Title
Identifying module biomarker in type 2 diabetes mellitus by discriminative area of functional activity.
Abstract
Identifying diagnosis and prognosis biomarkers from expression profiling data is of great significance for achieving personalized medicine and designing therapeutic strategy in complex diseases. However, the reproducibility of identified biomarkers across tissues and experiments is still a challenge for this issue.We propose a strategy based on discriminative area of module activities to identify gene biomarkers which interconnect as a subnetwork or module by integrating gene expression data and protein-protein interactions. Then, we implement the procedure in T2DM as a case study and identify a module biomarker with 32 genes from mRNA expression data in skeletal muscle for T2DM. This module biomarker is enriched with known causal genes and related functions of T2DM. Further analysis shows that the module biomarker is of superior performance in classification, and has consistently high accuracies across tissues and experiments.The proposed approach can efficiently identify robust and functionally meaningful module biomarkers in T2DM, and could be employed in biomarker discovery of other complex diseases characterized by expression profiles.
Year
DOI
Venue
2015
10.1186/s12859-015-0519-y
BMC Bioinformatics
Keywords
Field
DocType
microarrays,algorithms,bioinformatics
Biology,Biomarker (medicine),Type 2 Diabetes Mellitus,Bioinformatics,Gene regulatory network,Discriminative model,Gene expression profiling,DNA microarray,Personalized medicine
Journal
Volume
Issue
ISSN
16
1
1471-2105
Citations 
PageRank 
References 
3
0.42
23
Authors
4
Name
Order
Citations
PageRank
Xindong Zhang130.75
Lin Gao213729.86
Zhi-Ping Liu31008.99
Luonan Chen41485145.71