MINN:一种代谢信息的神经网络,用于将奥米克数据集成到基因组规模的代谢建模中
Gabriele Tazza1, Francesco Moro2, Dario Ruggeri1
1Department of Software Engineering, University of Szeged, Szeged, Hungary.
Computational and structural biotechnology journal
|August 20, 2025
概括
这项研究引入了代谢信息神经网络 (MINN),以使用多组数据预测细胞代谢. 混合模型将机械学知识与数据驱动的方法相结合,以提高准确性和可解释性.
科学领域:
- 系统生物学
- 计算生物学
- 代谢工程
背景情况:
- 了解细胞行为需要整合新陈代谢及其调节.
- 多omics数据提供了详细的分子快照,但ML模型需要大数据集并且缺乏可解释性.
- 基因组规模代谢模型 (GEM) 提供结构化分析,但不能无地整合omics数据.
研究的目的:
- 开发一个混合框架,结合机械和数据驱动的细胞代谢分析方法.
- 为预测大肠杆菌的代谢流提供代谢信息的神经网络 (MINN).
- 根据现有方法评估MINN的表现,并解决数据驱动和机械目标之间的潜在冲突.
主要方法:
- 开发了一个代谢信息神经网络 (MINN),将GEM嵌入神经网络框架中.
- 在不同的生长速度和基因淘汰下利用大肠杆菌的多种数据.
- 将MINN预测与纯机器学习 (ML) 和节流平衡分析 (pFBA) 进行比较.
主要成果:
- 与纯ML和pFBA相比,MINN对代谢流的预测性能有所改善.
- 在混合模型中确定并提出数据驱动和机械目标之间的冲突解决方案.
- 成功将MINN与pFBA结合起来以提高代谢预测的可解释性.
结论:
- 像MINN这样的混合模型提供了一个强大的平台,
- MINN有效地预测代谢流动,并改进了现有的计算方法.
- 缓解冲突和增强可解释性的策略对于混合模型的实际应用至关重要.
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