[Aprotinin and induction of sarcoma with methylcholanthrene in rats].

Considering the immunodepressive properties of aprotinine, the influence of this protease inhibitor on the induction of methylcholanthrene sarcoma in rats has been investigated. The results of the investigation showed that aprotinine failed to modify the experimental tumour induction process. This observation provides further confirmation that immunodepression is not a position to favour the growth of a tumour as a result of chemically induced oncogenesis.