Integrative genetic manipulation of Plasmodium cynomolgi reveals MultiDrug Resistance-1 Y976F associated with increased in vitro susceptibility to mefloquine.
The Journal of infectious diseases(2022)
Abstract
The lack of a long-term in vitro culture method has severely restricted the study of Plasmodium vivax, in part because it limits genetic manipulation and reverse genetics. We used the recently optimized P. cynomolgi Berok in vitro culture model to investigate the putative P. vivax drug resistance marker MDR1 Y976F. Introduction of this mutation using CRISPR-Cas9 increased sensitivity to mefloquine, but had no significant effect on sensitivity to chloroquine, amodiaquine, piperaquine and artesunate. To our knowledge, this is the first reported use of CRISPR-Cas9 in P. cynomolgi, and the first reported integrative genetic manipulation of this species.
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Key words
Antimalarial drug resistance,CRISPR-Cas9,Chloroquine,Mefloquine,Molecular Markers,Plasmodium cynomolgi,Plasmodium vivax
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