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相关概念视频

Chromatin Modification in iPS Cells01:32

Chromatin Modification in iPS Cells

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Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
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The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
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相关实验视频

Updated: Jul 23, 2025

Mouse In Vivo Placental Targeted CRISPR Manipulation
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Mouse In Vivo Placental Targeted CRISPR Manipulation

Published on: April 14, 2023

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人类胎盘表现出一个独特的转录基因空白.

Sungsam Gong1, Francesca Gaccioli1, Irving L M H Aye1

  • 1Department of Obstetrics and Gynaecology, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK; Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.

Cell reports
|July 15, 2023
PubMed
概括
此摘要是机器生成的。

人类胎盘独特地缺乏许多转录,与其他器官不同. 这种枯竭突出了特定的胎盘功能,包括线粒体和多胺代谢.

关键词:
CP: 发育生物学科普:分子生物学 分子生物学

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siRNA Transfection and EMSA Analyses on Freshly Isolated Human Villous Cytotrophoblasts
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siRNA Transfection and EMSA Analyses on Freshly Isolated Human Villous Cytotrophoblasts

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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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科学领域:

  • 基因组学就是基因组学.
  • 分子生物学分子生物学
  • 人体生理学 人体生理学

背景情况:

  • 人类胎盘具有独特的基因组,具有高突变率和独特的基因表达.
  • 了解组织特异性基因表达对于破译器官功能至关重要.

研究的目的:

  • 为了识别与其他器官相比,在人类胎盘中缺少或减少的转录.
  • 为了将这些枯竭的转录与已知的胎盘功能相关联.

主要方法:

  • 在多个人体器官中进行比较转录基因分析.
  • 基因本体学 (GO) 分析,以识别枯竭的转录集中的丰富途径.

主要成果:

  • 胎盘表现出762个转录的显著枯竭,远远超过其他器官,如肝脏 (26个枯竭的转录).
  • 对GO的分析显示,在胎盘枯竭组中,线粒体功能基因 (例如,PGC-1α) 和多胺代谢基因的丰富.
  • 枯竭的转录还包括与神经元功能相关的转录,与胎盘生理学相一致.

结论:

  • 人类胎盘显示了一个独特的转录组形状,其特点是广泛的转录物耗尽.
  • 这种枯竭模式反映了胎盘的特殊功能,特别是线粒体生物发生和多胺代谢.
  • 这些发现为胎盘发育和功能的分子基础提供了洞察力.