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相关概念视频

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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Embryonic Stem Cells00:57

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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
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相关实验视频

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Transcriptome Profiling of In-Vivo Produced Bovine Pre-implantation Embryos Using Two-color Microarray Platform
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卡内基第七阶段人类胚胎的空间转录特征.

Lina Cui1, Sirui Lin2,3, Xiaolong Yang4

  • 1Key Laboratory of Organ Regeneration and Reconstruction, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China.

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概括

这项研究使用空间转录学来分析胃化过程中的人类胚胎,揭示早期细胞类型规范和生殖细胞位置. 它提供了早期人类发展的3D地图.

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Transcriptional Analysis by Nascent RNA FISH of In Vivo Trophoblast Giant Cells or In Vitro Short-term Cultures of Ectoplacental Cone Explants
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Author Spotlight: A Pipeline to Analyze Lineage-Specific Mutant Embryos at Single-Cell Resolution
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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.
  • 人类胚胎学 人类胚胎学

背景情况:

  • 在哺乳动物发育过程中,胃流是建立胚胎层和身体轴的关键.
  • 由于对早期胚胎组织的访问有限,研究人类胃流很困难.

研究的目的:

  • 以单细胞分辨率使用空间转录学分析卡内基第7期人类胚胎.
  • 创建胚胎的3D模型并识别早期细胞系特征.

主要方法:

  • 空间转录学 (立体-seq) 应用于82个人类胚胎的连续冷切割.
  • 胚胎的三维重建. 胚胎的三维重建.
  • 在第二个胚胎中进行免疫光验证.

主要成果:

  • 人体胃流动过程中细胞类型的详细空间组织.
  • 早期介质皮亚型的特征和前部内皮内皮的存在.
  • 原始生殖细胞在连接的茎和黄囊中的定位. 血液形成.

结论:

  • 这项研究提供了前所未有的洞察力,以单细胞分辨率对人类胃流提供了前所未有的洞察力.
  • 该研究为早期人类发展研究提供了有价值的3D空间地图和数据集.