Testing chemical agents with the cytokinesis-block micronucleus cytome assay.
Folia Biol (Praha)
; 58(5): 215-20, 2012.
Article
in En
| MEDLINE
| ID: mdl-23249641
ABSTRACT
In order to evaluate the applicability of the cytokinesis-block micronucleus cytome assay in routine mutagenicity testing we investigated with this method different chemicals having different mechanisms of action non-mutagens, direct-acting basealtering mutagens, direct-acting cross-linking mutagens, clastogens including a radiomimetic chemical, indirect-acting spindle poisons and indirect-acting enzyme inhibitors. We looked at the presence of micronuclei as biomarkers for either the loss of chromosome fragments (clastogen) or the loss of a whole chromosome (aneugen), nucleoplasmic bridges as biomarkers for complex rearrangements (e.g., dicentric chromosomes) and nuclear buds as biomarkers for gene amplification. The cytome assay proved to be a suitable tool to investigate genetic effects of environmental agents and to provide insight into their working mechanisms as all chemicals tested showed the expected response.
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Database:
MEDLINE
Main subject:
Micronucleus Tests
/
Cytokinesis
/
Mutagens
Limits:
Humans
Language:
En
Year:
2012
Type:
Article