Chromatin-accessibility estimation from single-cell ATAC-seq data with scOpen.

Chromatin-accessibility estimation from single-cell ATAC-seq data with scOpen.
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DOI:
10.1038/s41467-021-26530-2
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发表时间:
2021-11-04
影响因子:
16.6
通讯作者:
Costa IG
Costa IG
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Li Z;Kuppe C;Ziegler S;Cheng M;Kabgani N;Menzel S;Zenke M;Kramann R;Costa IG

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A major drawback of single-cell ATAC-seq (scATAC-seq) is its sparsity, i.e., open chromatin regions with no reads due to loss of DNA material during the scATAC-seq protocol. Here, we propose scOpen, a computational method based on regularized non-negative matrix factorization for imputing and quantifying the open chromatin status of regulatory regions from sparse scATAC-seq experiments. We show that scOpen improves crucial downstream analysis steps of scATAC-seq data as clustering, visualization, cis-regulatory DNA interactions, and delineation of regulatory features. We demonstrate the power of scOpen to dissect regulatory changes in the development of fibrosis in the kidney. This identifies a role of Runx1 and target genes by promoting fibroblast to myofibroblast differentiation driving kidney fibrosis. scATAC-Seq yields data that is extremely sparse. Here, the authors present a computationally efficient imputation method called scOpen that improves the downstream analyses of scATAC-Seq data and use it to identify transcriptional regulators of kidney fibrosis.
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