经过光遗传修饰的人类胚胎干细胞衍生的视神经元与耳细胞核建立了功能性突触连接.
Yanni Chen1,2,3,4, Wenbo Mu1,2,3,4, Yongkang Wu5
1Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
Journal of tissue engineering
|August 2, 2024
概括
人类胚胎干细胞 (hESCs) 被转化为耳神经元 (ONs),用于治疗聋. 这些干细胞衍生的眼神经元 (eON) 成功形成了功能连接,为螺旋质神经元 (SGN) 损伤提供了潜在的治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 干细胞生物学 干细胞生物学
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 螺旋质神经元 (SGN) 损伤是导致聋的重要原因.
- 干细胞治疗是恢复听觉回路的有希望的方法.
- 准确评估干细胞衍生的神经元功能对于治疗开发至关重要.
研究的目的:
- 开发一种用于将人类胚胎干细胞 (hESCs) 转化为眼神经元 (ONs) 的新方法.
- 评估这些衍生眼神经元 (eON) 在听觉回路中的功能连接.
- 评估eONs作为SGN相关聋的治疗来源的潜力.
主要方法:
- 将hESCs转化为眼神经元 (eON).
- 具有老鼠耳核 (CN) 器官类型切片或耳核神经元 (CNN) 的eONs的共同培养.
- 光遗传刺激以评估功能性突触连接和神经元活动.
主要成果:
- eONs将SGN标记和预测过程表达为老鼠CN切片.
- 突触素1和VGLUT表达证实了培养中的突触集成.
- 对eONs的光遗传刺激导致CNN中的动作潜力尖峰和电流 (I) 增加,证明了功能性突触连接.
结论:
- 干细胞衍生的视神经元 (eONs) 可以与耳核神经元建立功能性突触连接.
- eONs显示出作为治疗候选人治疗由螺旋结神经元损伤引起的聋的潜力.
- 这项研究为评估干细胞衍生神经元在听觉电路中的功能整合提供了一种新的方法.
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