THE RELATIONSHIP OF LYMPHOPENIA PRODUCTION AND LYMPHOCYTE AGGLUTINATING AND CYTOTOXIC ANTIBODY TITERS TO THE IMMUNOSUPPRESSIVE POTENCY OF HETEROLOGOUS ANTILYMPHOCYTE PLASMA

Abstract

The findings presented here indicate that the ability of a heterologous antilymphocyte plasma to depress immune responses is related, at least in part, to factors other than its content of agglutinating and cytotoxic antibodies directed against lymphocytes. In addition, immunosuppresive potency could not be correlated with the degree of lymphopenia which the plasma preparation was capable of producing.