title: Inhibitors of polyamine biosynthesis affect the expression of genes encoding cytoskeletal proteins.
abstract: The polyamines are ubiquitous components of mammalian cells. Those compounds have been postulated to play an important role in different cellular functions including the reorganization of cytoskeleton associated with the cell cycle. In the studies reported here, it was found that inhibitors of polyamine biosynthesis, methylglyoxal-bis[quanylhydrazone] (MGBG) and difluoromethylornithine (DFMO), prevent mitogen-induced accumulation of mRNAs encoding major cytoskeletal components, beta-actin and alpha-tubulin, in mouse splenocytes. These findings suggest mechanisms through which polyamines may exert their effects on the cytoskeleton integrity.
authors.affiliation: Department of Cellular Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland.
authors.forename: B
authors.initials: B
authors.lastname: Kamińska
authors.forename: L
authors.initials: L
authors.lastname: Kaczmarek
authors.forename: B
authors.initials: B
authors.lastname: Grzelakowska-Sztabert
mesh_terms: D000818:Animals; D003598:Cytoskeletal Proteins / Q000096:biosynthesis*; D000518:Eflornithine / Q000494:pharmacology; D005786:Gene Expression Regulation / Q000187:drug effects*; D008214:Lymphocytes / Q000187:drug effects / Q000378:metabolism*; D051379:Mice; D008935:Mitoguazone / Q000494:pharmacology; D011073:Polyamines / Q000037:antagonists & inhibitors / Q000378:metabolism*; D013154:Spleen / Q000166:cytology
chemical_list: D003598:Cytoskeletal Proteins; D011073:Polyamines; D008935:Mitoguazone; D000518:Eflornithine