Interaction between T cells and murine acquired immunodeficiency virus superantigen: effect of second signal on T cell reactivity to the MAIDS virus superantigen.
A murine acquired immunodeficiency (MAIDS) virus transformed B cell line, B6-1710, was shown to express superantigen activity and stimulate T cell hybridomas to produce IL-2. However, T cell clones and lines from which B6-1710 reactive hybridomas were established failed to proliferate upon stimulation with B6-1710, while B6-1710 cells were capable of presenting bacterial superantigen to stimulate both T cell hybridomas and clones. Proliferative response of T cells to MAIDS virus superantigen could be detected by the addition of the pharmacological agent phorbol myristate acetate (PMA). Thus, B6-1710 seems to lack a stimulatory activity necessary for the proliferative response of T cells to the MAIDS viral superantigen. In the analysis of the response of naive splenic T cells to the MAIDS superantigen, T cells recovered from a culture stimulated with B6-1710 cells in the presence of PMA showed no dominant TCR V beta chain usage, while cells recovered from a culture stimulated with B6-1710 alone were dominated by T cells expressing V beta 5, 11, and 12 TCR chains. These results suggest that T cells bearing a majority of TCR V beta chains are capable of responding to B6-1710 superantigen. The avidity of interaction between T cells and viral superantigen may differ significantly among T cells and those T cells exhibiting weak interaction with MAIDS virus superantigen may require additional signals, such as PMA, for an in vitro proliferative response to B6-1710 cells.
Heise
M
M
Department of Pathology and Medicine, Washington University School of Medicine, St Louis, MO 63110.
Chow
K
K
Kanagawa
O
O
D000818:Animals; D000938:Antigen-Presenting Cells / Q000276:immunology; D000956:Antigens, Viral; D001402:B-Lymphocytes / Q000276:immunology; D002461:Cell Line, Transformed; D006825:Hybridomas / Q000276:immunology; D009052:Leukemia Virus, Murine / Q000276:immunology*; D008213:Lymphocyte Activation / Q000187:drug effects; D051379:Mice; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D016693:Receptors, Antigen, T-Cell, alpha-beta; D015398:Signal Transduction / Q000276:immunology; D013601:T-Lymphocytes / Q000187:drug effects / Q000276:immunology*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology
D000956:Antigens, Viral; D016693:Receptors, Antigen, T-Cell, alpha-beta; D013755:Tetradecanoylphorbol Acetate