Spleen lymphocytes and T cells were stimulated by concanavalin A in the presence of various concentrations of human low-density lipoproteins (LDL). The proliferative responses were measured by [14C]thymidine incorporation. Low LDL doses (5-50 microgram/ml) significantly enhanced the stimulation of splenic lymphocytes and T cells. Further, LDL had the capacity to partially relieve the suppression produced by supraoptimal doses of concanavalin A.
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Waelti et al. (1981) studied this question.