Novel S-adenosyl-L-methionine decarboxylase inhibitors as potent antiproliferative agents against intraerythrocytic Plasmodium falciparum parasites.

Abstract

S-adenosyl-l-methionine decarboxylase (AdoMetDC) in the polyamine biosynthesis pathway has been identified as a suitable drug target in Plasmodium falciparum parasites, which causes the most lethal form of malaria. Derivatives of an irreversible inhibitor of this enzyme, 5'-{[(Z)-4-amino-2-butenyl]methylamino}-5'-deoxyadenosine (MDL73811), have been developed with improved pharmacokinetic profiles and activity against related parasites, Trypanosoma brucei. Here, these derivatives were assayed for inhibition of AdoMetDC from P. falciparum parasites and the methylated derivative, 8-methyl-5'-{[(Z)-4-aminobut-2-enyl]methylamino}-5'-deoxyadenosine (Genz-644131) was shown to be the most active. The in vitro efficacy of Genz-644131 was markedly increased by nanoencapsulation in immunoliposomes, which specifically targeted intraerythrocytic P. falciparum parasites.

• Authors: Dina le Roux, Pieter B Burger, Jandeli Niemand, Anne Grobler, Patricia Urbán, Xavier Fernàndez-Busquets, Robert H Barker, Adelfa E Serrano, Abraham I Louw, Lyn-Marie Birkholtz
• Journal: International journal for parasitology. Drugs and drug resistance (Int J Parasitol Drugs Drug Resist) Vol. 4 Issue 1 Pg. 28-36 (Apr 2014) ISSN: 2211-3207 [Print] Netherlands
• PMID: 24596666 (Publication Type: Journal Article)