Heterogeneous Causal Metapath Graph Neural Network for Gene-Microbe-Disease Association Prediction

Fuente: arXiv
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Auteurs principaux: Zhang, Kexin, Huang, Feng, Liu, Luotao, Xiong, Zhankun, Zhang, Hongyu, Quan, Yuan, Zhang, Wen
Format: Preprint
Publié: 2024
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_version_ 1866929402026131456
author Zhang, Kexin
Huang, Feng
Liu, Luotao
Xiong, Zhankun
Zhang, Hongyu
Quan, Yuan
Zhang, Wen
author_facet Zhang, Kexin
Huang, Feng
Liu, Luotao
Xiong, Zhankun
Zhang, Hongyu
Quan, Yuan
Zhang, Wen
contents The recent focus on microbes in human medicine highlights their potential role in the genetic framework of diseases. To decode the complex interactions among genes, microbes, and diseases, computational predictions of gene-microbe-disease (GMD) associations are crucial. Existing methods primarily address gene-disease and microbe-disease associations, but the more intricate triple-wise GMD associations remain less explored. In this paper, we propose a Heterogeneous Causal Metapath Graph Neural Network (HCMGNN) to predict GMD associations. HCMGNN constructs a heterogeneous graph linking genes, microbes, and diseases through their pairwise associations, and utilizes six predefined causal metapaths to extract directed causal subgraphs, which facilitate the multi-view analysis of causal relations among three entity types. Within each subgraph, we employ a causal semantic sharing message passing network for node representation learning, coupled with an attentive fusion method to integrate these representations for predicting GMD associations. Our extensive experiments show that HCMGNN effectively predicts GMD associations and addresses association sparsity issue by enhancing the graph's semantics and structure.
format Preprint
id arxiv_https___arxiv_org_abs_2406_19156
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Heterogeneous Causal Metapath Graph Neural Network for Gene-Microbe-Disease Association Prediction
Zhang, Kexin
Huang, Feng
Liu, Luotao
Xiong, Zhankun
Zhang, Hongyu
Quan, Yuan
Zhang, Wen
Machine Learning
The recent focus on microbes in human medicine highlights their potential role in the genetic framework of diseases. To decode the complex interactions among genes, microbes, and diseases, computational predictions of gene-microbe-disease (GMD) associations are crucial. Existing methods primarily address gene-disease and microbe-disease associations, but the more intricate triple-wise GMD associations remain less explored. In this paper, we propose a Heterogeneous Causal Metapath Graph Neural Network (HCMGNN) to predict GMD associations. HCMGNN constructs a heterogeneous graph linking genes, microbes, and diseases through their pairwise associations, and utilizes six predefined causal metapaths to extract directed causal subgraphs, which facilitate the multi-view analysis of causal relations among three entity types. Within each subgraph, we employ a causal semantic sharing message passing network for node representation learning, coupled with an attentive fusion method to integrate these representations for predicting GMD associations. Our extensive experiments show that HCMGNN effectively predicts GMD associations and addresses association sparsity issue by enhancing the graph's semantics and structure.
title Heterogeneous Causal Metapath Graph Neural Network for Gene-Microbe-Disease Association Prediction
topic Machine Learning
url https://arxiv.org/abs/2406.19156