Elena V Shabalina

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To investigate the phenomenon of active dissociation of the vital dye, Hoechst 33342 (Ho342), from DNA (DNA clearing), a new MCF7HoeR-7 human breast carcinoma cell line was isolated from parent MCF7 cells by step-wise selection with increasing concentrations of Ho342. This cell line possesses an enhanced ability for DNA clearing. The MCF7HoeR-7 line is(More)
The process of active dissociation of noncovalently bound agents from DNA or "DNA clearing" in the living cells was described elsewhere. The vital fluorescent bisbenzimidazole dye Hoechst 33342 (4342), which binds tightly but not covalently to DNA in the minor groove, was used for studying interactions of agents noncovalently binding with DNA. The "DNA(More)
The phenomenon of active dissociation of the noncovalently binding vital dye Hoechst 33342 from DNA in living cells (DNA clearing) is described. Step-by-step selection with increasing concentrations of the dye resulted in a series of rodent cell lines that were resistant to the toxic action of Hoechst 33342. Some of the lines exhibited enhanced dissociation(More)
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