Design of copper DNA intercalators with leishmanicidal activity

被引:173
作者
Navarro, M
Cisneros-Fajardo, EJ
Sierralta, A
Fernández-Mestre, M
Silva, P
Arrieche, D
Marchán, E
机构
[1] Inst Venezolano Invest Cient, Ctr Quim, Caracas 1020A, Venezuela
[2] Inst Venezolano Invest Cient, Ctr Med Expt, Caracas 1020A, Venezuela
[3] Inst Venezolano Invest Cient, Ctr Fis, Caracas 1020A, Venezuela
[4] Univ Oriente, Inst Invest Biomed & Ciencias Aplicadas, Cumana, Venezuela
来源
JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY | 2003年 / 8卷 / 04期
关键词
copper polypyridyl complexes; DNA; metallointercalators; Leishmania braziliensis;
D O I
10.1007/s00775-002-0427-2
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 complexes [Cu(dppz)(NO3)]NO3 (1), [Cu(dppz)(2)(NO3)]NO3 (2), [Cu(dpq)(NO3)]NO3 (3), and [Cu(dpq)(2)(NO3)]NO3 (4) were synthesized and characterized by elemental analysis, FAB-mass spectrometry, EPR, UV, and IR spectroscopies, and molar conductivity. DNA interaction studies showed that intercalation is an important way of interacting with DNA for these complexes. The biological activity of these copper complexes was evaluated on Leishmania braziliensis promastigotes, and the results showed leishmanicidal activity. Preliminary ultrastructural studies with the most active complex (2) at 1 h revealed parasite swelling and binucleated cells. This finding suggests that the leishmanicidal activity of the copper complexes could be associated with their interaction with the parasitic DNA.
引用
收藏
页码:401 / 408
页数:8
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