人类感官类神经元培养 - 一个优化的协议.
Nicole Michelle Schottmann1, Julia Grüner1, Frederik Bär1
1Department of Neurology, University Hospital Würzburg, Würzburg, Germany.
Frontiers in neuroscience
|October 18, 2024
概括
优化人类诱导的多能干细胞 (iPSC) 分化成诱导的感官类神经元 (iSN) 是至关重要的. 24小时用10微米的floxuridine (FdU) 治疗有效地减少非iSN细胞,提高疾病建模和药物发现的培养纯度.
科学领域:
- 干细胞生物学 干细胞生物学
- 神经科学是一个神经科学.
- 生物技术是生物技术.
背景情况:
- 人类诱导的多能干细胞 (iPSCs) 对于疾病建模和药物测试至关重要.
- 将其分化为诱导感官类神经元 (iSN) 是一个关键的应用,但培养纯度仍然是一个挑战.
- 来自iPSC的细胞群的变异性会影响研究中的可靠性和可重复性.
研究的目的:
- 通过最小化非iSN细胞种群来优化iSN培养条件.
- 在分化过程中增强iSN的生存和质量.
- 为可靠的基于iPSC的研究建立标准化的协议.
主要方法:
- 使用一项既定的协议,iSN与健康对照iPSC线路进行了区分.
- 优化策略包括floxuridine (FdU) 或AraC治疗,磁激活细胞分类 (MACS),早期传递和重叠.
- 细胞活力和iSN与总细胞比率使用发光试验和免疫细胞化学进行了评估.
主要成果:
- 早期传递和MACS并没有改善iSN纯度,并且可能降低神经元质量.
- 使用FdU或AraC的高度或长时间化导致过度的细胞死亡.
- 在分化后使用10μM FdU进行了24小时的治疗,可以选择性地减少非iSN细胞,增加纯度而不损害iSN活力或功能. 更换也有助于纯度.
结论:
- 在分化后24小时使用10μM FdU进行治疗是改善iSN培养物的纯度的一个有希望的方法.
- 这种优化的协议可以显著有利于疾病建模和药物发现的下游应用.
- 为了提高可重现性和适用性,需要在多个iPSC线路上进行进一步的验证和参数优化.
相关概念视频
Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
Neural Circuits
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.


