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相关概念视频

Notch Signaling Pathway03:14

Notch Signaling Pathway

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The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
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Role Of Notch Signalling In Intestinal Stem Cell Renewal01:12

Role Of Notch Signalling In Intestinal Stem Cell Renewal

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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...
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Development of the Heart01:27

Development of the Heart

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The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
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相关实验视频

Updated: Jan 15, 2026

Isolation, Culture and Transduction of Adult Mouse Cardiomyocytes
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解码心脏再生的发育信号.

Thomas W C Knight1, Ngefor Asangwe1, Sadia Mohsin1

  • 1Aging and Cardiovascular Discovery Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA.

Stem cells (Dayton, Ohio)
|October 13, 2025
PubMed
概括
此摘要是机器生成的。

成人的心脏再生是有限的,因为心肌细胞在受伤后不会被替换. 在心脏原生细胞 (CPC) 中重新激活发育信号通路,特别是微RNA,显示了心脏修复的前景.

关键词:
心脏再生的心脏再生心肌细胞的增殖,心肌细胞的增殖.这就是miRNAs.干细胞是干细胞的组成部分.

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Apical Resection Mouse Model to Study Early Mammalian Heart Regeneration
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相关实验视频

Last Updated: Jan 15, 2026

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科学领域:

  • 心血管生物学 心血管生物学
  • 再生医学是一种再生医学.
  • 发展生物学 发展生物学

背景情况:

  • 成人的心脏有固定数量的心肌细胞 (CMs),并且在受伤后缺乏再生能力,往往导致心力衰竭.
  • 胚胎和早期的产后心脏具有固有的再生潜力,能够完全解决损伤.
  • 这种再生能力与独特的发育细胞和分子机制有关,这些机制在成人心脏中被抑制.

研究的目的:

  • 审查重新激活发育信号通路的策略,以促进成人心脏的心脏修复.
  • 专注于心脏原生细胞 (CPC) 和心肌细胞 (CM) 在这个过程中的作用.
  • 强调胚胎/发育期microRNAs在控制心脏再生的信号通路中的重要性.

主要方法:

  • 总结现有关于心脏修复发育信号再激活的研究.
  • 分析与发展因素设计的CPC的使用情况.
  • 研究细胞特异性向CMs传递因子以重新激活再生信号.

主要成果:

  • 重新激活发育信号可以增强成人心脏的心脏结构和功能.
  • 工程 CPC 或向 CM 提供因素可以利用再生潜力.
  • 胚胎/发育微RNA在信号通路中起着至关重要的作用,促进心脏修复.

结论:

  • 重新激活发育信号,特别是通过microRNAs,为成人心脏修复提供了一个有希望的治疗途径.
  • 使用CPC和CM具有增强再生信号的潜力.
  • 需要进一步的研究来克服局限性,并优化这些方法的临床应用.