[The effect of donorspecific antigen type for active enhancement of renal-allografts in the histoincompatible inbred rats (author's transl)].

49 kidneys of male LBNF1-rats were transplanted into male Lewis-rats. BN-rats were used as a source of antigen. Control animals survived 16.1 +/- 1.8 days. 5 recipients were preteated with donorspecific living cells, 7 with semisoluble and 5 with low dosage of soluble antigen. The living cell-pretreatment showed the best effect for the active enhancement, the soluble antigen the least. The pretreatment with 6 mg protein/kg bw. caused the sensibilization of recipients. At the time of transplantation lymphcytotoxic antibody titers were detected in all recipients with pretreatment of living cells, but no titer in other groups. Renal allografts with elevated postopertive titer were rejected rapidly.