Summary
Treatment in vitro of human peripheral blood lymphocytes (PBL) with ConA induced the generation of suppressor cells which inhibited T cell blastogenic response to ConA and of allogeneic response in the mixed lymphocyte reaction (MLR). Treatment of PBL with 4-hydroperoxycyclophosphamide (4-HPCy) before incubation with ConA markedly decreased the generation of suppressor cells by ConA. The effect of 4-HPCy on generation of suppressor cells was more pronounced in the test of ConA stimulation than in the MLR. Treatment with 4-HPCy had no effect on suppressor cells already induced as shown by incubation of PBL with 4-HPCy after incubation with ConA.
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Klajman, A., Drucker, I., Manor, Y. et al. In vitro effects of 4-hydroperoxycyclophosphamide on concanavalin A-induced human suppressor T cells. Cancer Immunol Immunother 18, 113–117 (1984). https://doi.org/10.1007/BF00205744
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DOI: https://doi.org/10.1007/BF00205744