与线粒体功能障碍相关的六个基因签名作为萨科佩尼亚潜在的诊断生物标志物
Xiaohuan Yang1, Ming Tian2, Zhenyi Jia3
1Shanghai Yangpu District Shidong Hospital, Shanghai, China.
Biotechnology and applied biochemistry
|November 30, 2025
概括
这项研究确定了六个关键的线粒体相关基因,以创建麻症的诊断模型. 该模型在诊断与年龄相关的肌肉退化方面显示出高准确性,突出显示了线粒体免疫失调.
科学领域:
- 线粒体生物学 线粒体生物学
- 遗传学 是一个遗传学.
- 老年学是指老年学的学科.
背景情况:
- 与年龄相关的线粒体功能障碍是肌肉退化和肉症的关键驱动因素.
- 准确诊断萨科佩尼亚对于及时干预和管理至关重要.
- 现有的诊断方法可能无法完全捕捉潜在的分子机制.
研究的目的:
- 为了确定与sarcopenia相关的线粒体相关的差异表达基因 (MR-DEGs).
- 基于已识别的MR-DEGs,开发和验证一种针对肉类的诊断模型.
- 探索MR-DEGs在肉症中的病理生理相关性,包括免疫相关性.
主要方法:
- 分析了转录基因数据集 (GSE226151 和 GSE1428).
- 与线粒体相关的基因 (MRG) 来自MitoCarta 3.0.0.
- 通过交叉与肉类相关的基因,DEG和MRG来识别MR-DEG.
- 统变物流回归和LASSO回归用于生物标志物选择.
- 使用接收器操作特征 (ROC) 曲线构建和验证了一个诊断模型.
- 进行了基因相互作用网络和免疫相关性分析.
主要成果:
- 确定了六种最佳的MR-DEGs (ACOT11,BCO2,MRPL4,NDUFB9,UQCR10和CASP8).这些MR-DEGs被认为是最有效的.
- 诊断模型在训练和验证数据集中实现了高的曲线下面积 (AUC) 值 (0.935和0.899).
- 在MR-DEG和免疫细胞 (CD56NK细胞,中性粒细胞) 之间发现了显著的相关性.
- 网络分析显示了线粒体功能的丰富,如ATP合成和氧化酸化.
结论:
- 一个六个MR-DEG的诊断模型显示了强大的临床潜力,用于诊断肉症.
- 该模型的性能在独立数据集中得到验证,证实了其可靠性.
- 这些发现突显了线粒体免疫失调在萨科佩尼亚病变发生过程中的重要作用.
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