Journal
NATURE BIOTECHNOLOGY
Volume 39, Issue 9, Pages 1095-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41587-021-00896-6
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Funding
- French National Research Agency (ANR) `Investissements d'Avenir' Program [ANR-10-IAHU-01]
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Cell-ID is a clustering-free multivariate statistical method for extracting per-cell gene signatures from single-cell sequencing data. It is reproducible across different donors, tissues, species, and omics technologies, improving biological interpretation at individual cell level and enabling discovery of rare cell types. Cell-ID facilitates the analysis of cell-type heterogeneity and cell identity across multiple samples at the single-cell level.
Because of the stochasticity associated with high-throughput single-cell sequencing, current methods for exploring cell-type diversity rely on clustering-based computational approaches in which heterogeneity is characterized at cell subpopulation rather than at full single-cell resolution. Here we present Cell-ID, a clustering-free multivariate statistical method for the robust extraction of per-cell gene signatures from single-cell sequencing data. We applied Cell-ID to data from multiple human and mouse samples, including blood cells, pancreatic islets and airway, intestinal and olfactory epithelium, as well as to comprehensive mouse cell atlas datasets. We demonstrate that Cell-ID signatures are reproducible across different donors, tissues of origin, species and single-cell omics technologies, and can be used for automatic cell-type annotation and cell matching across datasets. Cell-ID improves biological interpretation at individual cell level, enabling discovery of previously uncharacterized rare cell types or cell states. Cell-ID is distributed as an open-source R software package. Cell-ID facilitates the analysis of cell-type heterogeneity and cell identity across multiple samples at the single-cell level.
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