Entropy sorting of single-cell RNA sequencing data reveals the inner cell mass in the human pre-implantation embryo.
Entropy sorting of single-cell RNA sequencing data reveals the inner cell mass in the human pre-implantation embryo.
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单细胞RNA测序数据的熵排序揭示了人类植入前胚胎的内细胞团。
DOI:
10.1016/j.stemcr.2022.09.007
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发表时间:
2023-01-10
影响因子:
5.9
通讯作者:
Dunn, Sara-Jane
中科院分区:
文献类型:
--
作者:
Radley, Arthur;Corujo-Simon, Elena;Nichols, Jennifer;Smith, Austin;Dunn, Sara-Jane
A major challenge in single-cell gene expression analysis is to discern meaningful cellular heterogeneity from technical or biological noise. To address this challenge, we present entropy sorting (ES), a mathematical framework that distinguishes genes indicative of cell identity. ES achieves this in an unsupervised manner by quantifying if observed correlations between features are more likely to have occurred due to random chance versus a dependent relationship, without the need for any user-defined significance threshold. On synthetic data, we demonstrate the removal of noisy signals to reveal a higher resolution of gene expression patterns than commonly used feature selection methods. We then apply ES to human pre-implantation embryo single-cell RNA sequencing (scRNA-seq) data. Previous studies failed to unambiguously identify early inner cell mass (ICM), suggesting that the human embryo may diverge from the mouse paradigm. In contrast, ES resolves the ICM and reveals sequential lineage bifurcations as in the classical model. ES thus provides a powerful approach for maximizing information extraction from high-dimensional datasets such as scRNA-seq data. Entropy sorting (ES), a computational framework for denoising high-dimensional data ES outperforms popular feature selection and imputation methods on synthetic data ES unveils an inner cell mass population in human embryo scRNA-sequencing data In this work, Radley and colleagues present entropy sorting, a mathematical framework developed to mitigate noise in scRNA-seq analysis. On both synthetic data and human embryo scRNA-seq data, entropy sorting enables higher resolution of gene expression dynamics than other available methods. The method reveals a distinct inner cell mass signature in the human blastocyst, preceding pluripotent epiblast and hypoblast.
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