Abstract
Summary
Normal xenogeneic (heterolo-gous) sera from adult animals are toxic or do not support the growth of the peripheral lymphocyte of rabbits in vitro. Fetal bovine or calf sera are able to maintain rabbit lymphocytes satisfactorily in culture. The effects of antisera to rabbit serum proteins produced in adult sheep on rabbit lymphocytes in vitro can be studied using cultures enriched with calf serum. The sheep sera must be decomplemented and absorbed with rabbit lymphocytes prior to the addition of these sera to lymphocyte cultures.
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