Synthesis and characterization of new copper thiosemicarbazone complexes with an ONNS quadridentate system: Cell growth inhibition, S-phase cell cycle arrest and proapoptotic activities on cisplatin-resistant neuroblastoma cells

Haiyuan Zhang, Ronald Thomas, David Oupicky, Fangyu Peng

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

Two new copper thiosemicarbazone complexes with an ONNS quadridentate system were synthesized and evaluated for anticancer activity on cisplatin-resistant neuroblastoma cells. Among these two copper complexes, the substituted 8-hydroxyquinoline-2-carboxaldehyde-4,4-dimethyl-3-thiosemicarbazide (CuHQDMTS) exhibited stronger cell growth inhibition activity than the unsubstituted copper 8-hydroxyquinoline-2-carboxaldehyde thiosemicarbazide complex (CuHQTS). Both CuHQTS and CuHQDMTS showed dose-dependent cell growth inhibition, cell cycle arrest and apoptosis induction activities on the SK-N-DZ neuroblastoma cells. Increased expression of p53 protein molecules was detected in the SK-N-DZ cells treated with CuHQTS. The data obtained in this study suggest that CuHQDMTS and CuHQTS hold potential as new, effective drugs for treatment of refractory neuroblastoma in children.

Original languageEnglish (US)
Pages (from-to)47-55
Number of pages9
JournalJournal of Biological Inorganic Chemistry
Volume13
Issue number1
DOIs
StatePublished - Jan 1 2008

Keywords

  • Apoptosis
  • Cell cycle arrest
  • Copper
  • Proliferation inhibition
  • Thiosemicarbazone

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry

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