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Hernández W, Paz J, Carrasco F, Vaisberg A, Spodine E, Manzur J, Hennig L, Sieler J, Blaurock S, Beyer L. Synthesis and Characterization of New Palladium(II) Thiosemicarbazone Complexes and Their Cytotoxic Activity against Various Human Tumor Cell Lines. Bioinorg Chem Appl 2013; 2013:524701. [PMID: 24391528 PMCID: PMC3874341 DOI: 10.1155/2013/524701] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 09/27/2013] [Accepted: 10/03/2013] [Indexed: 11/27/2022] Open
Abstract
The palladium(II) bis-chelate complexes of the type [Pd(TSC(1-5))2] (6-10), with their corresponding ligands 4-phenyl-1-(acetone)-thiosemicarbazone, HTSC(1) (1), 4-phenyl-1-(2'-chloro-benzaldehyde)-thiosemicarbazone, HTSC(2) (2), 4-phenyl-1-(3'-hydroxy-benzaldehyde)-thiosemicarbazone, HTSC(3) (3), 4-phenyl-1-(2'-naphthaldehyde)-thiosemicarbazone, HTSC(4) (4), and 4-phenyl-1-(1'-nitro-2'-naphthaldehyde)-thiosemicarbazone, HTSC(5) (5), were synthesized and characterized by elemental analysis and spectroscopic techniques (IR and (1)H- and (13)C-NMR). The molecular structure of HTSC(3), HTSC(4), and [Pd(TSC(1))2] (6) have been determined by single crystal X-ray crystallography. Complex 6 shows a square planar geometry with two deprotonated ligands coordinated to Pd(II) through the azomethine nitrogen and thione sulfur atoms in a cis arrangement. The in vitro cytotoxic activity measurements indicate that the palladium(II) complexes (IC50 = 0.01-9.87 μM) exhibited higher antiproliferative activity than their free ligands (IC50 = 23.48-70.86 and >250 μM) against different types of human tumor cell lines. Among all the studied palladium(II) complexes, the [Pd(TSC(3))2] (8) complex exhibited high antitumor activity on the DU145 prostate carcinoma and K562 chronic myelogenous leukemia cells, with low values of the inhibitory concentration (0.01 and 0.02 μM, resp.).
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Affiliation(s)
- Wilfredo Hernández
- Facultad de Ingeniería Industrial, Universidad de Lima, Avenida Javier Prado Este Cuadra 46, Urbanización Monterrico, Lima 33, Peru
| | - Juan Paz
- Facultad de Ingeniería Industrial, Universidad de Lima, Avenida Javier Prado Este Cuadra 46, Urbanización Monterrico, Lima 33, Peru
| | - Fernando Carrasco
- Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal, Jr. Río Chepén s/n, El Agustino; Lima, Peru
| | - Abraham Vaisberg
- Laboratorio de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Avenida Honorio Delgado 430, Urbanización Ingeniería-San Martin de Porras, Lima 31, Peru
| | - Evgenia Spodine
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, CEDENNA, Olivos 1007, Casilla 233, Independencia, 8330492 Santiago, Chile
| | - Jorge Manzur
- Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, CEDENNA, 8370448 Santiago, Chile
| | - Lothar Hennig
- Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Joachim Sieler
- Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Steffen Blaurock
- Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Lothar Beyer
- Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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Dutta J, Datta S, Kumar Seth D, Bhattacharya S. Mixed-ligand benzaldehyde thiosemicarbazone complexes of palladium containing N,O-donor ancillary ligands. Syntheses, structures, and catalytic application in C–C and C–N coupling reactions. RSC Adv 2012. [DOI: 10.1039/c2ra21078a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Datta S, Seth DK, Butcher RJ, Bhattacharya S. Mixed-ligand thiosemicarbazone complexes of nickel: Synthesis, structure and catalytic activity. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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