title: Nickel(II) and cobalt(II) complexes of hydroxyl-substituted triazamacrocyclic ligand as potential antitumor agents.
abstract: The stability constants for the formation of nickel(II) and cobalt(II) complexes of the ligand [1,4,7]triazecan-9-ol (L) were presented. Antitumor activity of two complexes was reported. Nuclei of [NiL]-stimulated BEL-7402 cells clearly exhibited condensation and break down into chromatin clumps typical of apoptosis. Also it exhibited perturbation effects to cell cycle, and optimal induction of apoptosis was found by Flow-Cytometric analysis. But CoL complex did not exhibit introduction effects to BEL-7402 cells apoptosis; and could not perturb cell cycle. NiL and CuL complexes could cleave supercoiled DNA (pBR 322 DNA) to nicked and linear DNA, and DNA of cells treated with NiL or CuL complex was obviously damaged; while CoL complex only could cleave supercoiled DNA (pBR 322 DNA) to nicked DNA, and DNA of cells treated with CoL complex had no significant difference with control.
authors.affiliation: Department of Chemistry, Wuhan University, Wuhan 430072, Peoples Republic of China. chemoliangf@yahoo.com.cn
authors.forename: Feng
authors.initials: F
authors.lastname: Liang
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhou
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.forename: Zhaoyang
authors.initials: Z
authors.lastname: Li
authors.forename: Huakuan
authors.initials: H
authors.lastname: Lin
authors.forename: Dongzhao
authors.initials: D
authors.lastname: Gao
authors.forename: Congyi
authors.initials: C
authors.lastname: Zheng
authors.forename: Chengtai
authors.initials: C
authors.lastname: Wu
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D045744:Cell Line, Tumor; D003035:Cobalt / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D006573:Heterocyclic Compounds, 1-Ring / Q000138:chemical synthesis* / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008024:Ligands; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000494:pharmacology*
chemical_list: C492882:(1,4,7)triazecan-9-ol; D000970:Antineoplastic Agents; D006573:Heterocyclic Compounds, 1-Ring; D008024:Ligands; D009942:Organometallic Compounds; D003035:Cobalt; D009532:Nickel