title: Effect of antitumor agents on sarcoma-180 tumor cells transplanted to liver, kidney, and lung.
abstract: The survival time of animals, inhibition of the incorporation of thymidine-[6-3H] (3H-TdR) into DNA, and histopathological observation were made after the injection of Mitomycin-C, Bleomycin, cyclophosphamide, Daunomycin, Actinomycin-D, or 5-fluorouracil into mice transplanted with sarcoma-180 to their liver, kidney, and lung. The most prolonged survival time was obtained by the injection with cyclophosphamide and a moderate prolonged survival by Bleomycin and Actinomycin-D. In the case of 5-fluorouracil and Daunomycin, there were extreme variations in the survival time depending on the site of tumor growth. Cyclophosphamide and 5-fluorouracil showed greater and longer lasting inhibition of the incorporation of 3H-TdR into DNA of the tumor tissue, whereas the remaining agents caused transient inhibition on the tumor tissue. Inhibitory ratio and duration of the incorporation of 3H-TdR into DNA of normal site of the tissue of tumor-bearing organ were found to be more increased or almost the same compared with those of the tumor tissue. The most rapid recovery of the incorporation of 3H-TdR into DNA was observed in the small intestine among various organs and tumor in any treatment groups. From the histopathological observation, the degree of tumor cell damage by the agent was almost in agreement with inhibition of the incorporation of 3H-TdR up to 72 hr after the treatment.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001761:Bleomycin / Q000627:therapeutic use; D003520:Cyclophosphamide / Q000627:therapeutic use; D003609:Dactinomycin / Q000627:therapeutic use; D003630:Daunorubicin / Q000627:therapeutic use; D005472:Fluorouracil / Q000627:therapeutic use; D007680:Kidney Neoplasms / Q000188:drug therapy*; D008113:Liver Neoplasms / Q000188:drug therapy*; D008175:Lung Neoplasms / Q000188:drug therapy*; D008297:Male; D051379:Mice; D008937:Mitomycins / Q000627:therapeutic use; D009368:Neoplasm Transplantation; D012510:Sarcoma 180 / Q000188:drug therapy*
chemical_list: D000970:Antineoplastic Agents; D008937:Mitomycins; D001761:Bleomycin; D003609:Dactinomycin; D003520:Cyclophosphamide; D005472:Fluorouracil; D003630:Daunorubicin