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相关概念视频

RNA Splicing01:32

RNA Splicing

56.2K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
56.2K
Alternative RNA Splicing02:18

Alternative RNA Splicing

21.1K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
21.1K

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相关实验视频

Updated: Jun 17, 2025

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition
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Detection of Alternative Splicing During Epithelial-Mesenchymal Transition

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在多发性硬化症中的微细胞特异性替代拼接变化.

Caiyun Qi1, Honglei Ren2, Yong Fan1

  • 1Department of Obstetrics and Gynecology; Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine; The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.

Aging
|August 8, 2024
PubMed
概括
此摘要是机器生成的。

这项研究揭示了多发性硬化症 (MS) 患者微质中的细胞类型特定的替代拼接 (AS) 变化. 这些发现突出了MS白质病理学的新型分子机制.

关键词:
替代性拼接是一种替代性的拼接.多发性硬化症多发性硬化症相互排斥的前代子.保持了内在的内.跳过一个exon.

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Quantitative Analysis of Alternative Pre-mRNA Splicing in Mouse Brain Sections Using RNA In Situ Hybridization Assay
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Quantitative Analysis of Alternative Pre-mRNA Splicing in Mouse Brain Sections Using RNA In Situ Hybridization Assay
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科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 是一个遗传学.
  • 分子生物学分子生物学

背景情况:

  • 异常的替代拼接 (AS) 涉及到多发性硬化症 (MS) 病原体.
  • 在MS中细胞类型特异性AS事件仍未得到充分研究,特别是在微质细胞中.

研究的目的:

  • 从多发性硬化症患者的白质中研究微质中细胞类型特定的替代拼接 (AS) 事件.
  • 在MS中确定新的分子途径和潜在的治疗点.

主要方法:

  • 利用了MS患者和对照组中排序的CD15-CD11b+微质细胞的RNA测序数据.
  • 应用rMATS来识别五种类型的AS事件:A3SS,A5SS,SE,RI和MXE.
  • 进行了差异基因表达分析和基因本体学 (GO) 丰富分析.

主要成果:

  • 在MS患者的微质中确定了132个显著的AS事件.
  • 跳过的外因子 (SE) 是最普遍的AS事件,其次是相互排斥的外因子 (MXE) 和保留的内因子 (RI).
  • 参与端粒维护 (SE),蛋白质折叠/线粒体组织 (MXE) 和免疫反应 (RI) 的基因显示出不同的AS模式.

结论:

  • 在MS患者的白质中发现了微质特异性AS变化.
  • 这些AS变化可能会导致MS的发病.
  • 提供了对新的病理机制和MS的潜在治疗策略的见解.