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Study of the antimalarial properties of hydroxyethylamine derivatives using green fluorescent protein transformed Plasmodium berghei
A rapid decrease in parasitaemia remains the major goal for new antimalarial drugs and thus, in vivo models must provide precise results concerning parasitaemia modulation. Hydroxyethylamine comprise an important group of alkanolamine compounds that exhibit pharmacological properties as proteases in...
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Published in: | Memórias do Instituto Oswaldo Cruz 2015-06, Vol.110 (4), p.560-565 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A rapid decrease in parasitaemia remains the major goal for new
antimalarial drugs and thus, in vivo models must provide precise
results concerning parasitaemia modulation. Hydroxyethylamine comprise
an important group of alkanolamine compounds that exhibit
pharmacological properties as proteases inhibitors that has already
been proposed as a new class of antimalarial drugs. Herein, it was
tested the antimalarial property of new nine different
hydroxyethylamine derivatives using the green fluorescent protein
(GFP)-expressing Plasmodium berghei strain. By comparing flow cytometry
and microscopic analysis to evaluate parasitaemia recrudescence, it was
observed that flow cytometry was a more sensitive methodology. The nine
hydroxyethylamine derivatives were obtained by inserting one of the
following radical in the para position: H, 4Cl, 4-Br, 4-F, 4-CH3,
4-OCH3, 4-NO2, 4-NH2 and 3-Br. The antimalarial test showed that the
compound that received the methyl group (4-CH3) inhibited 70% of
parasite growth. Our results suggest that GFP-transfected P. berghei is
a useful tool to study the recrudescence of novel antimalarial drugs
through parasitaemia examination by flow cytometry. Furthermore, it was
demonstrated that the insertion of a methyl group at the para position
of the sulfonamide ring appears to be critical for the antimalarial
activity of this class of compounds. |
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ISSN: | 1678-8060 0074-0276 1678-8060 |
DOI: | 10.1590/0074-02760140466 |