Journal
PATTERN RECOGNITION
Volume 105, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.patcog.2020.107385
Keywords
microRNAs; Protein coding genes; Interaction network; Graph convolutional network; Disease hierarchy
Funding
- National Key Research and Development Program of China [2018YFC0910500]
- National Natural Science Foundation of China [61903248, 61725302, 616712886]
- Science and Technology Commission of Shanghai Municipality
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In this study, we present an updated predictor DimiG 2.0, which uses a semi-supervised multi-label graph convolutional network (GCN) to infer disease-associated microRNAs (miRNAs) on an interaction network between protein coding genes (PCGs) and miRNAs using disease-PCG associations. DimiG 2.0 benefits from integrating the hierarchy of diseases into the GCN. DimiG 2.0 has the following updates: 1) It incorporates the hierarchy of diseases to regularize the GCN, encouraging diseases in the hierarchy to share similar miRNAs. 2) It integrates the PCGs with interacting partners but without associated diseases into model training, these unlabeled PCGs increase the size of the constructed interaction network. 3) It is able to predict associated miRNAs for 1017 diseases (updated from 248). 4) It updates expression data across tissues from the latest GTEx v7, and the expression values are quantified in Transcripts Per Million (TPM). Our results show that DimiG 2.0 outperforms state-of-the-art semi-supervised and supervised methods on the constructed benchmarked sets. (C) 2020 Elsevier Ltd. All rights reserved.
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