2-Benzoylpyridine-N(4)-tolyl thiosemicarbazones and their palladium(II) complexes: Cytotoxicity against leukemia cells

被引:51
作者
Ferraz, Karina S. O. [1 ]
Ferandes, Lucas [2 ]
Carrilho, Diego [2 ]
Pinto, Mauro C. X. [2 ]
Leite, Maria de Fatima [2 ]
Souza-Fagundes, Elaine M. [2 ]
Speziali, Nivaldo L. [3 ]
Mendes, Isolda C. [1 ]
Beraldo, Heloisa [1 ]
机构
[1] Univ Fed Minas Gerais, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Dept Fisiol & Biofis, BR-31270901 Belo Horizonte, MG, Brazil
[3] Univ Fed Minas Gerais, Dept Fis, BR-31270901 Belo Horizonte, MG, Brazil
关键词
Thiosemicarbazones; Palladium(II) complexes; Leukemia; BCL-X-L; RIBONUCLEOTIDE REDUCTASE; TOXICITY; INHIBITOR; ASSAY;
D O I
10.1016/j.bmc.2009.08.063
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The palladium(II) complexes [Pd(2Bz4oT)Cl], [Pd(2Bz4mT)Cl], and [Pd(2Bz4pT)Cl] were prepared with N(4)-ortho- (H2Bz4oT) N(4)-meta- (H2Bz4mT) and N(4)-para- (H2Bz4pT) tolyl-thiosemicarbazones derived from 2-benzoylpyridine. The free thiosemicarbazones proved to be highly cytotoxic against Jurkat, HL60 and the resistant HL60. Bcl-X-L leukemia cell lines at nanomolar concentrations, but were much less cytotoxic to HepG2 human hepatoma cells. Upon coordination to palladium(II) the cytotoxic activity against all studied cell lines decreases. However, the high cytotoxicity of the free thiosemicarbazones against leukemia, together with their hepatotoxic profile similar to that of cisplatin suggest that N(4)tolyl thiosemicarbazones have potential as chemotherapeutic drug candidates. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:7138 / 7144
页数:7
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