In order to overcome the problem of drug resistance in malaria, it appears wise to concentrate drug discovery efforts toward new structural classes and new mechanisms of action. We report our results, targeting Plasmepsin II, a Plasmodium falciparum aspartic protease active in hemoglobin degradation, a parasite specific catabolic pathway. The results show that the new structural class is not only inhibiting PMII in vitro but is also active in a P. falciparum infected human red blood cell assay.
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http://dx.doi.org/10.1016/j.bmcl.2006.09.027 | DOI Listing |
Int J Biol Macromol
January 2025
UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagri Campus, Kalina, Mumbai 400098, India. Electronic address:
Adv Parasitol
October 2024
Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Ceske Budejovice, Czech Republic; Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic.
Toxicol Sci
October 2024
UCB Biopharma SRL, 1420 Braine-l'Alleud, Belgium.
Toxicol Sci
October 2024
UCB Biopharma SRL, 1420 Braine-l'Alleud, Belgium.
Quinoline-related antimalarial drugs have been associated with cardiotoxicity risk, in particular QT prolongation and QRS complex widening. In collaboration with Medicines for Malaria Venture, we discovered novel plasmepsin X (PMX) inhibitors for malaria treatment. The first lead compounds tested in anesthetized guinea pigs (GPs) induced profound QRS widening, although exhibiting weak inhibition of NaV1.
View Article and Find Full Text PDFBiochim Biophys Acta Gen Subj
September 2024
Malaria Biochemistry Laboratory, The Francis Crick Institute, London NW1 1AT, UK; Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK. Electronic address:
Background: The malaria parasite Plasmodium falciparum replicates within red blood cells, then ruptures the cell in a process called egress in order to continue its life cycle. Egress is regulated by a proteolytic cascade involving an essential parasite subtilisin-like serine protease called SUB1. Maturation of SUB1 initiates in the parasite endoplasmic reticulum with autocatalytic cleavage of an N-terminal prodomain (p31), which initially remains non-covalently bound to the catalytic domain, p54.
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