title: Enhancing effects of heterocyclic amines and beta-carbolines on the induction of chromosome aberrations in cultured mammalian cells.
abstract: The effects of post-treatment with heterocyclic amines and beta-carbolines on the induction of chromosome aberrations were studied in Chinese hamster CHO K-1 cells and SV40-transformed excision repair-deficient human XP2OSSV cells. The number of chromosome aberrations induced by UV and MMC were increased by post-treatment with Trp-P-1 and Trp-P-2, in both the presence and the absence of S9 mix. A alpha C, MeA alpha C, Glu-P-1, Glu-P-2, IQ, MeIQ, harman and harmine increased chromosome aberrations only in the presence of S9 mix. Glu-P-2, IQ, MeIQ, harman, and harmine did not induce chromosome aberrations by themselves at the concentrations used in this study. Trp-P-1, Trp-P-2, A alpha C, MeA alpha C and Glu-P-1 were weak clastogens by themselves, but at much higher concentrations than those at which they increased the induction of chromosome aberrations in cells pretreated with UV or MMC. Therefore, the increases in chromosome aberrations were not considered to be additive.
authors.affiliation: Biological Laboratory, School of Science, Kwansei Gakuin University, Hyogo, Japan.
authors.forename: Y F
authors.initials: YF
authors.lastname: Sasaki
authors.forename: H
authors.initials: H
authors.lastname: Yamada
authors.forename: K
authors.initials: K
authors.lastname: Shimoi
authors.forename: N
authors.initials: N
authors.lastname: Kinae
authors.forename: I
authors.initials: I
authors.lastname: Tomita
authors.forename: H
authors.initials: H
authors.lastname: Matsumura
authors.forename: T
authors.initials: T
authors.lastname: Ohta
authors.forename: Y
authors.initials: Y
authors.lastname: Shirasu
mesh_terms: D000588:Amines / Q000633:toxicity*; D000818:Animals; D002243:Carbolines / Q000633:toxicity*; D002461:Cell Line, Transformed; D002869:Chromosome Aberrations; D006224:Cricetinae; D003412:Cricetulus; D004260:DNA Repair / Q000187:drug effects; D006571:Heterocyclic Compounds / Q000633:toxicity*; D006801:Humans; D009152:Mutagenicity Tests; D009153:Mutagens / Q000633:toxicity*
chemical_list: D000588:Amines; D002243:Carbolines; D006571:Heterocyclic Compounds; D009153:Mutagens