Microbial Gene Ontology informed deep neural network for microbe functionality discovery in human diseases

Author:

Liu YunjieORCID,Zhang Yao-zhongORCID,Imoto Seiya

Abstract

The human microbiome plays a crucial role in human health and is associated with a number of human diseases. Determining microbiome functional roles in human diseases remains a biological challenge due to the high dimensionality of metagenome gene features. However, existing models were limited in providing biological interpretability, where the functional role of microbes in human diseases is unexplored. Here we propose to utilize a neural network-based model incorporating Gene Ontology (GO) relationship network to discover the microbe functionality in human diseases. We use four benchmark datasets, including diabetes, liver cirrhosis, inflammatory bowel disease, and colorectal cancer, to explore the microbe functionality in the human diseases. Our model discovered and visualized the novel candidates’ important microbiome genes and their functions by calculating the important score of each gene and GO term in the network. Furthermore, we demonstrate that our model achieves a competitive performance in predicting the disease by comparison with other non-Gene Ontology informed models. The discovered candidates’ important microbiome genes and their functions provide novel insights into microbe functional contribution.

Publisher

Public Library of Science (PLoS)

Subject

Multidisciplinary

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