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Genotoxic effects of poly-D-lysine in m-AMSA (amsacrine) treated Chinese hamster ovary (CHO) cells.

Cultured Chinese hamster ovary (CHO) cells were pre-treated with m-AMSA (amsacrine) and post-treated with different doses of polycationic compound poly-D-lysine (PDL) during G2 period in order to test on the frequency of chromatid-type aberrations. The present results indicate that PDL enhances the genotoxic action of m-AMSA measured as induced chromatid aberrations.