 tumors regressed after initial growth, and after tumor regression the mice were resistant to repeated inocula of up to 10(8) B6RV2 cells. Serum from these mice reacted with B6RV2 in mixed hemadsorption or protein A assays, and absorption analysis indicated that the antigen was restricted to B6RV2; it could not be detected in normal thymocytes or spleen concanavalin A blasts from different inbred strains, nor in 16 C57BL/6 or BALB/c leukemias. Spleen cells from mice in which the tumor had regressed were cytotoxic to B6RV2 after in vitro stimulation with B6RV2, as shown by 51-chromium release assay. This cytotoxicity was eliminated by pretreatment of the cells with anti-Thy-1.2, anti-Lyt-2.2, anti-Lyt-3.2, and complement, indicating that the effector cells were T-cells. The specificity of T-cell killing of B6RV2 was examined by competitive inhibition assays with unlabeled cells; only B6RV2 inhibited killing, while eight other C57BL/6 leukemias did not inhibit. Thus, the antigen on B6RV2 defined serologically and by cytotoxic T-cells is a unique antigen. However, it was not revealed by antibody-blocking test whether the unique determinant defined serologically was related to that recognized by T-cells; B6RV2 antiserum did not block lytic activity in the absence of added complement, irrespective of whether the target cells were untreated or anti-H-2b-treated B6RV2. H-2Kb antisera, but not H-2Db antisera, blocked lysis. This indicated that the H-2Kb molecule was exclusively involved in recognition of B6RV2 by cytotoxic T-cell.
Authors:
E Nakayama; A Uenaka; E Stockert; Y Obata
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Cancer research     Volume:  44     ISSN:  0008-5472     ISO Abbreviation:  Cancer Res.     Publication Date:  1984 Nov 
Date Detail:
Created Date:  1984-11-28     Completed Date:  1984-11-28     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  2984705R     Medline TA:  Cancer Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  5138-44     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Antigens, Neoplasm / analysis*
Cell Line
Crosses, Genetic
Cytotoxicity, Immunologic
Female
H-2 Antigens / analysis
Leukemia Virus, Murine / immunology*
Leukemia, Radiation-Induced / immunology,  microbiology*
Male
Mice
Mice, Inbred BALB C
Mice, Inbred C57BL
Mice, Inbred Strains
Sex Factors
T-Lymphocytes / immunology
Grant Support
ID/Acronym/Agency:
CA 16599/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Antigens, Neoplasm; 0/H-2 Antigens

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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