相关实验视频

Updated: May 5, 2026

Differentiation of a Human Neural Stem Cell Line on Three Dimensional Cultures, Analysis of MicroRNA and Putative Target Genes

Differentiation of a Human Neural Stem Cell Line on Three Dimensional Cultures, Analysis of MicroRNA and Putative Target Genes

Published on: April 12, 2015

在皮质形成过程中,由精神分裂症相关的AS3MT^d2d3异形决定细胞命运

Seunghyun Kim¹, Youngsik Woo¹, Dahun Um¹

¹Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.

Science advances

|March 28, 2025

概括

AS3MT基因的遗传变异,特别是AS3MT^d2d3异型,与精神分裂症有关. 这项研究使用了小鼠模型来显示AS3MT^d2d3会扰乱大脑发育,这可能解释早期精神分裂症的病理.

科学领域:

神经科学是一个神经科学.
遗传学遗传学是一个
发展生物学发展生物学

背景情况:

精神分裂症与神经发育因素有关.
全基因组关联研究表明AS3MT基因,特别是AS3MT^d2d3异型,在精神分裂症风险中.

研究的目的:

研究将AS3MT^d2d3表达与精神分裂症病理生理学联系起来的生物机制.
建立和描述一个转基因小鼠模型 (AS3MT^d2d3-Tg) 来研究AS3MT^d2d3在大脑发育中的作用.

主要方法:

在皮层神经干细胞中产生异位AS3MT^d2d3-Tg表达的小鼠.
进行行为分析 (感官运动门,社交能力) 和神经解剖学评估 (心室大小).
利用单细胞和单核RNA测序来分析脑细胞组成和基因表达. 通过结构和细胞生物学技术研究AS3MT^d2d3的局部化和相互作用.

主要成果:

AS3MT^d2d3-Tg小鼠表现出放大心室和缺陷的感觉运动门和社交能力.
RNA测序揭示了AS3MT^d2d3-Tg大脑中的细胞命运失衡和改变激发性神经元组成.
AS3MT^d2d3局限于中心体,破坏了线粒状的方向和神经分化,部分是通过NPM1. 在AS3MT^d2d3中的疏水性残留物对其致病功能至关重要.

结论:

神经干细胞中AS3MT^d2d3的异位表达导致与精神分裂症相关的神经发育异常.
AS3MT^d2d3破坏细胞分裂和分化,为早期精神分裂症的发病提供了一个潜在的分子机制.
这种转基因小鼠模型为进一步研究精神分裂症的遗传和发育起源提供了有价值的工具.

更多相关视频

Ex Utero Electroporation and Organotypic Slice Culture of Mouse Hippocampal Tissue

Ex Utero Electroporation and Organotypic Slice Culture of Mouse Hippocampal Tissue

Published on: March 4, 2015

Modeling Human Cerebellar Development In Vitro in 2D Structure

Modeling Human Cerebellar Development In Vitro in 2D Structure

Published on: September 16, 2022

相关概念视频

Determination

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...