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在鱼类细胞枯竭中应用重复序列作为CRISPR/Cas9系统的目标

Yunsheng Zhang¹, Hu Xia², Wei Peng²

¹Hunan Provincial Key Laboratory for Health Aquaculture and Product Processing in Dongting Lake Area, Hunan Engineering Research Center of Aquatic Organism Resources and Environmental Ecology, Zoology Key Laboratory of Hunan Higher Education, Changde Research Center for Agricultural Biomacromolecule, Innovation Team of Microbial Technology, College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, Hunan, China. yskaoyan@163.com.

Marine biotechnology (New York, N.Y.)

|June 4, 2024

概括

与重复序列相结合的CRISPR/Cas9技术有效地消耗细胞. 这种方法在斑马鱼中实现了高细胞耗尽率,针对所有细胞或特定的原始生殖细胞 (PGC).

科学领域:

分子生物学分子生物学
遗传学是一个遗传学.
发展生物学发展生物学

背景情况:

具体的细胞枯竭对于研究细胞功能和组织再生至关重要.
现有的方法,包括CRISPR/Cas9,难以实现完全的细胞耗尽.
针对重复序列提供了一种新的策略,可以提高CRISPR/Cas9的有效性.

研究的目的:

调查CRISPR/Cas9针对斑马鱼细胞枯竭的重复序列的疗效.
评估实现一般细胞和特定原始生殖细胞 (PGC) 完全耗尽的可行性.

主要方法:

使用了CRISPR/Cas9系统与DANA-gRNA针对重复序列.
实验涉及将Cas9mRNA或等离子体注入斑马鱼的胚胎和胚胎.
通过使用PGC特异性促进物 (kop) 驱动Cas9表达,实现了对PGCs的特定向.

主要成果:

注射CRISPR/Cas9以重复序列为点的注射导致了大量的细胞亡和几乎完全的细胞消失.
针对PGCs的耗导致caspase-3活性显著增加,并提高P53,ku70和ku80mRNA的调节.
在目标胚胎中,在受精后24小时内无法检测到PGC.

结论:

将CRISPR/Cas9与重复序列相结合,可以在斑马鱼中有效地减少细胞.
这种策略对于广泛的细胞消除和特定的细胞类型向 (例如,PGC) 均有效.
重复序列是CRISPR/Cas9系统在细胞消除策略中的有效目标.

关键词:

克里斯普尔是什么意思?克里斯普尔是什么意思?这就是Cas9的情况.细胞枯竭细胞枯竭一个重复的序列.斑马鱼是一种斑马鱼.

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