相关实验视频
Updated: Feb 28, 2026

09:05
Pooled CRISPR-Based Genetic Screens in Mammalian Cells
Published on: September 4, 2019
23.4K
克里斯普尔-Cas9查和模拟感染的转录基因识别了巴克特里亚驼先天免疫力的关键驱动因素
Lili Guo1,2,3, Shan Gao4, Zaixia Liu2,5
1College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Animals : an open access journal from MDPI
|February 27, 2026
概括
巴克特里亚驼具有独特的先天免疫力. 这项研究使用CRISPR查和转录学来绘制他们的免疫基因,识别关键的抗病毒和抗菌基因,如HSP90AA1和CSF1.
科学领域:
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
- 比较生物学的比较生物学
背景情况:
- 细菌驼 (Camelus bactrianus) 由于其独特的适应性,是先天免疫研究的宝贵模型.
- 对它们天生的免疫基因库和功能驱动因素的有限理解阻碍了研究.
- 系统地剖析驼天生的免疫力是必要的,以了解进化适应.
研究的目的:
- 系统地绘制巴克特里亚驼的先天免疫基因谱和调节机制.
- 鉴定参与抗病毒和抗菌免疫反应的关键功能基因.
- 为哺乳动物免疫系统的进化适应提供见解.
主要方法:
- 集成的CRISPR-Cas9淘汰查与时间解析的转录基因分析.
- 挑战了驼皮肤纤维细胞,具有病毒模仿多样性 (I:C) 和细菌模仿LPS.
- 分析了基因表达动态和共同表达网络.
主要成果:
- 确定了59个关键基因,在病原体挑战下赋予生存优势.
- 发现了抵抗病毒与细菌模仿的独特基因组,表明不同的遗传基础.
- 确定HSP90AA1 (抗病毒) 和CSF1 (抗菌) 作为具有动态调节作用的关键基因.
结论:
- 这项研究为巴克特里亚驼的先天免疫格局及其动态调节提供了第一个系统的绘制.
- 发现了一个共享的核心免疫反应程序,具有刺激特异性调节.
- 为了解驼动物免疫生物学和进化免疫适应提供了一个新的框架.
相关概念视频
CRISPR and crRNAs
19.4K
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
19.4K
The Antiviral System of Bacteria and Archaea: CRISPR
821
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this...
821
CRISPR/Cas9 Genome Editing
2.2K
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
2.2K
CRISPR
58.3K
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...
58.3K

