Fighting drug-resistant Plasmodium falciparum: the challenge of artemisinin resistance

被引:66
|
作者
Wongsrichanalai, C. [1 ]
Sibley, C. H. [1 ]
机构
[1] Univ Washington, Sch Med, Dept Genome Sci, WorldWide Antimalarial Resistance Network, Seattle, WA USA
关键词
ACTs; artemisinin resistance; day3; parasitaemia; Mekong; molecular markers; Plasmodium falciparum; PFMDR1 COPY NUMBER; ARTEMETHER-LUMEFANTRINE; ARTESUNATE-MEFLOQUINE; PARASITE CLEARANCE; MOLECULAR SURVEILLANCE; COMBINATION THERAPY; CYTOCHROME-B; MALARIA; SELECTION; POLYMORPHISMS;
D O I
10.1111/1469-0691.12316
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Following a decade-long scale up of malaria control through vector control interventions, the introduction of rapid diagnostic tests and highly efficacious Artemisinin-based Combination Therapy (ACT) along with other measures, global malaria incidence declined significantly. The recent development of artemisinin resistance on the Cambodia-Thailand border, however, is of great concern. This review encompasses the background of artemisinin resistance in Plasmodium falciparum, its situation, especially in the Greater Mekong Sub-region (GMS), and the responses taken to overcome this resistance. The difficulties in defining resistance are presented, particularly the necessity of measuring the clinical response to artemisinins using the slow parasite-clearance phenotype. Efforts to understand the molecular basis of artemisinin resistance and the search for molecular markers are reviewed. The markers, once identified, can be applied as an efficient tool for resistance surveillance. Despite the limitation of current surveillance methods, it is important to continue vigilance for artemisinin resistance. The therapeutic efficacy in vivo study network for monitoring antimalarial resistance in the GMS has been strengthened. GMS countries are working together in response to artemisinin resistance and aim to eliminate all P. falciparum parasites. These efforts are crucial since a resurgence of malaria due to drug and/or insecticide resistance, program cuts, lack of political support and donor fatigue could set back malaria control success in the sub-region and threaten malaria control and elimination if resistance spreads to other regions.
引用
收藏
页码:908 / 916
页数:9
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