title: A model to study drug effects on lymphoma and normal cell populations using the AKR/J mouse.
abstract: The existence of an AKR subline, AKR(Rb6.15)1A1d, with a chromosome marker provided a means to differentiate between proliferating lymphoma and normal cell populations within a single animal. An AKR(Rb6.15)1A1d lymphoma cell line has been maintained for 6 yr by serial passage in AKR/J recipients. The mice die in 7 +/- 2.0 days with evidence of extensive infiltration of the tissues by lymphoma cells. Cytogenetic analysis showed that approx. 1% of the metaphase cells in the bone marrow of mice at day 1 of the lymphoma passage were of the AKR(Rb6.15)1A1d donor-type. This increased to 54% by day 4 and 96% by day 6. The number of donor-type metaphase cells per humerus increased from 3.4 +/- 0.29 (X 10(3] at day 1 to 2.0 +/- 0.49 (X 10(5] at day 4 with a concomitant decrease in the number of non-lymphoma host-type metaphase cells. The population doubling time of donor-type metaphase cells per humerus was 12 +/- 1.4 h. At day 4, there was a significant decrease in the percentage of donor-type metaphase cells in mice that had been treated with BCNU (19.0 +/- 5.85%) or spirogermanium (38.6 +/- 5.85%) 24 h earlier. For BCNU treated animals, this also represented a decrease to 4.4 +/- 1.1 (X 10(4] donor-type metaphase cells per humerus.
mesh_terms: D000818:Animals; D002330:Carmustine / Q000627:therapeutic use*; D002460:Cell Line; D004195:Disease Models, Animal; D005857:Germanium / Q000627:therapeutic use*; D007621:Karyotyping; D007942:Leukemia, Experimental / Q000188:drug therapy*; D008223:Lymphoma / Q000188:drug therapy* / Q000235:genetics; D051379:Mice; D008806:Mice, Inbred AKR / Q000502:physiology*; D009368:Neoplasm Transplantation; D009942:Organometallic Compounds; D013141:Spiro Compounds / Q000627:therapeutic use*
chemical_list: D009942:Organometallic Compounds; D013141:Spiro Compounds; D005857:Germanium; C026818:spirogermanium; D002330:Carmustine