Prediction of miRNA targets by learning from interaction sequences

PLoS One. 2020 May 5;15(5):e0232578. doi: 10.1371/journal.pone.0232578. eCollection 2020.

Abstract

MicroRNAs (miRNAs) are involved in a diverse variety of biological processes through regulating the expression of target genes in the post-transcriptional level. So, it is of great importance to discover the targets of miRNAs in biological research. But, due to the short length of miRNAs and limited sequence complementarity to their gene targets in animals, it is challenging to develop algorithms to predict the targets of miRNA accurately. Here we developed a new miRNA target prediction algorithm using a multilayer convolutional neural network. Our model learned automatically the interaction patterns of the experiment-validated miRNA:target-site chimeras from the raw sequence, avoiding hand-craft selection of features by domain experts. The performance on test dataset is inspiring, indicating great generalization ability of our model. Moreover, considering the stability of miRNA:target-site duplexes, our method also showed good performance to predict the target transcripts of miRNAs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Animals
  • Computer Simulation
  • Gene Expression Regulation*
  • Humans
  • MicroRNAs / genetics*
  • Models, Genetic
  • Neural Networks, Computer*
  • Sequence Analysis, RNA

Substances

  • MicroRNAs

Grants and funding

This work was supported by China Postdoctoral Science Foundation Funded Project (2018M642186) and National Natural Science Foundation of China (31670131). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.