从患有GNAO1 p.G203R变异的患者衍生的iPSC获得的皮层神经元显示出改变的分化和功能性质
Maria Cristina Benedetti1,2, Tiziano D'andrea3, Alessio Colantoni1,2
1Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy.
Heliyon
|March 4, 2024
概括
在GNAO1基因的致病变体导致神经发育障碍. 来自患者的干细胞显示出异常的神经分化和改变的神经通信,为GNAO1相关脑病变提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 致病性GNAO1基因变异与具有神经症状的严重脑病症有关.
- 目前针对GNAO1相关疾病的治疗方法仅具有症状,对潜在的病理生理学的理解有限.
研究的目的:
- 用患者衍生的诱导多能干细胞 (hiPSCs) 来描述一种新的GNAO1相关疾病体外模型.
- 研究GNAO1 p.G203R变异对神经分化和功能的影响.
主要方法:
- 从具有GNAO1 p.G203R变体和CRISPR-Cas9校正的同源控制的患者中生成hiPSC线.
- 用RNA-Seq分析评估神经分化过程中的基因表达.
- 功能性检测测量细胞内和神经元活动.
主要成果:
- 该GNAO1 p.G203R变体导致异常的细胞命运承诺和神经前代细胞的缺陷分化.
- 患者衍生的神经元表现出早期神经基因的减少表达和星细胞标记物的增加.
- 神经元显示基底细胞内的降低,自发活动减少,神经递质反应受损.
结论:
- 这种GNAO1 p.G203R变体导致神经发育表型,其特征是异常的神经元和质分化.
- 这些细胞缺陷导致神经元通信和信号传导的改变,导致与GNAO1相关的脑病变.
相关概念视频
01:21EPS and iPS Cells in Disease Research
2.8K
Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
2.8K
01:22iPS Cell Differentiation
2.7K
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
2.7K