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Integrating single- cell data with biological variables

delete2025-04-28
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OA
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Y
Yang Zhou
Q
Qiongyu Sheng
DOI:10.1073/pnas.2416516122delete
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摘要

摘要

En 中文
构建单细胞图谱需要保留可归因于生物变量的差异,例如细胞类型、组织来源和疾病状态,同时消除批次效应。然而,现有方法在显式建模这些生物变量方面存在不足。在此,我们介绍SIGNAL,一个利用生物变量来解耦生物学和技术效应的通用框架,从而将这些元数据与数据整合联系起来。SIGNAL采用一种主成分分析变体来对齐多个批次,能够在约2分钟内实现对100万个细胞的整合。尽管SIGNAL的计算方法简单,但在多种整合场景中均超越了现有最佳方法:1) 异质数据集,2) 跨物种数据集,3) 模拟数据集,4) 低质量细胞注释的整合,以及5) 基于参考的整合。此外,我们证明SIGNAL能够准确地将知识从参考数据集转移到查询数据集。值得注意的是,我们提出了一种自调整策略,以恢复整合过程中可能被扭曲的细胞注释标签。最后,我们将SIGNAL应用于多个大规模图谱,包括一个包含270万个细胞的人类心脏细胞图谱,识别出组织特异性和发育阶段特异性的亚型,以及条件特异性的细胞状态。这凸显了SIGNAL在多尺度分析中的卓越能力。
Keyword:
single-cell data
data integration
knowledge transfer
technical variation
principal component analysis

期刊

P
Proceedings of the National Academy of Sciences of the United States of America
IF:
9.1
论文数:
10.8W
被引数:
73.5W

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