Abstract：
:Experimental protocols have been devised to deliniate the importance of T-cell subsets in immunity to Moloney sarcoma virus-induced tumours using the surface antigens L3T4 and Lyt-2 as markers of helper and cytotoxic cells, respectively. Because the monoclonal antibodies used have been shown to deplete T-cell subsets in vivo, we have been able to study the role of L3T4+ and Lyt-2+ T cells in the primary response to MSV for the first time. The results clearly show that L3T4+ T cells are the most important in resistance to the viral challenge. Mice injected with monoclonal antibodies to L3T4 grew large tumours following injection of a viral innoculum that was resisted by untreated mice or mice injected with monoclonal antibodies to Lyt-2. The same monoclonal antibodies were used to remove primed L3T4+ or Lyt-2+ T cells in vitro in adoptive transfer experiments. Normal unirradiated mice were protected from a challenge of WR19L lymphoma cells when they were given primed spleen and lymph node cells intraperitoneally. Depletion of Lyt-2+ T cells before adoptive transfer abolished this protective effect. Depletion of L3T4+ cells had no effect on the ability of primed cells to transfer immunity. Thus, while L3T4+ T cells are required for the primary rejection of MSV, only primed Lyt-2+ T cells are able to transfer resistance to a secondary challenge of lymphoma cells.
journal_name
Immunologyjournal_title
Immunologyauthors
Bateman WJ,Jenkinson EJ,Owen JJsubject
Has Abstractpub_date
1987-07-01 00:00:00pages
317-20issue
3eissn
0019-2805issn
1365-2567journal_volume
61pub_type
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