title: [Preclinical screening of chemotherapeutic and endocrine agents using human tumor xenografts--nude mouse system].
abstract: Although newly developed antitumor agents had been screened using cultured human cell lines and rodent tumor systems, it was apparent that the positive antitumor activity of the agents on these experimental tumors is not a sufficient but a necessary condition to elucidate the antitumor activity on clinical human cancers. We have clarified that the chemosensitivity of human gastric, breast colon carcinoma xenografts could reproduce the essentially identical chemosensitivity of clinical carcinomas when the maximum tolerable doses of the conventionally available agents were administered to tumor bearing nude mice, and human breast carcinoma xenografts had a similar estrogen dependency and endocrine sensitivity to clinical human breast cancer. These findings indicated that the human tumor xenografts--nude mouse is an appropriate model to predict the clinical antitumor activity of newly developed antitumor agents.
authors.affiliation: Dept. of Surgery, School of Medicine, Keio University.
authors.forename: T
authors.initials: T
authors.lastname: Kubota
authors.forename: K
authors.initials: K
authors.lastname: Ishibiki
authors.forename: O
authors.initials: O
authors.lastname: Abe
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000473:pathology; D003110:Colonic Neoplasms / Q000188:drug therapy* / Q000473:pathology; D004354:Drug Screening Assays, Antitumor; D004967:Estrogens / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D009376:Neoplasms, Hormone-Dependent / Q000188:drug therapy; D013274:Stomach Neoplasms / Q000188:drug therapy* / Q000473:pathology
chemical_list: D000970:Antineoplastic Agents; D004967:Estrogens