﻿ ﻿﻿ In vitro antileukemia activity (HL-60 cells), of some 3d metal complexes. Chemical synthesis and structure – activity relationship
 Articolul precedent Articolul urmator 191 1 Ultima descărcare din IBN: 2021-02-02 10:10 SM ISO690:2012GULEA, Aurelian; POIRIER, Donald; ROY, Jenny; STAVILA, Vitalie; BULIMESTRU, Ion; TSAPKOV, Victor I.; BÎRCĂ, Maria; POPOVSCHI, Lilia. In vitro antileukemia activity (HL-60 cells), of some 3d metal complexes. Chemical synthesis and structure – activity relationship. In: Physical Methods in Coordination and Supramolecular Chemistry. XVII, 27 septembrie - 1 octombrie 2006, Chişinău. Chisinau, Republic of Moldova: 2006, p. 131. ISBN 978-9975-62-066-6. EXPORT metadate: Google Scholar Crossref CERIF DataCiteDublin Core
Physical Methods in Coordination and Supramolecular Chemistry
XVII, 2006
Conferința "The XV-th International Conference Physical Methods in Coordination and Supramolecular Chemistry : The XVII-th Reading in memory of Acad. A.Ablov"
Chişinău, Moldova, 27 septembrie - 1 octombrie 2006

 In vitro antileukemia activity (HL-60 cells), of some 3d metal complexes. Chemical synthesis and structure – activity relationship

Pag. 131-131

 Gulea Aurelian1, Poirier Donald2, Roy Jenny2, Stavila Vitalie3, Bulimestru Ion1, Tsapkov Victor I.1, Bîrcă Maria1, Popovschi Lilia1 1 State University of Moldova,2 CHUL Research Center (Université Laval),3 Rice University Disponibil în IBN: 10 iunie 2020

Rezumat

28 years after the first approval of cisplatin in the clinic against a number of cancer diseases, cisplatin and related compounds continue to be among the most efficient anticancer drugs used so far. Efforts are focused to develop novel platinum- and non-platinum-based antitumor drugs to improve clinical effectiveness, to reduce general toxicity and to broaden the spectrum of activity. Thiosemicarbazones and their transition metal complexes demonstrated potent cytotoxic activity against a series of murine and human suspended cultured tumor cells. The aim of our communication is to report the synthesis of novel 3d metal complexes with some di- and tri-dentate ligands containing N, O and S donor atoms which have different electronic and geometrical structure confirmed by elemental and thermal analyses, molar conductance, magnetic measurements, IR and NMR data. In order to investigate the antileukemia activity 27 metal complexes were tested as inhibitors of HL60 cells growing. It was established that the nature, electronic structure and coordination number of the central atom, the geometric configuration of metal complexes and the nature of the ligands (donor atoms) are important in biological activity prediction. In investigated series of complexes the most active are those having a copper (II) or a cobalt (II) species. For the octahedral environment of the cobalt complexes the electronic configuration is important Co2+ ( 3d7 ) > Co3+ ( 3d6 ). This different activity can be explained by the fact that in solutions Co2+ complexes with inner coordination sphere lifetime of the ligands 10-4 - 10-5 s are more labile in comparison with the inert Co3+ complexes (lifetime 103 – 105 s). Copper (II) complexes with different type of electronic hybridisation and geometric structure produce also different activity. We find that a square planar Cu2+ complexes have essential activity. The activity of such square planar complexes is influenced also by the nature of the ligand donor atoms. In fact complexes with coordinated ligands containing N, O and S chelate donor atoms are essentially more active than complexes including inner sphere only nitrogen or oxygen. In this case the presence of coordinated ligand containing sulphur donor atom is indicated. If sulphur ligand donor atom is blocked by CH3 group the biological activity became unsignificant.

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