Inferring Gene Regulatory Networks from Single-Cell Time-Course Data Based on Temporal Convolutional Networks


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Abstract

Background:Time-course single-cell RNA sequencing (scRNA-seq) data represent dynamic gene expression values that change over time, which can be used to infer causal relationships between genes and construct dynamic gene regulatory networks (GRNs). However, most of the existing methods are designed for bulk RNA sequencing (bulk RNA-seq) data and static scRNA-seq data, and only a few methods, such as CNNC and DeepDRIM can be directly applied to time-course scRNA-seq data.

Objective:This work aims to infer causal relationships between genes and construct dynamic gene regulatory networks using time-course scRNA-seq data.

Methods:We propose an analytical method for inferring GRNs from single-cell time-course data based on temporal convolutional networks (scTGRN), which provides a supervised learning approach to infer causal relationships among genes. scTGRN constructs a 4D tensor representing gene expression features for each gene pair, then inputs the constructed 4D tensor into the temporal convolutional network to train and infer the causal relationship between genes.

Results:We validate the performance of scTGRN on five real datasets and four simulated datasets, and the experimental results show that scTGRN outperforms existing models in constructing GRNs. In addition, we test the performance of scTGRN on gene function assignment, and scTGRN outperforms other models.

Conclusion:The analysis shows that scTGRN can not only accurately identify the causal relationship between genes, but also can be used to achieve gene function assignment.

About the authors

Dayu Tan

Institutes of Physical Science and Information Technology, Anhui University

Email: info@benthamscience.net

Jing Wang

School of Computer Science and Technology, Anhui University

Email: info@benthamscience.net

Zhaolong Cheng

School of Computer Science and Technology, Anhui University

Email: info@benthamscience.net

Yansen Su

Key Lab of Intelligent Computing and Signal Processing of Ministry of Education, School of Artificial Intelligence, Anhui University

Email: info@benthamscience.net

Chunhou Zheng

Key Lab of Intelligent Computing and Signal Processing of Ministry of Education, School of Artificial Intelligence, Anhui University

Author for correspondence.
Email: info@benthamscience.net

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