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相关概念视频

TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

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The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
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Notch Signaling Pathway03:14

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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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Non-Canonical Wnt Signaling Pathways01:41

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Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
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Hedgehog Signaling Pathway02:33

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The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
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Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
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Overview of Cell Signaling

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Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
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相关实验视频

Updated: Jun 20, 2025

Stimulation of Notch Signaling in Mouse Osteoclast Precursors
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与Lgr6相关的信号通路用于调节骨质生成.

Justin S King1, Matthew Wan1, Yadav Wagley2

  • 1Department of Orthopaedic Surgery, The Musculoskeletal Research Institute, UCONN Health, Farmington, CT 06032, USA.

Bone
|July 21, 2024
PubMed
概括

氨酸丰富的重复含有G蛋白结合受体6 (Lgr6) 对于骨干细胞功能和骨愈合至关重要. 这项研究揭示了Lgr6

关键词:
这就是Bmp Bmp.骨再生 骨的再生骨周围骨的时间骨干细胞/原始细胞他们不想做.

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A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation
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Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
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相关实验视频

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Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
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科学领域:

  • 生物化学 生物化学
  • 细胞生物学 细胞生物学
  • 再生医学是一种再生医学.

背景情况:

  • 骨折愈合依赖于骨的自然修复机制,治疗选择有限.
  • 向骨干干细胞/原始细胞 (SSPCs) 为骨修复提供了一个有前途的治疗策略.
  • 了解SSPCs的分子调节对于开发新疗法至关重要.

研究的目的:

  • 调查氨酸丰富的重复含有G蛋白结合受体6 (Lgr6) 在骨干干细胞/原始细胞 (SSPC) 和骨质生成中的作用.
  • 探索Lgr6影响骨愈合和骨质分化的分子机制.
  • 确定增强骨折愈合的潜在治疗点.

主要方法:

  • 利用生物化学方法和RNA测序来分析基因表达.
  • 采用了已公布的单细胞数据的生物信息分析.
  • 在人类和小鼠细胞的骨形态遗传蛋白 (Bmp) 介导的骨质发生过程中研究了Lgr6表达.

主要成果:

  • 在SSPC亚群中确定了Lgr6表达,这对于维持骨体积和骨折愈合至关重要.
  • 证明Lgr6影响了规范Wnt (cWnt) 独立和依赖的路径.
  • 发现Bmp信号元件,包括pSMAD和基因本体学途径,在Lgr6缺乏的细胞中被下调.
  • 在Bmp介导的骨质生成过程中观察到增强的Lgr6表达.

结论:

  • 在骨质生成中发现了Bmp信号传递和Lgr6之间的分子相互依赖.
  • Lgr6在调节SSPC行为和骨再生方面发挥着重要作用.
  • 这些发现为骨质生成提供了新的见解,并确定了改善骨折愈合疗法的潜在目标.