Abstract:
:As part of the global effort toward malaria eradication, phenotypic whole-cell screening revealed the 2-aminopyridine class of small molecules as a good starting point to develop new antimalarial drugs. Stemming from this series, we found that the derivative, MMV390048, lacked cross-resistance with current drugs used to treat malaria. This compound was efficacious against all Plasmodium life cycle stages, apart from late hypnozoites in the liver. Efficacy was shown in the humanized Plasmodium falciparum mouse model, and modest reductions in mouse-to-mouse transmission were achieved in the Plasmodium berghei mouse model. Experiments in monkeys revealed the ability of MMV390048 to be used for full chemoprotection. Although MMV390048 was not able to eliminate liver hypnozoites, it delayed relapse in a Plasmodium cynomolgi monkey model. Both genomic and chemoproteomic studies identified a kinase of the Plasmodium parasite, phosphatidylinositol 4-kinase, as the molecular target of MMV390048. The ability of MMV390048 to block all life cycle stages of the malaria parasite suggests that this compound should be further developed and may contribute to malaria control and eradication as part of a single-dose combination treatment.
journal_name
Sci Transl Medjournal_title
Science translational medicineauthors
Paquet T,Le Manach C,Cabrera DG,Younis Y,Henrich PP,Abraham TS,Lee MCS,Basak R,Ghidelli-Disse S,Lafuente-Monasterio MJ,Bantscheff M,Ruecker A,Blagborough AM,Zakutansky SE,Zeeman AM,White KL,Shackleford DM,Mannila J,Modoi
10.1126/scitranslmed.aad9735subject
Has Abstractpub_date
2017-04-26 00:00:00issue
387eissn
1946-6234issn
1946-6242pii
9/387/eaad9735journal_volume
9pub_type
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