A multistage antimalarial targets the plasmepsins IX and X essential for invasion and egress.
A multistage antimalarial targets the plasmepsins IX and X essential for invasion and egress.
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DOI:
10.1126/science.aaf8675
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发表时间:
2017-10-27
期刊:
影响因子:
--
通讯作者:
Soldati-Favre D
中科院分区:
文献类型:
--
作者:
Pino P;Caldelari R;Mukherjee B;Vahokoski J;Klages N;Maco B;Collins CR;Blackman MJ;Kursula I;Heussler V;Brochet M;Soldati-Favre D
Regulated exocytosis by secretory organelles is important for malaria parasite invasion and egress. Many parasite effector proteins, including perforins, adhesins, and proteases, are extensively proteolytically processed both pre- and post-exocytosis. Here, we report the multi-stage anti-plasmodial activity of the aspartic protease inhibitor hydroxyl-ethyl-amine-based scaffold compound, 49c. This scaffold inhibits the pre-exocytosis processing of several secreted rhoptry and microneme proteins by targeting the corresponding maturases plasmepsins IX (PfPMIX) and X (PfPMX), respectively. Conditional excision of PfPMIX revealed its crucial role in invasion, and recombinantly active PfPMIX and PfPMX cleave egress and invasion factors in a 49c sensitive manner.
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