Immune cell identifier and classifier (ImmunIC) for single cell transcriptomic readouts.

Immune cell identifier and classifier (ImmunIC) for single cell transcriptomic readouts.
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DOI:
10.1038/s41598-023-39282-4
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发表时间:
2023-07-26
期刊:
影响因子:
4.6
通讯作者:
Lee, Ha Youn
Lee, Ha Youn
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Park, Sung Yong;Ter-Saakyan, Sonia;Faraci, Gina;Lee, Ha Youn

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Single cell RNA sequencing has a central role in immune profiling, identifying specific immune cells as disease markers and suggesting therapeutic target genes of immune cells. Immune cell-type annotation from single cell transcriptomics is in high demand for dissecting complex immune signatures from multicellular blood and organ samples. However, accurate cell type assignment from single-cell RNA sequencing data alone is complicated by a high level of gene expression heterogeneity. Many computational methods have been developed to respond to this challenge, but immune cell annotation accuracy is not highly desirable. We present ImmunIC, a simple and robust tool for immune cell identification and classification by combining marker genes with a machine learning method. With over two million immune cells and half-million non-immune cells from 66 single cell RNA sequencing studies, ImmunIC shows 98% accuracy in the identification of immune cells. ImmunIC outperforms existing immune cell classifiers, categorizing into ten immune cell types with 92% accuracy. We determine peripheral blood mononuclear cell compositions of severe COVID-19 cases and healthy controls using previously published single cell transcriptomic data, permitting the identification of immune cell-type specific differential pathways. Our publicly available tool can maximize the utility of single cell RNA profiling by functioning as a stand-alone bioinformatic cell sorter, advancing cell-type specific immune profiling for the discovery of disease-specific immune signatures and therapeutic targets.
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