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在Neospora caninum中使用CRISPR-Cas9系统对三种新型密集颗粒蛋白的功能性表征

Zhenxiao Lu¹, Jinyi Zhang¹, Yuhan Zhou¹

¹College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China.

|May 20, 2024

概括

尼奥斯波拉犬密颗粒蛋白NcGRA61和NcGRA85对于寄生虫的生存并不是必不可少的. 然而,NcGRA27对寄生虫生长和毒性至关重要,将其确定为潜在的Neospora caninum毒性因子.

科学领域:

兽医寄生虫学兽医寄生虫学
分子寄生虫学分子寄生虫学
微生物学微生物学

背景情况:

尼奥斯波拉犬类在牛群中造成重大经济损失,在狗群中引起神经疾病.
密集颗粒蛋白 (GRAs) 是宿主-寄生虫相互作用的关键,但许多仍未表征.
了解GRA功能对于控制Neospora caninum感染至关重要.

研究的目的:

为了描述Neospora caninum的新型密集颗粒蛋白 (GRAs).
研究ncGRA27,ncGRA61和ncGRA85在寄生虫生物学和毒性中的作用.
为了确定Neospora caninum的潜在毒性因素.

主要方法:

使用了依靠近距离的生物素识别 (BioID) 和C端内源基因标记.
使用CRISPR-Cas9介导的同源重组来产生淘汰菌株.
在体外复制,斑块检测和小鼠感染模型中涉及的表型表征.

主要成果:

发现ncGRA61和ncGRA85对寄生虫的复制,生长和小鼠病毒性无关紧要.
删除NcGRA27显著降低了Neospora caninum在体外复制和生长.
在小鼠感染模型中,ncGRA27淘汰寄生虫的病原性降低.

结论:

在Neospora caninum的生长和毒性中,ncGRA27起着至关重要的作用.
NcGRA27被确定为Neospora caninum的潜在新型毒性因子.
这些发现为进一步研究Neospora caninum病原性提供了基础.

关键词:

克里斯普尔-Cas9是什么意思密集的颗粒蛋白质是密集的颗粒蛋白质.尼奥斯波拉犬 (Neospora caninum) 是一种动物.亚细胞局部化的局部化.病毒性病毒性

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相关概念视频

CRISPR

CRISPR

Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...