Title
Mirpls: A Partial Linear Structure Identifier Method For Cancer Subtyping Using Micrornas
Abstract
Motivation: MicroRNAs (miRNAs) are small non-coding RNAs that have been successfully identified to be differentially expressed in various cancers. However, some miRNAs were reported to be up-regulated in one subtype of a cancer but down-regulated in another, making overall associations between these miRNAs and the heterogeneous cancer non-linear. These non-linearly associated miRNAs, if identified, are thus informative for cancer subtyping.Results: Here, we propose mirPLS, a Partial Linear Structure identifier for miRNA data that simultaneously identifies miRNAs of linear or non-linear associations with cancer status when non-linearly associated miRNAs can then be used for subsequent cancer subtyping. Simulation studies showed that mirPLS can identify both non-linearly and linearly outcome-associated miRNAs more accurately than the comparison methods. Using the identified non-linearly associated miRNAs much improves the cancer subtyping accuracy. Applications to miRNA data of three different cancer types suggest that the cancer subtypes defined by the non-linearly associated miRNAs identified by mirPLS are consistently more predictive of patient survival and more biological meaningful.
Year
DOI
Venue
2020
10.1093/bioinformatics/btaa606
BIOINFORMATICS
DocType
Volume
Issue
Journal
36
19
ISSN
Citations 
PageRank 
1367-4803
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Peifeng Ruan101.01
Shuang Wang2326.49
Hua Liang3147.25