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Denoising spatial epigenomic data via deep matrix factorization

delete2026-01-13
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PRE
AI
S
S S Wang
H
Hao Xu
J
Junyu Wang
Y
Yao Xiao
S
Shanghao Dai
J
Junyi Lu
R
Ruoxuan Cao
X
Xuejin Chen
瞿
瞿昆 (Kun Qu) *
DOI:10.1038/s43588-025-00941-3delete
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摘要

摘要

En 中文
空间表观基因组学(SE)技术对完整组织内的表观基因组景观进行表征,保留空间信息并实现基因调控机制的原位研究。然而,当前的SE数据集通常存在信号检测低、噪声显著以及峰值矩阵极度稀疏等问题,这给下游分析带来了重大挑战。本研究介绍了一种名为SPEED(空间表观基因组数据去噪)的深度矩阵分解框架,该框架利用图谱水平的单细胞表观基因组数据和空间信息对SE数据进行插补和去噪。在模拟数据和真实SE组织数据集的全面评估中,SPEED在多种组织和技术的对比中优于五种当前最先进的方法。此外,SPEED的去噪输出促进了下游分析,例如染色质可及性差异分析、表观基因组空间域识别和基因活性推断。综合来看,我们的结果表明SPEED是一种通用的工具,可提升SE数据的质量和生物学洞察力。SE数据存在高度稀疏性问题。作者提出SPEED,一种深度矩阵分解框架,利用图谱水平的单细胞表观基因组数据进行SE数据去噪,展示了其在SE分析中具有前景的工具潜力。
Keyword:
Spatial epigenomics
Deep matrix factorization
Data denoising
Chromatin accessibility
Single-cell epigenomics

期刊

Nature Computational Science 封面图
Nature Computational Science
IF:
18.3
论文数:
3.1K
被引数:
4.0K

机构

H
Hefei Comprehensive National Science Center
学者数:
200
论文数: 109
被引数: 0
U
University of Science and Technology of China
学者数:
1.7W
论文数: 6.0K
被引数: 11.3W
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