title: Differential protection against cytotoxic chemotherapeutic effects on bone marrow CFUs by Wr-2721.
abstract: This paper reports on the ability of the radioprotector WR-2721 to protect bone marrow colony forming units from the cell kill of various cytotoxic chemotherapy agents including nitrogen mustard, cyclophosphamide, BCNU, cis-platinum, and 5-fluorouracil. The dose-modifying factors seen with these compounds ranged from 1.5 to 4.6. Protection by WR-2721 seems to be selective for the bone marrow endpoint, in that similar protection against EMT6/SF tumor cell kill was not seen with the same combination of the cytotoxic chemotherapy agents and WR-2721 as measured by regrowth delay. The implications of these data are discussed in the paper.
mesh_terms: D004999:Amifostine / Q000494:pharmacology*; D000818:Animals; D000970:Antineoplastic Agents / Q000037:antagonists & inhibitors*; D001853:Bone Marrow / Q000187:drug effects; D001854:Bone Marrow Cells; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D003114:Colony-Forming Units Assay; D008297:Male; D051379:Mice; D009946:Organothiophosphorus Compounds / Q000494:pharmacology*; D011837:Radiation-Protective Agents / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D009946:Organothiophosphorus Compounds; D011837:Radiation-Protective Agents; D004999:Amifostine