Extensive programmed centriole elimination unveiled in C. elegans embryos.

Extensive programmed centriole elimination unveiled in C. elegans embryos.
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DOI:
10.1126/sciadv.adg8682
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发表时间:
2023-06-02
期刊:
影响因子:
13.6
通讯作者:
Gonczy, Pierre
Gonczy, Pierre
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Kalbfuss, Nils;Gonczy, Pierre

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中心粒对基本的细胞过程至关重要,包括信号、运动和分裂。在发育中的生物体中,细胞周期退出后中心粒的存在程度尚不清楚。秀丽隐杆线虫的典型谱系使其非常适合研究这一问题。使用格子光片显微镜、相关光电子显微镜和谱系归属,我们发现约88%的细胞在胚胎发育过程中失去了中心粒。我们的分析表明,中心粒的消除是刻板的,在给定的细胞类型中,总是在给定的时间发生。此外,我们还证实,通过实验改变细胞命运会导致中心粒命运的相应变化。总体而言,我们发现了广泛的中心粒消除计划的存在,我们预计这将是对中心粒命运调控的广泛理解的范例。线虫发育过程中广泛的和定型的中心粒消除是由细胞命运控制的。
Centrioles are critical for fundamental cellular processes, including signaling, motility, and division. The extent to which centrioles are present after cell cycle exit in a developing organism is not known. The stereotypical lineage of Caenorhabditis elegans makes it uniquely well-suited to investigate this question. Using notably lattice light-sheet microscopy, correlative light electron microscopy, and lineage assignment, we found that ~88% of cells lose centrioles during embryogenesis. Our analysis reveals that centriole elimination is stereotyped, occurring invariably at a given time in a given cell type. Moreover, we established that experimentally altering cell fate results in corresponding changes in centriole fate. Overall, we uncovered the existence of an extensive centriole elimination program, which we anticipate to be paradigmatic for a broad understanding of centriole fate regulation. Extensive and stereotyped centriole elimination during C. elegans development is controlled by cell fate.
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