Chloroquine-containing organoruthenium complexes are fast-acting multistage antimalarial agents.
Parasitology
; 143(12): 1543-56, 2016 10.
Article
in En
| MEDLINE
| ID: mdl-27439976
ABSTRACT
We report the pharmacological activity of organoruthenium complexes containing chloroquine (CQ) as a chelating ligand. The complexes displayed intraerythrocytic activity against CQ-sensitive 3D7 and CQ-resistant W2 strains of Plasmodium falciparum, with potency and selectivity indexes similar to those of CQ. Complexes displayed activity against all intraerythrocytic stages, but moderate activity against Plasmodium berghei liver stages. However, unlike CQ, organoruthenium complexes impaired gametocyte viability and exhibited fast parasiticidal activity against trophozoites for P. falciparum. This functional property results from the ability of complexes to quickly induce oxidative stress. The parasitaemia of P. berghei-infected mice was reduced by treatment with the complex. Our findings demonstrated that using chloroquine for the synthesis of organoruthenium complexes retains potency and selectivity while leading to an increase in the spectrum of action and parasite killing rate relative to CQ.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Organometallic Compounds
/
Plasmodium berghei
/
Plasmodium falciparum
/
Ruthenium
/
Chloroquine
/
Antimalarials
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Parasitology
Year:
2016
Type:
Article
Affiliation country:
Brazil