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Chromatin immunoprecipitation, or ChIP, is an antibody-based technique used to identify sites on DNA that bind to transcription factors of interest or histone proteins. It also helps determine the type of histone modifications such as acetylation, phosphorylation, or methylation.
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ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...
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In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
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Systems Biology of Metabolic Regulation by Estrogen Receptor Signaling in Breast Cancer
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化学素在子宫内膜功能障碍中的作用:从转录基因分析的见解

Ming Yu1, Yichun Wang1,2, Jinxuan Cai1,3

  • 1Center for Energy Metabolism and Reproduction, Shenzhen Key Laboratory of Metabolic Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.

Journal of cellular and molecular medicine
|March 21, 2025
PubMed
概括

与肥胖相关的子宫内膜功能障碍可能源于过量的化学物质. 这种阿迪波金破坏脂质代谢,促进细胞变化,并抑制对怀孕至关重要的STAT3通路.

关键词:
12Z细胞是一个12Z细胞.这是一种阿迪波基因 (adipokine).化学 化学 化学 化学 化学 化学 化学宫内膜的受体性 宫内膜的受体性转录组分析 转录组分析

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科学领域:

  • 生殖生物学 生殖生物学
  • 内分泌学 在内分泌学.
  • 细胞和分子生物学是细胞和分子生物学.

背景情况:

  • 子宫内膜对于月经和怀孕至关重要,对荷尔蒙变化很敏感.
  • 肥胖与子宫内膜功能障碍有关,影响女性的健康和生育能力,但机制尚不清楚.
  • 化学素是一种阿迪波金,通过它的受体影响免疫和新陈代谢.

研究的目的:

  • 通过RNA测序来研究化学素对人类子宫内膜上皮细胞的影响.
  • 阐明肥胖症中化学素诱导的子宫内膜异能背后的分子机制.

主要方法:

  • 利用表达子宫内膜和上皮细胞标记的12Z细胞作为模型系统.
  • 进行RNA测序 (RNA-Seq) 来分析全球基因表达变化.
  • 进行了主要成分分析 (PCA),差异表达分析 (DEA) 和基因组丰富分析 (GSEA).

主要成果:

  • 化学素治疗显著改变了子宫内膜细胞转录组.
  • 在化学素暴露时鉴定出388个差异表达基因 (DEGs).
  • 观察到脂质新陈代谢的抑制,诱导类似上皮层-介质细胞转换 (EMT) 的过程,以及细胞衰老.
  • 发现化学素抑制了STAT3信号通路,这对于子宫内膜受体性至关重要.

结论:

  • 过度产生的化学素有助于肥胖的子宫内膜功能障碍.
  • 化学素会破坏子宫内膜的关键功能,包括脂质代谢和STAT3信号传递.
  • 这些发现提供了关于肥胖相关不孕症的病理机制的见解.