共 3 条
In vitro leishmanicidal activity of pyrazole-containing polyamine macrocycles which inhibit the Fe-SOD enzyme of Leishmania infantum and Leishmania braziliensis species
被引:13
|作者:
Navarro, P.
[1
]
Sanchez-Moreno, M.
[2
]
Marin, C.
[2
]
Garcia-Espana, E.
[3
]
Ramirez-Macias, I.
[2
]
Olmo, F.
[2
]
Rosales, M. J.
[2
]
Gomez-Contreras, F.
[4
]
Yunta, M. J. R.
[4
]
Gutierrez-Sanchez, R.
[5
]
机构:
[1] CSIC, Inst Quim Med, Ctr Quim Organ M Lora Tamayo, E-28006 Madrid, Spain
[2] Univ Granada, Fac Ciencias, Dept Parasitol, E-18071 Granada, Spain
[3] Univ Valencia, Inst Ciencia Mol, Dept Quim Inorgan, E-46980 Paterna, Valencia, Spain
[4] Univ Complutense, Fac Quim, Dept Quim Organ, E-28040 Madrid, Spain
[5] Univ Granada, Fac Ciencias, Dept Estadist, E-18071 Granada, Spain
关键词:
Leishmania braziliensis;
Leishmania infantum;
iron superoxide dismutase;
leishmanicidal activity;
pyrazole;
polyamine macrocycle;
CONTAINING SUPEROXIDE-DISMUTASE;
MACROBICYCLIC POLYAMINES;
VISCERAL LEISHMANIASIS;
MUCOSAL LEISHMANIASIS;
ENERGY-METABOLISM;
CHAGAS-DISEASE;
IRON;
TRYPANOSOMATIDS;
DERIVATIVES;
SIMULATION;
D O I:
10.1017/S0031182014000201
中图分类号:
R38 [医学寄生虫学];
Q [生物科学];
学科分类号:
07 ;
0710 ;
09 ;
100103 ;
摘要:
The in vitro leishmanicidal activity and cytotoxicity of pyrazole-containing macrocyclic polyamines 1-4 was assayed on Leishmania infantum and Leishmania braziliensis species. Compounds 1-4 were more active and less toxic than glucantime and both infection rates and ultrastructural alterations confirmed that 1 and 2 were highly leishmanicidal and induced extensive parasite cell damage. Modifications in the excretion products of parasites treated with 1-3were also consistent with substantial cytoplasm alterations. Compound 2 was highlighted as a potent inhibitor of Fe-SOD in both species, whereas its effect on human CuZn-SOD was poor. Molecular modelling suggested that 2 could deactivate Fe-SOD due to a sterically favoured enhanced ability to interact with the H-bonding net that supports the enzyme's antioxidant features.
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页码:1031 / 1043
页数:13
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