期刊
BMC BIOINFORMATICS
卷 20, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s12859-019-2977-0
关键词
Dropout; Imputation; Bootstrap; Single-cell; RNA-seq
类别
资金
- NIH [T32CA009337, R01HL119099, HubMAP UG3HL145609]
- Claudia Adams Barr Award
- CZI/SVCF HCA [183127]
BackgroundSingle-cell RNA-sequencing technologies provide a powerful tool for systematic dissection of cellular heterogeneity. However, the prevalence of dropout events imposes complications during data analysis and, despite numerous efforts from the community, this challenge has yet to be solved.ResultsHere we present a computational method, called RESCUE, to mitigate the dropout problem by imputing gene expression levels using information from other cells with similar patterns. Unlike existing methods, we use an ensemble-based approach to minimize the feature selection bias on imputation. By comparative analysis of simulated and real single-cell RNA-seq datasets, we show that RESCUE outperforms existing methods in terms of imputation accuracy which leads to more precise cell-type identification.ConclusionsTaken together, these results suggest that RESCUE is a useful tool for mitigating dropouts in single-cell RNA-seq data. RESCUE is implemented in R and available at https://github.com/seasamgo/rescue.
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