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The Journal of Immunology, Vol 132, Issue 6 2783-2789, Copyright © 1984 by American Association of Immunologists
ARTICLES |
JS Cowdery and BJ Johlin
Spleen cells from DBA/2 mice that received a single feeding of 20 mg of ovalbumin (OVA) 7 days previously were specifically hyporesponsive to primary in vitro challenge with the thymic-dependent antigen TNP- polymerized ovalbumin (TNP-POL-OVA). The tolerance observed in spleen cells from OVA-fed animals was dependent upon OVA-specific T suppressor cells, because splenic T cells from OVA-fed mice suppressed the primary response to TNP-POL-OVA of cultures containing normal T and B cells. The tolerance and suppression was OVA specific, because spleen cells from OVA-fed animals responded well to other antigens (including TNP on another carrier), and splenic T cells from OVA-fed mice did not affect the response of normal T and B cells to sheep erythrocytes. These data confirm the existence of T suppressor cells after OVA feeding and provide a direct means of assaying their activity in a primary in vitro response.
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