无监督机器学习用于蛋白质组学中的差分分析
Guanyang Xu1, Enhui Wu1,2, Yuxiang Lin3
1Department of Chemistry, Zhongshan Hospital, Fudan University, Shanghai 200000, China.
Analytical chemistry
|October 6, 2025
概括
机器学习方法,特别是最小协差决定器 (MCD),在蛋白质组学中提供了优越的差异蛋白质检测,与传统统计相比. 这些强大的算法增强了生物标志物发现和精准医学研究.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 生物标志物发现发现
- 机器学习 机器学习
背景情况:
- 差异蛋白质组学分析的传统统计方法存在局限性,包括分布假设和依赖折叠变化值.
- 这些局限性可能会影响生物标志物发现和疾病机制阐明的准确性和可靠性.
研究的目的:
- 系统地评估无监督异常检测机器学习 (ML) 算法与差异蛋白检测的既定统计方法相比.
- 以回忆,精度,准确性和稳定性来评估ML算法的性能.
主要方法:
- 使用*in silico*模拟的蛋白质组数据集评估了18个无监督异常检测ML算法.
- 基于概率的转换,以实现跨算法可比性.
- 使用现实世界的蛋白质组数据进行验证.
主要成果:
- 无监督的ML方法,特别是最小协差决定因素 (MCD),在回忆,精度和准确性方面表现优于统计测试.
- 在蛋白质组数据集中,MCD显示了对样本间异质性的强化稳定性.
- 在现实数据中,MCD识别的蛋白质覆盖了正规途径,并揭示了新的瘤相关生物分子.
结论:
- 无监督ML方法,特别是MCD,为差异蛋白质组学分析提供了传统统计方法的强大而可靠的替代方案.
- 这些ML方法提高了生物标志物发现和疾病机制研究的可靠性.
- 这些发现支持无监督ML在精准医学研究中的应用.
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