来自人类多能干细胞的前庭内耳器官的生成和表征
Wouter H van der Valk1,2,3,4,5, Carl Nist-Lund1,2,3, Jingyuan Zhang1,2,3
1Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA.
Nature protocols
|June 2, 2025
概括
研究人员开发了一种新方法,从干细胞中制造人体内耳器官 (IEO). 这些器官模拟内耳发育和疾病,为治疗策略提供了新的途径.
科学领域:
- 生物技术是生物技术.
- 发展生物学 发展生物学
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 内耳疾病影响全球数百万人,除了技术辅助之外,治疗选择有限.
- 目前的研究很大程度上依赖于动物模型,突出了人类体外系统的需要.
- 干细胞分化对模拟内耳发育和疾病具有前景.
研究的目的:
- 为生成人类内耳器官 (IEO) 提出一个协议.
- 研究指导内耳有机体发育的信号线索.
- 建立一个研究内耳生物学和疾病的平台.
主要方法:
- 利用基于干细胞的协议,从皮肤有机体生成中调整.
- 模仿胎儿内耳发育线索以引导干细胞分化.
- 采用先进的成像和切割技术进行有机体分析.
主要成果:
- 成功生成了能够培养感官毛细胞的内耳器官 (IEO).
- 阐明了影响内耳有机体发育的关键信号通路.
- 已证明有机体保持长达150天,以便进一步研究.
结论:
- 内耳器官 (IEO) 为人类内耳发育提供了有价值的体外模型.
- IEO促进了对内耳疾病机制的研究.
- 这个平台支持开发用于听力和平衡障碍的新疗法策略.
相关概念视频
01:29The Vestibular System
40.2K
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
40.2K
01:15Equilibrium and Balance
5.1K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
5.1K