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  • Title: Toxicity of anticancer agents, growth and chemosensitivity of human tumour xenografts in a segregating stock of AF nude mice.
    Author: Maruo K, Emura R, Ohnishi Y, Endo S, Ueyama Y, Nomura T.
    Journal: Lab Anim; 1991 Oct; 25(4):342-7. PubMed ID: 1753695.
    Abstract:
    An investigation of the usefulness of a segregating stock of nude mice [AF nude mice (AF-nu)] for screening anticancer agents was undertaken. The toxicity of anticancer agents, takes and growth rates of human tumour xenografts and chemosensitivities of xenografts in AF-nu were studied and compared with those in BALB/cA nude mice (BALB/cA-nu). The results showed differences in the pattern of mortalities of AF-nu and BALB/cA-nu administered a range of anticancer agents. Body weight changes in the two nude mouse strains differed in the case of 5-fluorouracil, but not for nimustine, adriamycin and vincristine. All tumours transplanted in AF-nu grew as in BALB/cA-nu. Growth rates of 2 xenografts (gastric cancer and glioblastoma) were not significantly different between the 2 nude mouse strains, but those of 2 lung tumour xenografts were significantly greater in AF-nu than those in BALB/cA-nu. There were no significant differences in chemosensitivities of human tumours in AF-nu and BALB/cA-nu (consistency rate as evaluated by our criteria was 88%). From these results, it is suggested that AF-nu are more suitable for anticancer agent screening and experimental chemotherapy of human tumour xenografts than BALB/cA-nu because of lower costs and high reproductive rate. Although they are genetically heterogeneous, sets of experimental animals sharing the same gene pool can be produced routinely.
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