title: [Characteristics of a monolayer culture of bone marrow cells in rats with plutonium 239-induced osteosarcomas].
abstract: The report is concerned with a monolayer culture of bone marrow cells of rats in which optimal blastogenic dose (92.5 kBq/kg) induced osteosarcoma. The cell culture showed an enhanced rate of fibroblast-like cell proliferation (increased number of mitoses and symplasts and larger colonies of cells), apparent signs of radiation injury (pathologic mitoses, chromosome aberrations and gaps) as well as an increase in ploidy. Diffusion chamber measurements demonstrated osteogenic precursor-cells in osteosarcoma-bearing rats to be highly capable of bone formation. This relatively high ability seems to occur outside bone marrow as well.
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000473:pathology* / Q000528:radiation effects; D002478:Cells, Cultured; D003114:Colony-Forming Units Assay; D005347:Fibroblasts / Q000473:pathology; D008297:Male; D008938:Mitosis; D009381:Neoplasms, Radiation-Induced / Q000209:etiology / Q000473:pathology*; D010012:Osteogenesis; D011005:Plutonium / Q000633:toxicity*; D051381:Rats; D011919:Rats, Inbred Strains; D012513:Sarcoma, Experimental / Q000209:etiology / Q000473:pathology*
chemical_list: D011005:Plutonium
vernacular_title: Kharakteristika monosloĭnoĭ kul'tury kletok kostnogo mozga krys s osteosarkomami, indutsirovannymi plutoniem-239.