足够的年龄成为一个模型? 关于成熟度在基于干细胞的神经精神疾病模型中的作用
Bingqing He1, Erik Smedler1,2,3
1Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Neuroscience applied
|February 9, 2026
概括
诱导多能干细胞 (iPSC) 提供了对精神障碍的洞察力,但它们的发育阶段很重要. 了解iPSC模型中的神经元成熟度对于发现疾病机制至关重要.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
背景情况:
- 精神疾病是导致残疾的主要原因,受遗传和环境的影响.
- 来自患者的诱导多能干细胞 (iPSCs) 对研究人类神经元疾病机制非常有价值.
- 目前的iPSC模型经常模仿早期大脑发育,这对研究晚发性疾病构成了挑战.
研究的目的:
- 审查发育时间对解释基于iPSC的发现在精神障碍研究中的影响.
- 探索细胞模型中神经元成熟度如何影响机械洞察力.
- 讨论在体外促进神经元衰老和利用发育不成熟的方法.
主要方法:
- 关于iPSC模型和精神障碍的现有文献的叙事综述.
- 分析iPSC衍生细胞的发育阶段如何影响疾病的相关性.
- 在体外促进神经元成熟或研究发育不成熟的技术的摘要.
主要成果:
- 在iPSC模型中的神经元成熟度显著影响了它们在研究具有不同发病时间的精神障碍方面的实用性.
- 细胞发育的差异可以限制或促进机械的理解.
- 新兴的方法显示出创造更多与发展相关的iPSC模型的希望.
结论:
- 在使用iPSC衍生神经细胞用于精神疾病研究时,发育时间是关键考虑因素.
- 利用成熟和不成熟的iPSC模型,可以全面了解疾病的发病性.
- 需要对体外神经元衰老和发育过程进行进一步的研究,才能充分利用iPSC技术.
相关概念视频
01:33Adult Stem Cells
33.9K
Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
33.9K
01:21Role-Based Identity
215
Role-based identities are central to understanding how individuals navigate social environments by adopting distinct self-conceptions aligned with various societal roles. These identities are not fixed traits but are constructed through personal actions and the social feedback individuals receive in context-specific interactions. Each social role, such as student, teacher, or friend, carries a set of expectations and norms that influence how people think, feel, and behave within that...
215
01:12Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.5K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.5K
01:13Induced Pluripotent Stem Cells
28.1K
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
28.1K
01:22Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.7K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.7K
02:18Intrinsically Disordered Proteins
19.6K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.6K