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[A study of aneuploid induction by three mitotic arrestants in mouse bone marrow cells]
Abstract:
Three mitotic arrestants, i.e., colchicine (COL), econazole(EZ) and hydroquinone (HQ) have been assayed by means of C-Mitotic (CM) effects, micronucleus (MN) and chromosomal aberration (CA) test for their effects of aneuploid induction in mouse bone marrow cells COL induced poly/aneuploid in mouse bone marrow cells. EZ was weakly positive in CM effects test but it may not induce aneuploid in mammalian cells. HQ could not only be a clastogen but also an aneuploid inducer. The results indicated that the comparative employment of the three cytogenetic criteria could be quite useful for detecting aneuploidy inducers in mammalian somatic cells in vivo.
Insights
Colchicine and hydroquinone induce aneuploidy in mouse bone marrow cells, while econazole shows weak effects. This study highlights using cytogenetic tests to detect aneuploidy inducers in somatic cells.
Area of Science:
- Cytogenetics
- Toxicology
- Mammalian cell biology
Background:
- Aneuploidy, an abnormal chromosome number, is linked to developmental issues and cancer.
- Mitotic arrestants are chemicals that interfere with cell division.
- Assessing the aneuploidogenic potential of chemicals is crucial for risk assessment.
Purpose of the Study:
- To evaluate the aneuploid induction potential of colchicine (COL), econazole (EZ), and hydroquinone (HQ) in mouse bone marrow cells.
- To compare the efficacy of C-Mitotic (CM) effects, micronucleus (MN), and chromosomal aberration (CA) tests in detecting aneuploidy.
- To determine if these agents act as clastogens or aneuploidy inducers.
Main Methods:
- In vivo assay of mouse bone marrow cells.
- Application of C-Mitotic (CM) effects test.
- Application of micronucleus (MN) test.
- Application of chromosomal aberration (CA) test.
Main Results:
- Colchicine (COL) induced polyploidy and aneuploidy.
- Hydroquinone (HQ) demonstrated both clastogenic and aneuploidy-inducing effects.
- Econazole (EZ) showed weak positive results in the CM effects test but did not appear to induce aneuploidy in mammalian cells.
Conclusions:
- The combined use of CM, MN, and CA tests is effective for identifying aneuploidy inducers in mammalian somatic cells.
- Hydroquinone is identified as a potential aneuploidy inducer.
- Econazole's aneuploidogenic potential in vivo requires further investigation.