title: Tumor cell resistance.
mesh_terms: D000478:Alkylation; D000818:Animals; D000970:Antineoplastic Agents / Q000378:metabolism; D001711:Biotransformation; D001921:Brain / Q000201:enzymology; D001932:Brain Neoplasms / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D002374:Catalase / Q000032:analysis; D002470:Cell Survival / Q000187:drug effects; D004247:DNA / Q000378:metabolism; D004260:DNA Repair; D008058:Dihydrolipoamide Dehydrogenase / Q000032:analysis; D004351:Drug Resistance; D005038:Ethylnitrosourea / Q000031:analogs & derivatives; D005979:Glutathione Peroxidase / Q000032:analysis; D006801:Humans; D009251:NADPH-Ferrihemoprotein Reductase / Q000032:analysis; D013482:Superoxide Dismutase / Q000032:analysis
chemical_list: D000970:Antineoplastic Agents; C017139:1-(2-chloroethyl)-1-nitrosourea; D004247:DNA; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D009251:NADPH-Ferrihemoprotein Reductase; D008058:Dihydrolipoamide Dehydrogenase; D005038:Ethylnitrosourea