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Right place, right time: Environmental sensing and signal transduction directs cellular differentiation and motility in Trypanosoma brucei
Molecular Microbiology ( IF 2.6 ) Pub Date : 2021-01-12 , DOI: 10.1111/mmi.14682
Breanna Walsh 1, 2 , Kent L Hill 1, 3
Affiliation  

Trypanosoma brucei and other African trypanosomes are vector-borne parasites that cause substantial human suffering across sub-Saharan Africa. The T. brucei life cycle is punctuated by numerous developmental stages, each occurring in a specific environmental niche and characterized by a unique morphology, metabolism, surface protein coat, and gene expression profile. The environmental cues and signaling pathways that drive transitions between these stages remain incompletely understood. Recent studies have started to fill this gap in knowledge. Likewise, several new studies have expanded our understanding of parasite movement through specific tissues and the parasite's ability to alter movement in response to external cues. Life cycle stage differentiation and motility are intimately integrated phenomena, as parasites must be at the right place (i.e., within a specific environmental milieu) at the right time (i.e., when they are appropriately staged and preadapted for perceiving and responding to signals) in order to complete their life cycle. In this review, we highlight some of the recent work that has transformed our understanding of signaling events that control parasite differentiation and motility. Increased knowledge of T. brucei environmental sensing and signal transduction advances our understanding of parasite biology and may direct prospective chemotherapeutic and transmission blockade strategies that are critical to eradication efforts.

中文翻译:

正确的地点,正确的时间:环境传感和信号转导指导布氏锥虫的细胞分化和运动

布氏锥虫和其他非洲锥虫是媒介传播的寄生虫,在撒哈拉以南非洲地区造成大量人类痛苦。布鲁氏锥虫生命周期被许多发育阶段打断,每个发育阶段都发生在特定的环境生态位中,并以独特的形态、新陈代谢、表面蛋白外壳和基因表达谱为特征。驱动这些阶段之间转变的环境线索和信号通路仍未完全了解。最近的研究已经开始填补这一知识空白。同样,几项新研究扩大了我们对寄生虫通过特定组织运动的理解,以及寄生虫根据外部线索改变运动的能力。生命周期阶段分化和运动是紧密结合的现象,因为寄生虫必须在正确的时间(即,在特定的环境环境中)出现在正确的位置(即,当它们被适当地安排和预先适应以感知和响应信号时)以完成它们的生命周期。在这篇综述中,我们重点介绍了一些最近的工作,这些工作改变了我们对控制寄生虫分化和运动的信号事件的理解。增加知识T. brucei环境传感和信号转导促进了我们对寄生虫生物学的理解,并可能指导对根除工作至关重要的前瞻性化疗和传播阻断策略。
更新日期:2021-01-12
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