Mutagenesis vol. 11 no. 6 pp. 547-552, 1996
© 1996 UK Environmental Mutagen Society/Oxford University Press
research-article |
Detection of minor and major satellite DNA in cytokinesis-blocked mouse splenocytes by a PRINS tandem labelling approach
Department of Biology, University of Padova Via Trieste 75, 35121 Padova, Italy
A protocol for the simultaneous visualization of minor and major satellite DNA by primed in situ DNA synthesis PRINS was developed in cytokinesisblocked murine splenocytes. After individuation of optimal experimental conditions, a micronucleus MN test was carried out by treating splenocytes in vitro with the clastogenic agent mitomycin C and the aneugenic compound Colcemid. It was found that PRINS gives highly reproducible results, also comparable with the literature on MN results obtained by fluorescent in situ hybridization FISH. Therefore the PRINS methodology may be proposed as a fast alternative to FISH for the characterization of induced MN.
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