A semi-automatic cell type annotation method for single-cell RNA sequencing dataset

Single-cell RNA sequencing (scRNA-seq) has been widely applied to provide insights into the cell-by-cell expression difference in a given bulk sample. Accordingly, numerous analysis methods have been developed. As it involves simultaneous analyses of many cell and genes, efficiency of the methods is...

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Main Authors: Wan Kim, Sung Min Yoon, Sangsoo Kim
Format: Article
Language:English
Published: BioMed Central 2020-09-01
Series:Genomics & Informatics
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Online Access:http://genominfo.org/upload/pdf/gi-2020-18-3-e26.pdf
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author Wan Kim
Sung Min Yoon
Sangsoo Kim
author_facet Wan Kim
Sung Min Yoon
Sangsoo Kim
author_sort Wan Kim
collection DOAJ
description Single-cell RNA sequencing (scRNA-seq) has been widely applied to provide insights into the cell-by-cell expression difference in a given bulk sample. Accordingly, numerous analysis methods have been developed. As it involves simultaneous analyses of many cell and genes, efficiency of the methods is crucial. The conventional cell type annotation method is laborious and subjective. Here we propose a semi-automatic method that calculates a normalized score for each cell type based on user-supplied cell type–specific marker gene list. The method was applied to a publicly available scRNA-seq data of mouse cardiac non-myocyte cell pool. Annotating the 35 t-stochastic neighbor embedding clusters into 12 cell types was straightforward, and its accuracy was evaluated by constructing co-expression network for each cell type. Gene Ontology analysis was congruent with the annotated cell type and the corollary regulatory network analysis showed upstream transcription factors that have well supported literature evidences. The source code is available as an R script upon request.
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issn 2234-0742
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spelling doaj-art-a7c6327053dc486db8b57c69facd25b52025-02-02T18:37:17ZengBioMed CentralGenomics & Informatics2234-07422020-09-01183e2610.5808/GI.2020.18.3.e26616A semi-automatic cell type annotation method for single-cell RNA sequencing datasetWan KimSung Min YoonSangsoo KimSingle-cell RNA sequencing (scRNA-seq) has been widely applied to provide insights into the cell-by-cell expression difference in a given bulk sample. Accordingly, numerous analysis methods have been developed. As it involves simultaneous analyses of many cell and genes, efficiency of the methods is crucial. The conventional cell type annotation method is laborious and subjective. Here we propose a semi-automatic method that calculates a normalized score for each cell type based on user-supplied cell type–specific marker gene list. The method was applied to a publicly available scRNA-seq data of mouse cardiac non-myocyte cell pool. Annotating the 35 t-stochastic neighbor embedding clusters into 12 cell types was straightforward, and its accuracy was evaluated by constructing co-expression network for each cell type. Gene Ontology analysis was congruent with the annotated cell type and the corollary regulatory network analysis showed upstream transcription factors that have well supported literature evidences. The source code is available as an R script upon request.http://genominfo.org/upload/pdf/gi-2020-18-3-e26.pdfcell type annotationco-expression networkregulatory networksingle-cell rna sequencingtranscription factor
spellingShingle Wan Kim
Sung Min Yoon
Sangsoo Kim
A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
Genomics & Informatics
cell type annotation
co-expression network
regulatory network
single-cell rna sequencing
transcription factor
title A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
title_full A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
title_fullStr A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
title_full_unstemmed A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
title_short A semi-automatic cell type annotation method for single-cell RNA sequencing dataset
title_sort semi automatic cell type annotation method for single cell rna sequencing dataset
topic cell type annotation
co-expression network
regulatory network
single-cell rna sequencing
transcription factor
url http://genominfo.org/upload/pdf/gi-2020-18-3-e26.pdf
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