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Cell Diversity01:13

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The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
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A Protocol to Acquire the Degenerative Tenocyte from Humans
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在破裂的人类四头肌肌中探索单细胞分辨率的细胞变化.

Jolet Y Mimpen1,2, Mathew J Baldwin1, Claudia Paul1

  • 1The Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.

The Journal of physiology
|April 15, 2025
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概括

破裂四头肌肌的早期细胞变化揭示了纤维细胞和血管内皮细胞是急性损伤反应的关键参与者. 了解这些细胞对于开发新的肌愈合疗法至关重要.

关键词:
细胞反应的细胞反应.它们是内皮细胞的内皮细胞.纤维细胞的细胞.单个核RNA测序的单核RNA测序肌受伤 肌受伤 肌受伤肌的修复 肌的修复转录组学 转录组学是指转录组学.

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科学领域:

  • 生物医学工程 生物医学工程
  • 细胞生物学 细胞生物学
  • 整形外科 整形外科 整形外科

背景情况:

  • 人体肌破裂通常在慢性阶段进行研究,对急性损伤的早期反应的研究有限.
  • 四肢断裂需要立即进行手术,这使得它们成为研究早期损伤机制的有价值模型.

研究的目的:

  • 探索和描述与健康肌相比,破裂的人类四头肌的早期细胞和分子变化.
  • 为了确定关键的细胞类型和途径,涉及到急性肌破裂的初始阶段.

主要方法:

  • 单核RNA测序是在健康个体的四头肌样本和破裂后7-8天的样本上进行的.
  • 进行了全面的转录基因分析,以描述基因表达,并确定细胞类型和细胞状态.

主要成果:

  • 对12,808个细胞核的转录组分析揭示了12种主要细胞类型,其中纤维细胞,血管内皮细胞 (VEC),壁画细胞和巨细胞的显著基因表达变化.
  • 破裂的肌显示出细胞外矩阵组织和细胞循环基因的表达增加,脂质代谢基因减少.
  • 纤维细胞采用了激活的表型,VEC在比例上增加并显示分裂的迹象,巨细胞从静态状态转移到激活状态.

结论:

  • 纤维细胞和内皮细胞被确定为急性四头肌肌破裂中早期细胞反应的主要编排者.
  • 观察到的细胞转移和改变的基因表达途径为肌愈合的早期阶段提供了洞察力.
  • 向纤维细胞和内皮细胞可能为增强肌修复和恢复提供有前途的治疗策略.