title: [Process of active dissociation of vital stain Hoechst 33342 from DNa in cells of cultured rodent cell lines].
abstract: The process of active dissociation or "DNA clearing" of not covalently binding agents from DNA in living HeLa cells was shown by the flow cytometry technique. The vital fluorescent bisbenzimidazole dye Hoechst 33342, which binds tightly but not covalently to DNA in a minor groove, was used as a basic model to study the interaction of not covalently binding agents with DNA. In this paper, we continue to analyse the "DNA clearing" process in the living fibroblasts of different rodent species (mouse, rat, Chinese hamster). The obtained data suggest that the processes of active dissociation or "DNA clearing" of Hoechst 33342 have some common features in all investigated mammalian cells. Nevertheless, some differences in the process were found in these lines. The role of nucleotide excision repair genes in the process of DNA clearing was not established.
authors.affiliation: Nuclear Physics Institute, Russian Academy of Sciences, St. Petersburg.
authors.forename: V V
authors.initials: VV
authors.lastname: Levina
authors.forename: E Iu
authors.initials: EIu
authors.lastname: Varfolomeeva
authors.forename: E A
authors.initials: EA
authors.lastname: Drobchenko
authors.forename: A N
authors.initials: AN
authors.lastname: Tret'iakov
authors.forename: N V
authors.initials: NV
authors.lastname: Klopov
authors.forename: M V
authors.initials: MV
authors.lastname: Filatov
mesh_terms: D000818:Animals; D001562:Benzimidazoles; D002460:Cell Line; D006224:Cricetinae; D003412:Cricetulus; D004247:DNA / Q000032:analysis*; D004260:DNA Repair; D005434:Flow Cytometry; D005456:Fluorescent Dyes; D006367:HeLa Cells; D006801:Humans; D051379:Mice; D051381:Rats
chemical_list: D001562:Benzimidazoles; D005456:Fluorescent Dyes; D004247:DNA; C017807:bisbenzimide ethoxide trihydrochloride
vernacular_title: Protsess aktivnoĭ dissotsiatsii prizhiznennogo krasitelia Khëkhsta 33342 iz DNK kletok perevivaemykh kletochnykh liniĭ gryzunov.