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人类神经器官的独特的空间图案和转录形态景观,通过局部递送形态原体

Feiyu Yang¹, Narciso Pavon², Tatsuya Matsubara³

¹Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; Department of Mechanical and Industrial Engineering, UMass Amherst, Amherst, MA 01003, USA.

|February 24, 2026

概括

研究人员开发了一种用于人类神经器官的新型渐变发生器,可以精确控制大脑区域的发育. 这项技术促进了对人类大脑区域化和细胞命运规范至关重要的形态变异动态的研究.

科学领域:

神经科学是一个神经科学.
发展生物学发展生物学
生物技术是生物技术.

背景情况:

人类大脑的发育依赖于定位模式的诱导信号.
现有的方法很难在神经器官中创建稳定的形态基因梯度以实现区域化.
了解人类大脑区域化中的个体形态原体作用是有限的.

研究的目的:

开发一种新的方法,在人类神经器官中产生稳定的空间形态基因梯度.
研究特定形态基因梯度对人类大脑区域化的影响.
建立一个框架来建模神经器官系统中的形态原体动力学.

主要方法:

开发了一种无Matrigel的基于被动扩散的形态原梯度发生器 (PdMG).
应用于Sonic hedgehog/Wingless/int1 (WNT) 抑制剂,WNT,以及对人类神经器官的视网酸梯度.
利用空间转录学来分析有机体区域化,神经发生和细胞迁移.

主要成果:

在使用PdMG.成功地在人类神经器官中建立了的外源空间形态基因梯度.
达到了背腹前脑,正尾前脑中脑和正尾后脑前脑后脑的模式.
在有图案的有机体中观察到强大的区域化,活跃的神经发生和GABAergic内部神经元迁移.

结论:

PdMG系统提供了一种可靠的方法,用于在神经器官中创建受控的形态基因梯度.
这项技术能够对人类大脑中关键的发育过程进行强有力的区域化和建模.
这项研究为研究人类神经发育中的时空形态变异动态提供了一个框架.

关键词:

背部 - 腹部背部 - 腹部形态原体的梯度渐变.神经器官有机体神经器官有机体图案设计图案设计面部-尾部 - 尾部 - 尾部

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