DNFE:用于在生物过程中检测临界点的定向网络流
Xueqing Peng1,2, Rui Qiao1,2, Peiluan Li1,2
1School of Mathematics and Statistics, Henan University of Science and Technology, Luoyang, China.
PLoS computational biology
|July 29, 2025
概括
我们开发了一种新的定向网络流 (DNFE) 方法,以使用omics数据识别生物系统中的关键转折点. 这种强大的方法有效地检测动态网络生物标志物和调节基因关系,即使是在大规模的,杂的数据集中.
科学领域:
- 系统生物学 系统生物学
- 生物信息学是一种生物信息学.
- 基因组学就是基因组学.
背景情况:
- 动态生物过程表现出关键的临界点,标志着状态过渡.
- 使用非定向网络的传统方法在高维,小样本的奥米克数据,特别是单细胞数据方面遇到了困难.
- 识别临界点及其驱动网络对于预测和减轻生物转变至关重要.
研究的目的:
- 开发一种可靠的方法,从omics数据中识别转折点和动态网络生物标志物.
- 解决传统网络分析方法在高维生物数据集中的局限性.
- 探索基因调节关系,并确定生物转变中的关键驱动因素.
主要方法:
- 开发了定向网络流 (DNFE) 方法,将omics数据转化为定向网络.
- 将DNFE应用于各种数据集,包括单细胞RNA测序 (scRNA-seq),批量瘤和血液数据.
- 通过对各种噪声水平和大型基因调控网络的数值模拟来验证该方法.
主要成果:
- 在多个现实数据集中,DNFE有效地识别了关键状态及其动态网络生物标志物.
- 该方法证明了对噪声的稳定性,并且在临界点检测方面表现优于现有的方法.
- DNFE成功地预测了活跃的转录因子,并确定了以前被忽视的"黑暗基因".
结论:
- 该DNFE方法提供了一个强大的和有效的框架,用于分析动态生物过程使用OMIC数据.
- DNFE增强了关键状态,调控网络和关键基因的识别,推进了系统生物学研究.
- 这种方法适用于单细胞和批量omics数据,在生物发现中具有广泛的实用性.
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