1. scapGNN: A graph neural network–based framework for active pathway and gene module inference from single-cell multi-omics data.
- Author
-
Han, Xudong, Wang, Bing, Situ, Chenghao, Qi, Yaling, Zhu, Hui, Li, Yan, and Guo, Xuejiang
- Subjects
- *
MULTIOMICS , *GENE regulatory networks , *CELL analysis , *DATA visualization , *DATA analysis - Abstract
Although advances in single-cell technologies have enabled the characterization of multiple omics profiles in individual cells, extracting functional and mechanistic insights from such information remains a major challenge. Here, we present scapGNN, a graph neural network (GNN)-based framework that creatively transforms sparse single-cell profile data into the stable gene–cell association network for inferring single-cell pathway activity scores and identifying cell phenotype–associated gene modules from single-cell multi-omics data. Systematic benchmarking demonstrated that scapGNN was more accurate, robust, and scalable than state-of-the-art methods in various downstream single-cell analyses such as cell denoising, batch effect removal, cell clustering, cell trajectory inference, and pathway or gene module identification. scapGNN was developed as a systematic R package that can be flexibly extended and enhanced for existing analysis processes. It provides a new analytical platform for studying single cells at the pathway and network levels. This study presents scapGNN, a single-cell data analysis toolkit that can quantify association networks in sparse single-cell profiles to integrate multi-omics data, calculate pathway activity scores, and identify cell phenotype-associated gene modules at single-cell resolution. Its rich functionality and visualization offer a comprehensive view of single-cell multi-omics data. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF