the carcinomas were far more active than the sarcomas but all the malignant tumours produced enzymes which were capable of causing collagenolysis in vitro . collagenolytic enzymes were recovered from extracts of neoplastic cells from long-term culture , from the media in which these cells were cultured , from the media of mixed cell cultures ( neoplastic , stromal and inflammatory cells from minced tumours ) , and from normal fibroblasts cultures .
C1261473
sarcomas
C0597032
neoplastic cells