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皮质3D网络的电生理特征是通过支架特性深度调节的

Francesca Callegari¹, Martina Brofiga, Mariateresa Tedesco¹

¹Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy.

APL bioengineering

|August 28, 2024

概括

选择正确的3D支架对于功能神经元模型至关重要. 玻璃微珠在支持丰富的神经网络活动方面提供了卓越的性能,并且可以用于临床前研究.

科学领域:

神经科学是一个神经科学.
生物材料工程生物材料工程
组织工程是组织工程.

背景情况:

三维 (3D) 对准确的解剖学和疾病模型至关重要.
了解神经元计算和意识行为仍然是一个重大挑战.
目前还缺乏神经元组织的综合模型.

研究的目的:

为了研究不同3D支架对神经网络活动的影响.
确定开发功能神经元结构的最佳3D策略.
为了比较PDMS海绵,水凝和玻璃微珠用于神经组织建模.

主要方法:

利用微电极阵列记录神经网络活动.
在三种不同的支架类型中比较神经元活动:PDMS海绵,水凝和玻璃微珠.
分析了峰值活动,爆发动态和网络爆发传播.

主要成果:

脚手架类型显著影响了破裂动态,包括频率,密度和随机尖峰的发生.
对于每个脚手架,观察到不同的爆发生成模式和网络爆发传播趋势.
与其他支架相比,玻璃微珠显示出更好的可重复性,有效性和可扩展性.
神经元结构中的功能变化与3D空间组织有关.

结论:

并非所有3D神经元结构都支持相同水平的活动丰富性.
脚手架的选择极大地影响了神经网络的功能.
玻璃微珠是开发用于临床前研究的功能3D神经元单元的有前途材料.

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