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通过CRISPR-Cas9介导的prmt5基因淘汰及其在干扰素调节中的关键作用

Qinghua Zeng¹, Jingjing Cao², Fei Xie³

¹Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Zhimin Street, Qingshan Lake, Nanchang, 330045, P.R. China.

Poultry science

|January 26, 2024

概括

的PRMT5蛋白抑制了干扰素β (IFN-β) 的激活. 在细胞中淘汰PRMT5基因增加了IFN-β的产生,揭示了它在免疫抑制中的作用.

科学领域:

免疫学免疫学免疫学
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

蛋白质氨酸甲基转移酶5 (PRMT5) 是氨酸二甲基化中的关键酶,在哺乳动物细胞中具有已知的功能.
在细胞免疫力中PRMT5的特定作用和调节,特别是关于干扰素通路,仍然在很大程度上未被探索.

研究的目的:

在细胞中研究PRMT5 (chPRMT5) 的表达,定位和功能.
阐明chPRMT5在调节干扰素-β (chIFN-β) 途径和先天免疫反应中的作用.

主要方法:

西方涂抹和免疫光测定chPRMT5表达和定位在各种组织.
编辑CRISPR/Cas9基因以创建PRMT5缺乏的DF-1细胞系 (prmt5-/-).
路西法酶记者测定和过度表达研究以评估chIFN-β激活和干扰素刺激的基因表达.

主要成果:

PRMT5在多种组织中表达,并定位到细胞质和细胞核.
在子宫外表达chPRMT5抑制chMDA5诱导的chIFN-β激活.
缺乏PRMT5的DF-1细胞表现出正常的形态和增殖,但与野生类型细胞相比,IFN-β的产生显著增加.
发现chPRMT5可以抑制IFN-β的产生和干扰素刺激的基因表达.

结论:

PRMT5通过抑制IFN-β的产生,在抑制先天免疫反应方面发挥着重要作用.
这项研究确定了chPRMT5与细胞中干扰素通路的调节之间的功能联系,为进一步研究禽类免疫学提供了基础.

关键词:

这就是CRISPR-Cas9的特征.IFN-β反应的反应肉PRMT5的使用情况淘汰赛淘汰赛是一个淘汰赛.

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