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相关概念视频

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Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
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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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Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
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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.
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Isolation of Epithelial Cells from Human Dental Follicle
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在牙根发育过程中,Bmp9调节HERS中的细胞增殖和细胞间结合.

Chang Liu1,2, Hongyan Yuan1,2, Jindie Huang1,2

  • 1Chongqing Key Laboratory for Oral Diseases, The Affiliated Hospital of Stomatology of Chongqing Medical University, Chongqing 401147, China.

Genes & diseases
|October 27, 2025
PubMed
概括

骨形态遗传蛋白9 (BMP9) 对于牙根的发育至关重要. 在小鼠中,BMP9缺乏导致根较短,牙较薄,牙细胞功能受损,影响整体牙形成.

关键词:
骨形态遗传蛋白 9 骨形态遗传蛋白 9牙产生的过程赫特维格的上皮细胞根盖.形体的分化 形体分化牙根的发育 牙根的发育

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科学领域:

  • 发展生物学 发展生物学
  • 细胞生物学 细胞生物学
  • 生物化学 生物化学

背景情况:

  • 牙根的形成涉及赫特维格的上皮根盖 (HERS) 和介质细胞之间的复杂相互作用.
  • 骨形态遗传蛋白9 (BMP9) 是一个信号分子,与生长和分化有关,但其在牙发育中的作用尚未完全理解.

研究的目的:

  • 研究BMP9信号传导在牙根发育中的特定功能,重点关注其对HERS和质细胞的影响.

主要方法:

  • 使用Bmp9淘汰 (Bmp9-KO) 的小鼠模型,并将牙形成与野生类型 (WT) 的 littermates进行了比较.
  • 采用微型计算机断层扫描 (微型CT) 和血素-素染色进行形态分析.
  • 进行免疫组织化学和定量PCR以评估细胞分化和基因表达.

主要成果:

  • 与WT小鼠相比,Bmp9-KO小鼠表现出明显更短的下第一个牙根,更宽的角孔,以及更薄的牙.
  • BMP9 缺乏症会影响质细胞分化和分泌活动.
  • 缺少BMP9会降低HERS细胞的增殖和增加细胞间接口,影响根牙的形成和关闭.

结论:

  • 在牙根发育过程中,BMP9信号传递对于调节牙芽细胞功能和HERS行为至关重要.
  • BMP9在确定根的大小,牙厚度和角孔关闭方面发挥着至关重要的作用.
  • 研究结果提供了关于BMP9在根部发育中的意义的见解,并表明了牙根再生策略的潜力.