全基因组CRISPR屏幕识别了心脏血统的NF2-依附结合机制依赖性
Chang Jie Mick Lee1,2, Matias I Autio3, Wenhao Zheng1
1Cardiovascular Metabolic Disease Translational Research Programme, National University Health System, Centre for Translational Medicine, Singapore (C.J.M.L., W.H.Z., Y.Z., P.Y., X.Y., R.S.-Y.F.).
Circulation
|May 16, 2024
概括
通过消除发育障碍,神经纤维素2 (NF2) 对心肌细胞分化至关重要. NF2 损失导致心脏细胞身份的损失和非甲皮身份的增加.
科学领域:
- 干细胞生物学
- 发育生物学
- 分子生物学
背景情况:
- 心肌细胞分化需要通过BMP/Wnt信号清除抑制剂和调节剂.
- 在心脏发育中消除调节障碍的机制尚不清楚.
研究的目的:
- 确定人类胚胎干细胞中心肌细胞特异性的基本调节者.
- 阐明NF2在早期心脏谱系的作用.
主要方法:
- 在人类胚胎干细胞中使用MYH6-GFP记者进行全基因组CRISPR选.
- 通过RNA测序和蛋白质表达生成和分析NF2.
- 试验室差异化模型和蛋白质相互作用测试.
主要成果:
- NF2是早期心肌细胞特异性的上游驱动因素.
- NF2的丧失导致心肌细胞身份的丧失和非甲皮身份的增加.
- NF2和AMOT通过在粘附结处形成支架复合物来防止YAP激活.
结论:
- 在心肌细胞分化过程中,NF2对于消除调节障碍至关重要.
- NF2 阻断了 YAP 的抑制作用,促进了表皮- 介质细胞向心肌细胞的过渡.
相关概念视频
01:59CRISPR
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 Short...
02:53CRISPR and crRNAs
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...
02:46Genetic Screens
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
01:59CRISPR
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 Short...