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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Piperidones with activity against Plasmodium falciparum.

The increasing resistance of the malaria parasites has enforced new strategies of finding new drug targets. We have isolated two genes involved in spermidine metabolism, encoding deoxyhypusine synthase ( DHS) and eukaryotic initiation factor 5A (eIF-5A) in the malaria parasites. eIF-5A is activated by the formation of the unusual amino acid hypusine. This process occurs in two steps. DHS transfers an aminobutyl moiety from the triamine spermidine to a specific lysine residue in the eIF-5A precursor protein to form deoxyhypusine. In a second step, deoxyhypusine hydroxylase (DHH), completes hypusine biosynthesis. We used DHH inhibitors, being effective in mammalian cells, to study an antiplasmodicidal effect in Plasmodium falciparum. Experiments with the antifungal drug ciclopiroxolamine, an alpha-hydroxypyridone, and the plant amino acid L: -mimosine, a 4-pyridone, resulted in an antiplasmodial effect in vitro. Using mimosine as a lead structure, alkyl 4-oxo-piperidine 3-carboxylates were found to have the most efficient antiplasmodial effects in vitro and in vivo.[1]

References

  1. Piperidones with activity against Plasmodium falciparum. Saeftel, M., Sarite, R.S., Njuguna, T., Holzgrabe, U., Ulmer, D., Hoerauf, A., Kaiser, A. Parasitol. Res. (2006) [Pubmed]
 
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