TitleBioinformatics Resource Manager v2.3: an integrated software environment for systems biology with microRNA and cross-species analysis tools.
Publication TypeJournal Article
Year of Publication2012
AuthorsTilton, SC, Tal, TL, Scroggins, SM, Franzosa, JA, Peterson, ES, Tanguay, RL, Waters, KM
JournalBMC Bioinformatics
Volume13
Pagination311
Date Published2012 Nov 23
ISSN1471-2105
KeywordsAnimals, Computational Biology, Gene Expression Regulation, Humans, MicroRNAs, Oligonucleotide Array Sequence Analysis, RNA, Messenger, Sequence Analysis, RNA, Software, Systems Biology, Zebrafish
Abstract

BACKGROUND: MicroRNAs (miRNAs) are noncoding RNAs that direct post-transcriptional regulation of protein coding genes. Recent studies have shown miRNAs are important for controlling many biological processes, including nervous system development, and are highly conserved across species. Given their importance, computational tools are necessary for analysis, interpretation and integration of high-throughput (HTP) miRNA data in an increasing number of model species. The Bioinformatics Resource Manager (BRM) v2.3 is a software environment for data management, mining, integration and functional annotation of HTP biological data. In this study, we report recent updates to BRM for miRNA data analysis and cross-species comparisons across datasets.

RESULTS: BRM v2.3 has the capability to query predicted miRNA targets from multiple databases, retrieve potential regulatory miRNAs for known genes, integrate experimentally derived miRNA and mRNA datasets, perform ortholog mapping across species, and retrieve annotation and cross-reference identifiers for an expanded number of species. Here we use BRM to show that developmental exposure of zebrafish to 30 uM nicotine from 6-48 hours post fertilization (hpf) results in behavioral hyperactivity in larval zebrafish and alteration of putative miRNA gene targets in whole embryos at developmental stages that encompass early neurogenesis. We show typical workflows for using BRM to integrate experimental zebrafish miRNA and mRNA microarray datasets with example retrievals for zebrafish, including pathway annotation and mapping to human ortholog. Functional analysis of differentially regulated (p<0.05) gene targets in BRM indicates that nicotine exposure disrupts genes involved in neurogenesis, possibly through misregulation of nicotine-sensitive miRNAs.

CONCLUSIONS: BRM provides the ability to mine complex data for identification of candidate miRNAs or pathways that drive phenotypic outcome and, therefore, is a useful hypothesis generation tool for systems biology. The miRNA workflow in BRM allows for efficient processing of multiple miRNA and mRNA datasets in a single software environment with the added capability to interact with public data sources and visual analytic tools for HTP data analysis at a systems level. BRM is developed using Java™ and other open-source technologies for free distribution (http://www.sysbio.org/dataresources/brm.stm).

DOI10.1186/1471-2105-13-311
Alternate JournalBMC Bioinformatics
PubMed ID23174015
PubMed Central IDPMC3534564
Grant ListP42 ES016465 / ES / NIEHS NIH HHS / United States
P30_ES00210 / ES / NIEHS NIH HHS / United States
P42_ES016465 / ES / NIEHS NIH HHS / United States
R01_ES016513 / ES / NIEHS NIH HHS / United States