长期肌肉缩后的上下调节的基因因由肌肉缩诱导在小鼠中使用RNA-Seq检测
Shoko Sawano1,2, Misaki Fukushima1, Taiki Akasaka1
1Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan.
Life (Basel, Switzerland)
|May 27, 2023
概括
长期肌肉缩导致稳定的基因表达变化. 长非编码RNAE230016M11Rik在肌肉消耗的小鼠肌肉中被上调,这表明它在维持缩的骨肌肉中的作用.
科学领域:
- 肌肉生理学和分子生物学
- 基因组学和转录基因组学
- 生物医学研究的研究.
背景情况:
- 骨肌肉缩,通常是由不活动引起的,导致肌肉质量迅速减少.
- 虽然早期缩基因表达得到了记录,但长期的,稳定的变化仍然不太了解.
- 研究慢性肌肉缩中的基因表达对于理解肌肉维护和潜在的治疗点至关重要.
研究的目的:
- 为了全面分析长期无神化的小鼠骨肌肉中的基因表达模式.
- 为了识别肌肉缩达到高原后上下调节的特定基因.
- 探索已识别的基因,特别是长非编码RNA在维持肌肉缩状态方面的潜在作用.
主要方法:
- 手术剥离了小鼠的坐骨神经,随后进行了为期五周的住房期.
- 使用X射线计算机断层扫描 (CT) 测量后肢肌肉截面区域,以确认稳定的缩.
- RNA测序 (RNA-Seq) 用于分析索莱斯和延伸指长肌 (EDL) 肌肉中的基因表达,通过RT-qPCR进行验证.
主要成果:
- 肌肉截面面积稳定在完整肌肉的约65%的肌肉28天后denervation.
- 通过RNA-Seq检测,在肌肉中发现了特定的上调基因 (例如Adora1,E230016M11Rik) 和下调基因 (例如Gm20515).
- 在EDL肌肉中,上调的基因包括Adora1和E230016M11Rik,而Fzd7是下调的.
- 长非编码RNAE230016M11Rik在肌肉和EDL肌肉中显著上调.
结论:
- 长期的脱皮导致骨肌肉缩的平原状态,具有不同的基因表达特征.
- 长非编码RNA E230016M11Rik 是一个关键的候选基因,可能参与在慢性缩期间维持骨肌肉大小.
- 对E230016M11Rik的进一步研究可能会为肌肉消耗条件的治疗策略提供见解.
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