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Single-cell multi-omics analysis identifies context-specific gene regulatory gates and mechanisms

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Item Type:Article
Title:Single-cell multi-omics analysis identifies context-specific gene regulatory gates and mechanisms
Creators Name:Malekpour, S.A., Haghverdi, L. and Sadeghi, M.
Abstract:There is a growing interest in inferring context specific gene regulatory networks from single-cell RNA sequencing (scRNA-seq) data. This involves identifying the regulatory relationships between transcription factors (TFs) and genes in individual cells, and then characterizing these relationships at the level of specific cell types or cell states. In this study, we introduce scGATE (single-cell gene regulatory gate) as a novel computational tool for inferring TF–gene interaction networks and reconstructing Boolean logic gates involving regulatory TFs using scRNA-seq data. In contrast to current Boolean models, scGATE eliminates the need for individual formulations and likelihood calculations for each Boolean rule (e.g. AND, OR, XOR). By employing a Bayesian framework, scGATE infers the Boolean rule after fitting the model to the data, resulting in significant reductions in time-complexities for logic-based studies. We have applied assay for transposase-accessible chromatin with sequencing (scATAC-seq) data and TF DNA binding motifs to filter out non-relevant TFs in gene regulations. By integrating single-cell clustering with these external cues, scGATE is able to infer context specific networks. The performance of scGATE is evaluated using synthetic and real single-cell multi-omics data from mouse tissues and human blood, demonstrating its superiority over existing tools for reconstructing TF-gene networks. Additionally, scGATE provides a flexible framework for understanding the complex combinatorial and cooperative relationships among TFs regulating target genes by inferring Boolean logic gates among them.
Keywords:ScRNA-seq, ScATAC-seq, Transcription Factor, Motif, Boolean Logic Gate, Bayesian Inference, Animals, Mice
Source:Briefings in Bioinformatics
ISSN:1467-5463
Publisher:Oxford University Press
Volume:25
Number:3
Page Range:bbae180
Date:May 2024
Official Publication:https://doi.org/10.1093/bib/bbae180
PubMed:View item in PubMed

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