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Derivatives of Amaryllidaceae Alkaloid Ambelline as Selective Inhibitors of Hepatic Stage of Plasmodium berghei Infection In Vitro
KH. Breiterová, A. Ritomská, D. Fontinha, J. Křoustková, D. Suchánková, A. Hošťálková, M. Šafratová, E. Kohelová, R. Peřinová, R. Vrabec, D. Francisco, M. Prudêncio, L. Cahlíková
Status neindexováno Jazyk angličtina Země Švýcarsko
Typ dokumentu časopisecké články
Free Medical Journals od 2010
PubMed Central od 2009
Europe PubMed Central od 2009
ProQuest Central od 2009-01-01
Open Access Digital Library od 2009-01-01
Open Access Digital Library od 2010-01-01
ROAD: Directory of Open Access Scholarly Resources od 2009
Odkazy
PubMed
36986868
DOI
10.3390/pharmaceutics15031007
Knihovny.cz E-zdroje
- Publikační typ
- časopisecké články MeSH
The incidence rate of malaria and the ensuing mortality prompts the development of novel antimalarial drugs. In this work, the activity of twenty-eight Amaryllidaceae alkaloids (1-28) belonging to seven different structural types was assessed, as well as twenty semisynthetic derivatives of the β-crinane alkaloid ambelline (28a-28t) and eleven derivatives of the α-crinane alkaloid haemanthamine (29a-29k) against the hepatic stage of Plasmodium infection. Six of these derivatives (28h, 28m, 28n and 28r-28t) were newly synthesized and structurally identified. The most active compounds, 11-O-(3,5-dimethoxybenzoyl)ambelline (28m) and 11-O-(3,4,5-trimethoxybenzoyl)ambelline (28n), displayed IC50 values in the nanomolar range of 48 and 47 nM, respectively. Strikingly, the derivatives of haemanthamine (29) with analogous substituents did not display any significant activity, even though their structures are quite similar. Interestingly, all active derivatives were strictly selective against the hepatic stage of infection, as they did not demonstrate any activity against the blood stage of Plasmodium infection. As the hepatic stage is a bottleneck of the plasmodial infection, liver-selective compounds can be considered crucial for further development of the malaria prophylactics.
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