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相关概念视频

Formation of Muscle Fibers from Myoblasts01:13

Formation of Muscle Fibers from Myoblasts

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De novo myogenesis, or the formation of muscle fibers, begins during the early embryonic stages. The skeletal muscle is formed from somites– blocks of embryonic cell layers. The somites are further divided into dermatomes, myotomes, sclerotomes, and syndetomes. Among these, the myotomes give rise to muscle fibers.
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
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相关实验视频

Updated: May 28, 2025

Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue
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Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue

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生后肌肉成熟的转录学表征.

Alix Simon1, Sarah Djeddi1, Pauline Bournon1

  • 1Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS UMR 7104, INSERM UMRS 1258, Université de Strasbourg, 67404 Illkirch, France.

Disease models & mechanisms
|February 13, 2025
PubMed
概括

这项研究揭示了小鼠骨肌肉发育过程中的关键基因表达和拼接变化. 这些发现提高了对肌肉成熟的理解,并有助于诊断肌肉疾病.

关键词:
在Lrp4中使用.另一个替代拼接.不同表达式的差异表达式肌肉病症 肌肉病症是指肌肉病症.骨肌肉成熟的过程

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Cryosectioning of Contiguous Regions of a Single Mouse Skeletal Muscle for Gene Expression and Histological Analyses
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Cryosectioning of Contiguous Regions of a Single Mouse Skeletal Muscle for Gene Expression and Histological Analyses

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Skeletal Muscle Gender Dimorphism from Proteomics
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Skeletal Muscle Gender Dimorphism from Proteomics

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相关实验视频

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科学领域:

  • 分子生物学分子生物学
  • 基因组学就是基因组学.
  • 发展生物学 发展生物学

背景情况:

  • 基因差异表达和替代拼接产生特定组织的转录.
  • 这些机制在肌肉成熟中的作用尚不清楚.
  • 肌肉成熟至关重要,因为它在许多肌肉疾病中受到损害.

研究的目的:

  • 在小鼠的骨肌肉成熟过程中分析转录组重塑.
  • 了解不同基因表达和替代拼接在肌肉发育中的作用.
  • 识别与肌肉疾病相关的基因中的新型转录.

主要方法:

  • 用RNA测序来分析骨肌肉的转录组.
  • 从胚胎 18.5 天到 7 周大的小鼠收集了样本.
  • 鉴定和比较了差异表达和替代拼接的基因.

主要成果:

  • 发生了显著的转录组变化,特别是在出生后的前两周.
  • 8571个基因被差异地表达,3096个基因表现出替代拼接.
  • 不同表达和替代拼接调节了骨肌肉至关重要的不同生物过程.
  • 在Lrp4中,一种与先天性肌痛症相关的基因的新型外基因在小鼠和人类中得到了验证.

结论:

  • 转录组的表征揭示了调节骨肌肉成熟和功能的关键途径.
  • 对替代拼接和转录的详细分析可以改善肌肉疾病的遗传诊断.
  • 这项研究为了解肌肉发育和相关疾病提供了全面的资源.