Ohshima S. Induction of aneuploidy by nickel sulfate in V79 Chinese hamster cells.
MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2001;
492:39-50. [PMID:
11377242 DOI:
10.1016/s1383-5718(01)00148-6]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The ability of nickel sulfate (NiSO(4)) to induce chromosome aneuploidy was investigated in vitro using the V79 Chinese hamster cell line. V79 cells were treated with 100-400 microM NiSO(4) for 24h, and monitored up to 72 h following treatment with a chromosome aberration assay, a micronuclei assay using antikinetochore antibodies (CREST assay) and an anaphase/telophase assay. Aneuploid cells were induced in a significant fraction of the cell population 24-48 h following treatment with nickel sulfate. The majority of these cells were hyperdiploid. In addition, nickel sulfate caused increased frequency of cells with kinetochore-positive micronuclei as well as kinetochore-negative micronuclei. Abnormal chromosome segregation such as lagging chromosomes, chromosome bridges and asymmetric segregation were also observed in more than 50% of anaphase or telophase cells following treatment with NiSO(4). The incidences of these abnormalities were dose-dependent in general, although the effects were prominent in a sublethal dose. These results indicate that NiSO(4) has the ability to induce aneuploidy in V79 cells. In addition, the results in anaphase/telophase assay suggest that the compound may have an effect on spindle apparatus, which could result in aneuploidy following abnormal chromosome segregation.
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