Title
Computational Prediction of Human Disease-associated circRNAs based on Manifold Regularization Learning Framework.
Abstract
Accumulating evidences indicate that circular RNAs (circRNAs) play crucial roles in a wide range of biological processes and are extensively involved in tumorigenesis and progression. The number of newly discovered circRNAs has increased dramatically in recent years, but the functions of vast majority of circRNAs are still elusive, and little effort has been attempted to discover disease-associated circRNAs on a large scale until now. With the advance of high-throughput technology, the increasing availability of omics data has provided an unprecedented opportunity for prioritizing candidate circRNAs for diseases by computational models, which will contribute to exploring the pathogenesis of complex diseases at the circRNA level and provide promising applications in disease diagnosis and treatment. Here we propose the assumption that circRNAs with similar functions are normally associated with similar diseases and vice versa, and develop an integrated computational framework called MRLDC to identify disease-associated circRNAs. To our knowledge, MRLDC is the first computational framework for prediction of circRNA-disease associations. By fully exploiting the experimentally validated associations between diseases and circRNAs, we firstly compute the Gaussian interaction profile kernel similarity for circRNAs and diseases, and then a heterogeneous circRNA-disease bilayer network is constructed by combining a circRNA similar network, a disease similar network and the known circRNA-disease associations. Subsequently, we develop a weighted low-rank approximation optimization algorithm with dual-manifold regularizations for predicting disease-associated circRNAs. Experiment results indicate that MRLDC can effectively identify disease circRNA candidates with high accuracy. In addition, case studies further demonstrate the ability of our method in discovering potential circRNA-disease associations.
Year
DOI
Venue
2019
10.1109/JBHI.2019.2891779
IEEE journal of biomedical and health informatics
Keywords
Field
DocType
Diseases,Kernel,Heterogeneous networks,Informatics,Manifolds,RNA,Prediction algorithms
Pattern recognition,Computer science,Manifold regularization,Computational model,Prediction algorithms,Artificial intelligence,Optimization algorithm,Computational biology,Human disease
Journal
Volume
Issue
ISSN
23
6
2168-2208
Citations 
PageRank 
References 
4
0.42
0
Authors
3
Name
Order
Citations
PageRank
Qiu Xiao1483.26
Jiawei Luo26610.72
Jianhua Dai389651.62