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相关概念视频

Teeth01:15

Teeth

369
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
369
Determination01:51

Determination

18.3K
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...
18.3K

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相关实验视频

Updated: Jun 18, 2025

Temporal Ordering of Dynamic Expression Data from Detailed Spatial Expression Maps
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在早期人类牙生成过程中的空间和时间基因表达模式.

Yejia Yu1, Kun Wang2, Zhuo Wang1

  • 1State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.

Frontiers in bioengineering and biotechnology
|July 31, 2024
PubMed
概括
此摘要是机器生成的。

这项研究详细介绍了使用RNA测序和激光捕获微解剖的早期人类牙发育. 确定了血管新生和ECM组织等关键事件,为牙再生提供了洞察力.

关键词:
在RNA测序过程中,RNA测序人类落叶牙的细菌激光捕获微解剖的微解剖方法牙的生长过程 (odontogenesis)种类比较物种比较

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相关实验视频

Last Updated: Jun 18, 2025

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科学领域:

  • 发展生物学 发展生物学
  • 基因组学就是基因组学.
  • 再生医学是一种再生医学.

背景情况:

  • 牙生成,牙形成的过程,对于治疗牙异常和牙脱落至关重要.
  • 人类早期的牙发育仍未得到充分研究,这限制了我们对牙发育和再生策略的理解.

研究的目的:

  • 为了研究早期人类落叶牙细菌的时空转录基因景观.
  • 为了确定关键的分子事件和途径,涉及到人类的牙生成.
  • 为未来的牙再生研究提供基础.

主要方法:

  • 结合RNA测序 (RNA-seq) 与激光捕获微解剖 (LCM) 进行高分辨率的转录基因分析.
  • 分析了从顶部到早期钟阶段的人类落叶牙菌.
  • 进行了与小鼠的物种比较,以确定保存的发育事件.

主要成果:

  • 在造过程中确定了标志性事件,包括血管生成,骨化,轴突生成和细胞外矩阵 (ECM) 组织.
  • 强调了ECM在调节牙诱导能力方面的关键作用.
  • 揭示了人类和小鼠之间保存的牙产生过程.

结论:

  • 这项研究提供了早期人类牙发育的全面的转录图.
  • 这些发现为了解牙发育和牙再生的潜在策略提供了新的视角.
  • 丰富了在关键早期阶段对人类牙发育的转录数据库.