title: Heterogeneity of human adenocarcinomas of the colon and the stomach as regards sensitivity to cytostatic drugs.
abstract: In the present paper a test model was used to examine if human adenocarcinomas of the colon and the stomach are heterogenous as regards the sensitivity to cytosine arabinoside, melphalan, vinblastine sulphate, amethopterin and 5-fluorouracil in vitro. The effects of the five drugs were measured as the differences in incorporation of tritiated thymidine and deoxyuridine in drug-containing tubes and control tubes. It was found, that different parts of eleven colon and five stomach cancers differ significantly in their sensitivity to the same cytostatic treatment in vitro.
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy*; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D003110:Colonic Neoplasms / Q000188:drug therapy*; D003561:Cytarabine / Q000627:therapeutic use; D005472:Fluorouracil / Q000627:therapeutic use; D006801:Humans; D008558:Melphalan / Q000627:therapeutic use; D008727:Methotrexate / Q000627:therapeutic use; D013274:Stomach Neoplasms / Q000188:drug therapy*; D014747:Vinblastine / Q000627:therapeutic use
chemical_list: D000970:Antineoplastic Agents; D003561:Cytarabine; D014747:Vinblastine; D008558:Melphalan; D005472:Fluorouracil; D008727:Methotrexate