6533b862fe1ef96bd12c637e

RESEARCH PRODUCT

Induction of micronucleated and binucleate cells in Chinese hamster ovary (CHO) cells by cis-diamminedichloroplatinum (II): a morphological and morphometric study

Vicente RodillaJosé A. PellicerCarmel MothersillJosé Pertusa

subject

Cell NucleusGeneticsCisplatinCis diamminedichloroplatinum iiCell typeMicronucleus TestsDose-Response Relationship DrugChinese hamster ovary cellNuclear areaBiologyToxicologyMolecular biologyCricetinaeMicronucleus testGeneticsmedicineAnimalsCisplatinCytotoxicityInterphaseCell DivisionCells CulturedAfter treatmentmedicine.drug

description

Abstract The mutagenicity and cytotoxicity of cis -diamminedichloroplatinum (II) (cisplatin) at doses of 5, 10 and 20 μg/ml in Chinese hamster ovary (CHO) cells have been examined. A morphological characterization of several cell types induced by cisplatin was carried out. The frequencies of both cells with micronuclei and binucleate cells as a time-dependent parameter have also been studied. Whilst the number of cells with micronuclei was found to decrease with time, the number of binucleate cells increased. The possible kinetic mechanism for the production of binucleate cells and cells with micronuclei is discussed. A morphometric analysis was also performed. The nuclear area in both treated and control nuclei was measured with the IBAS image analysis system. The results of this analysis show that a continuous reduction in the nuclear size in the control cells is produced. However the size of the treated cells increased after treatment.

yearjournalcountryeditionlanguage
1990-06-01Mutation Research/Genetic Toxicology
https://doi.org/10.1016/0165-1218(90)90114-h