engleski

Harmiquins, novel potent antiplasmodial hits

Here we present design and synthesis of AT and TT harmiquins, evaluation of their biological activity and possible mechanism of action. Harmiquins displayed remarkable activity against the erythrocytic life stage of CQsensitive, as well as CQ-resistant Plasmodium strains. The most active compound, AT harmiquine 32, displayed a 5.5-fold higher activity against Pf3D7 than CQ (IC50 = 2 ± 0.3 nM), at least 15.9-fold higher activity than CQ against P. falciparum CQ resistant strains and had a very high selectivity index (4450). Two possible mechanisms of action, inhibition of heme polymerisation and binding to PfHsp90, might play a role in the inhibition of Plasmodium intraerythrocytic development.

harmine ; chloroquine ; hybrid molecules ; synthesis ; antiplasmodial activity ; PfHsp90

nije evidentirano