title: New ferrocene containing peptide conjugates: synthesis and effect on human leukemia (HL-60) cells.
abstract: Data reported in this article describe the synthesis of Arg-rich oligopeptide conjugates of ferrocenecarboxylic acid on solid support with two different strategies and for the first time, the successful preparation of peptide conjugates of ferrocenylacrylic acid in solution. The antitumor effect of conjugates was analyzed by MTT assay in vitro. We demonstrated that ferrocenylacrylic acid possessing an enone (--CH==CH--CO--) moiety exhibited remarkable antiproliferative effect against human leukemia cells (HL-60) in vitro, but its effect was not improved by conjugation with hexa- or octaarginines. However, we observed highly increased water-solubility. In contrast, the results provide evidence that conjugation of ferrocenecarboxylic acid to Arg(n) (n = 6, 8) improved not only its water-solubility, but also antitumor effect on human leukemia cells in vitro.
authors.affiliation: Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest, Hungary.
authors.forename: Zsanett
authors.initials: Z
authors.lastname: Miklán
authors.forename: Rita
authors.initials: R
authors.lastname: Szabó
authors.forename: Virág
authors.initials: V
authors.lastname: Zsoldos-Mády
authors.forename: Judit
authors.initials: J
authors.lastname: Reményi
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Bánóczi
authors.forename: Ferenc
authors.initials: F
authors.lastname: Hudecz
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D005296:Ferrous Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D018922:HL-60 Cells; D006801:Humans; D000075163:Metallocenes; D015394:Molecular Structure; D009842:Oligopeptides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D005296:Ferrous Compounds; D000075163:Metallocenes; D009842:Oligopeptides; C004998:ferrocene