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Transcriptomic and Proteomic Data Integration and Two-Dimensional Molecular Maps with Regulatory and Functional Linkages: Application to Cell Proliferation and Invasion Networks in Glioblastoma
- Source :
- Journal of proteome research. 14(12)
- Publication Year :
- 2015
-
Abstract
- Glioblastoma multiforme (GBM), the most aggressive primary brain tumor, is characterized by high rates of cell proliferation, migration, and invasion. New therapeutic strategies and targets are being continuously explored with the hope for better outcome. By overlaying transcriptomic and proteomic data from GBM clinical tissues, we identified 317 differentially expressed proteins to be concordant with the messenger RNAs (mRNAs). We used these entities to generate integrated regulatory information at the level of microRNAs (miRNAs) and their mRNA and protein targets using prediction programs or experimentally verified miRNA target mode in the miRWalk database. We observed 60% or even more of the miRNA-target pairs to be consistent with experimentally observed inverse expression of these molecules in GBM. The integrated view of these regulatory cascades in the contexts of cell proliferation and invasion networks revealed two-dimensional molecular interactions with regulatory and functional linkages (miRNAs and their mRNA-protein targets in one dimension; multiple miRNAs associated in a functional network in the second dimension). A total of 28 of the 35 differentially expressed concordant mRNA-protein entities represented in the proliferation network, and 51 of the 59 such entities represented in the invasion network, mapped to altered miRNAs from GBM and conformed to an inverse relationship in their expression. We believe the two-dimensional maps of gene expression changes enhance the strength of the discovery datasets derived from omics-based studies for their applications in GBM as well as tumors in general.
- Subjects :
- Proteomics
Brain tumor
Computational biology
Biology
Bioinformatics
Biochemistry
Transcriptome
Central Nervous System Neoplasms
microRNA
Gene expression
medicine
Humans
Gene Regulatory Networks
RNA, Messenger
Cell Proliferation
Messenger RNA
Cell growth
Gene Expression Profiling
Computational Biology
Proteins
General Chemistry
medicine.disease
Gene Expression Regulation, Neoplastic
MicroRNAs
Glioblastoma
Metabolic Networks and Pathways
Subjects
Details
- ISSN :
- 15353907
- Volume :
- 14
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of proteome research
- Accession number :
- edsair.doi.dedup.....8338fba6257288f9f0a4f65f70121a50