基于网络的建模揭示了在人类骨肌肉重塑过程中非编码RNA调节的细胞类型丰富模式
Jonathan C Mcleod1, Changhyun Lim1,2, Tanner Stokes1
1Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada.
bioRxiv : the preprint server for biology
|October 17, 2024
概括
研究人员确定了110种非蛋白质编码RNA (ncRNA),这些RNA与抵抗训练后的人类骨肌肉生长有关. 这些ncRNA通过各种途径和细胞类型相互作用,揭示了对肌肉发育和疾病的新见解.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 人体生理学 人体生理学
背景情况:
- 非蛋白编码RNAs (ncRNAs) 在人类发育和疾病中起着至关重要的作用.
- 由于短读测序的局限性,研究人类骨肌肉中的ncRNA具有挑战性.
- 了解ncRNA在肌肉缩中的作用对于再生医学和体育科学至关重要.
研究的目的:
- 在人类骨肌肉生长过程中调查细胞类型特定的ncRNA反应.
- 用先进的测序和网络建模来识别与肌肉缩相关的新型ncRNA.
- 阐明参与ncRNA介导肌肉生长的功能途径和细胞类型.
主要方法:
- 对144名参与者进行了5项人体抵抗训练研究,确定了对肌肉质量积累的响应者和不响应者.
- 使用定制的RNA测序管道生成了288个转录基因组范围的配置文件.
- 采用网络建模来分析ncRNA和单细胞水平的肌肉生长途径之间的相互作用.
主要成果:
- 确定了110个与肌肉生长有显著联系的ncRNAs,包括已知的调节者如CYTOR和新型候选者.
- 发现了新的高度相关的ncRNAs:PPP1CB-DT (肌纤维细胞组合),EEF1A1P24和TMSB4XP8 (血管改造/血管生成).
- 证明像MYREM这样的与过度缩相关的ncRNA表现出特定的核细胞表达模式,并通过多种细胞类型和途径介导作用.
结论:
- 单细胞相关的ncRNA可以从大量肌肉转录数据中识别出来.
- 超相关的ncRNA基因通过多种细胞类型和相互作用的途径与肌肉生长有关.
- 这项研究为了解ncRNA在人类骨肌肉适应和疾病中的作用提供了全面的资源.
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