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Author:
Date:
2018-04-05
[Abstract] Whole-lifespan single-cell analysis has greatly increased our understanding of fundamental cellular processes such as cellular aging. To observe individual cells across their entire lifespan, all progeny must be removed from the growth medium, typically via manual microdissection. However, manual microdissection is laborious, low-throughput, and incompatible with fluorescence microscopy. Here, we describe assembly and operation of the multiplexed-Fission Yeast Lifespan Microdissector (multFYLM), a high-throughput microfluidic device for rapidly acquiring single-cell whole-lifespan imaging. multFYLM captures approximately one thousand rod-shaped fission yeast cells from up to six different genetic backgrounds or treatment regimens. The immobilized cells are fluorescently imaged for over a ...
[摘要] 整个寿命的单细胞分析极大地增加了我们对细胞老化等基本细胞过程的理解。为了观察整个寿命期间的个体细胞，必须从生长培养基中移除所有后代，通常通过手动显微切割。然而，手动显微切割费力，低通量，并且与荧光显微镜不兼容。在这里，我们描述了多路复用裂变酵母寿命显微解剖器（multFYLM）的组装和操作，这是一种用于快速获取单细胞全寿命成像的高通量微流体装置。 multFYLM从多达六种不同的遗传背景或治疗方案中捕获约一千个杆状裂殖酵母细胞。将固定的细胞荧光成像超过一周，而将子代细胞从装置中取出。得到的数据集产生记录每个细胞复制寿命的高分辨率多通道图像。我们预计multFYLM将广泛适用于裂殖酵母（Schizosaccharomyces pombe）和其他对称分裂的单细胞生物的单细胞整个寿命研究。
【背景】细胞衰老导致细胞功能的累积下降，最终导致死亡。大多数关于细胞衰老的研究侧重于模型单细胞生物的复制寿命，例如出芽酵母酿酒酵母（Nyström和Liu，2014; Wasko和Kaeberlein，2014; Wierman和Smith，2014; Ruetenik和Barrientos ，2015）。细胞的复制寿命（RLS）被定义为母细胞在其生命过程中产生的女儿的数量（Henderson和Gottschling，2008; Sutphin等人，2014）。 ...
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