[Establishment and characterization of 3 human cell lines derived from intracerebral metastatic tumors].

Twelve human tumors were cultivated in vitro by the trypsinization technique and 3 cell lines were established. Each of these 3 lines showed individual characteristics which were maintained during passages. After inoculation into nude mice, 2 lines induced tumors which possessed the histologic features of the original human tumors (melanoma and carcinoma of stomach), the other line derived from a breast carcinoma was rejected.