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ACTINN: automated identification of cell types in single cell RNA sequencing

Journal Article · · Bioinformatics
Abstract Motivation

Cell type identification is one of the major goals in single cell RNA sequencing (scRNA-seq). Current methods for assigning cell types typically involve the use of unsupervised clustering, the identification of signature genes in each cluster, followed by a manual lookup of these genes in the literature and databases to assign cell types. However, there are several limitations associated with these approaches, such as unwanted sources of variation that influence clustering and a lack of canonical markers for certain cell types. Here, we present ACTINN (Automated Cell Type Identification using Neural Networks), which employs a neural network with three hidden layers, trains on datasets with predefined cell types and predicts cell types for other datasets based on the trained parameters.

Results

We trained the neural network on a mouse cell type atlas (Tabula Muris Atlas) and a human immune cell dataset, and used it to predict cell types for mouse leukocytes, human PBMCs and human T cell sub types. The results showed that our neural network is fast and accurate, and should therefore be a useful tool to complement existing scRNA-seq pipelines.

Availability and implementation

The codes and datasets are available at https://figshare.com/articles/ACTINN/8967116. Tutorial is available at https://github.com/mafeiyang/ACTINN. All codes are implemented in python.

Supplementary information

Supplementary data are available at Bioinformatics online.

Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
FC02-02ER63421
OSTI ID:
1922564
Alternate ID(s):
OSTI ID: 1799618
Journal Information:
Bioinformatics, Journal Name: Bioinformatics Journal Issue: 2 Vol. 36; ISSN 1367-4803
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (11)

Generalizable and Scalable Visualization of Single-Cell Data Using Neural Networks journal August 2018
Batch effects in single-cell RNA-sequencing data are corrected by matching mutual nearest neighbors journal April 2018
Integrating single-cell transcriptomic data across different conditions, technologies, and species journal April 2018
Massively parallel digital transcriptional profiling of single cells journal January 2017
Single-cell RNA sequencing technologies and bioinformatics pipelines journal August 2018
Deep generative modeling for single-cell transcriptomics journal November 2018
Removal of batch effects using distribution-matching residual networks journal April 2017
Using neural networks for reducing the dimensions of single-cell RNA-Seq data journal July 2017
SuperCT: a supervised-learning framework for enhanced characterization of single-cell transcriptomic profiles journal February 2019
Atlas of the Immune Cell Repertoire in Mouse Atherosclerosis Defined by Single-Cell RNA-Sequencing and Mass Cytometry journal June 2018
CaSTLe – Classification of single cells by transfer learning: Harnessing the power of publicly available single cell RNA sequencing experiments to annotate new experiments journal October 2018

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