title: Dissecting the structural basis for the intracellular delivery of OSW-1 by fluorescent probes.
abstract: The structural basis for the intracellular delivery of OSW-1 is investigated using fluorescent derivatives of OSW-1 and its closely related congeners. Despite the large differences in activity, all the fluorescent probes are found to translocate across the plasma membrane to the ER and Golgi apparatus. This observation suggests that the glycosylated cholestane moiety plays an important role in the cell internalization and intracellular localization property of OSW-1.
authors.affiliation: Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan. sakuraik@cc.tuat.ac.jp.
authors.forename: M
authors.initials: M
authors.lastname: Hiraizumi
authors.forename: R
authors.initials: R
authors.lastname: Komatsu
authors.forename: T
authors.initials: T
authors.lastname: Shibata
authors.forename: Y
authors.initials: Y
authors.lastname: Ohta
authors.forename: K
authors.initials: K
authors.lastname: Sakurai
mesh_terms: D001692:Biological Transport; D002783:Cholestenones / Q000737:chemistry* / Q000378:metabolism*; D005456:Fluorescent Dyes / Q000737:chemistry* / Q000378:metabolism*; D006367:HeLa Cells; D006801:Humans; D042541:Intracellular Space / Q000378:metabolism*; D012503:Saponins / Q000737:chemistry* / Q000378:metabolism*
chemical_list: D002783:Cholestenones; D005456:Fluorescent Dyes; D012503:Saponins; C106408:OSW 1