LncSubpathway: a novel approach for identifying dysfunctional subpathways associated with risk lncRNAs by integrating lncRNA and mRNA expression profiles and pathway topologies.
Long non-coding RNAs (lncRNAs) play important roles in various biological processes, including the development of many diseases. Pathway analysis is a valuable aid for understanding the cellular functions of these transcripts. We have developed and characterized LncSubpathway, a novel method that integrates lncRNA and protein coding gene (PCG) expression with interactome data to identify disease risk subpathways that functionally associated with risk lncRNAs. LncSubpathway identifies the most relevance regions which are related with risk lncRNA set and implicated with study conditions through simultaneously considering the dysregulation extent of lncRNAs, PCGs and their correlations. Simulation studies demonstrated that the sensitivity and false positive rates of LncSubpathway were within acceptable ranges, and that LncSubpathway could accurately identify dysregulated regions that related with disease risk lncRNAs within pathways. When LncSubpathway was applied to colorectal carcinoma and breast cancer subtype datasets, it identified cancer type- and breast cancer subtype-related meaningful subpathways. Further, analysis of its robustness and reproducibility indicated that LncSubpathway was a reliable means of identifying subpathways that functionally associated with lncRNAs. LncSubpathway is freely available at http://www.bio-bigdata.com/lncSubpathway/.
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Yanjun
Y
Xu
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Feng
F
Li
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Tan
T
Wu
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Yingqi
Y
Xu
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Haixiu
H
Yang
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Qun
Q
Dong
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Meiyu
M
Zheng
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Desi
D
Shang
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Chunlong
C
Zhang
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Yunpeng
Y
Zhang
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
Xia
X
Li
D000465:Algorithms; D001943:Breast Neoplasms / Q000235:genetics; D015179:Colorectal Neoplasms / Q000235:genetics; D019295:Computational Biology / Q000379:methods*; D003198:Computer Simulation; D020869:Gene Expression Profiling / Q000379:methods*; D015972:Gene Expression Regulation, Neoplastic; D053263:Gene Regulatory Networks; D006801:Humans; D020407:Internet; D062085:RNA, Long Noncoding / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics*; D015203:Reproducibility of Results; D012307:Risk Factors; D015398:Signal Transduction / Q000235:genetics*
D062085:RNA, Long Noncoding; D012333:RNA, Messenger
lncRNA; network; pathway topologies; subpathway