Linking nutrient sensing and gene expression in Plasmodium falciparum blood-stage parasites.

Linking nutrient sensing and gene expression in Plasmodium falciparum blood-stage parasites.
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DOI:
10.1111/mmi.14652
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发表时间:
2021-05
影响因子:
3.6
通讯作者:
Duraisingh MT
Duraisingh MT
中科院分区:
生物学2区
文献类型:
--
作者:
Kumar M;Skillman K;Duraisingh MT

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疟疾是全世界最威胁生命的传染病之一,由人类感染疟原虫属寄生虫引起。疟原虫寄生虫的复杂生命周期在两个宿主之间共享,感染多种细胞类型,寄生虫需要通过显著不同的代谢环境适应生存和传播。仅在血液阶段,由于宿主饮食营养、细胞嗜性和发病机制的差异,寄生虫会遇到关键营养物质(包括糖、氨基酸和脂质)水平的变化。在这篇综述中,我们考虑了最致命的疟疾寄生虫,恶性疟原虫,用于感测营养水平和引起血液阶段感染过程中基因表达的变化的机制。这些变化是由几种代谢中间产物及其相应的传感蛋白引起的。感测不同的营养信号可以驱动恶性疟原虫改变增殖、抗原变异和传播的关键血液阶段过程。
Malaria is one of the most life-threatening infectious diseases worldwide, caused by infection of humans with parasites of the genus Plasmodium. The complex life cycle of Plasmodium parasites is shared between two hosts, with infection of multiple cell types, and the parasite needs to adapt for survival and transmission through significantly different metabolic environments. Within the blood-stage alone, parasites encounter changing levels of key nutrients, including sugars, amino acids, and lipids, due to differences in host dietary nutrition, cellular tropism, and pathogenesis. In this review, we consider the mechanisms that the most lethal of malaria parasites, Plasmodium falciparum, uses to sense nutrient levels and elicit changes in gene expression during blood-stage infections. These changes are brought about by several metabolic intermediates and their corresponding sensor proteins. Sensing of distinct nutritional signals can drive P. falciparum to alter the key blood-stage processes of proliferation, antigenic variation and transmission.
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