期刊
MOLECULES
卷 26, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/molecules26041008
关键词
Plasmodium falciparum; aminoquinoline; nopol; α -pinene; malaria
资金
- US National Institutes of Health [SC3GM122629, G12MD007581]
- National Science Foundation (NSF) HBCU-RISE Program [HRD-1547836]
- American Association of University Women (AAUW)
The study focused on investigating nopol-based quinoline derivatives for their inhibitory activity against Plasmodium falciparum, one of the parasites that cause malaria. The results showed that certain derivatives were moderately active against the asexual blood stage of the parasite but inactive against chloroquine-resistant strains. Future research will focus on exploring the moderately active and selective compounds against different stages of Plasmodium parasites.
Malaria remains a significant cause of morbidity and mortality in Sub-Saharan Africa and South Asia. While clinical antimalarials are efficacious when administered according to local guidelines, resistance to every class of antimalarials is a persistent problem. There is a constant need for new antimalarial therapeutics that complement parasite control strategies to combat malaria, especially in the tropics. In this work, nopol-based quinoline derivatives were investigated for their inhibitory activity against Plasmodium falciparum, one of the parasites that cause malaria. The nopyl-quinolin-8-yl amides (2-4) were moderately active against the asexual blood stage of chloroquine-sensitive strain Pf3D7 but inactive against chloroquine-resistant strains PfK1 and PfNF54. The nopyl-quinolin-4-yl amides and nopyl-quinolin-4-yl-acetates analogs were generally less active on all three strains. Interesting, the presence of a chloro substituent at C7 of the quinoline ring of amide 8 resulted in sub-micromolar EC50 in the PfK1 strain. However, 8 was more than two orders of magnitude less active against Pf3D7 and PfNF54. Overall, the nopyl-quinolin-8-yl amides appear to share similar antimalarial profile (asexual blood-stage) with previously reported 8-aminoquinolines like primaquine. Future work will focus on investigating the moderately active and selective nopyl-quinolin-8-yl amides on the gametocyte or liver stages of Plasmodium falciparum and Plasmodium vivax.
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