J 2015

ToPASeq: an R package for topology-based pathway analysis of microarray and RNA-Seq data

IHNATOVÁ, Ivana and Eva BUDINSKÁ

Basic information

Original name

ToPASeq: an R package for topology-based pathway analysis of microarray and RNA-Seq data

Authors

IHNATOVÁ, Ivana (703 Slovakia, belonging to the institution) and Eva BUDINSKÁ (703 Slovakia, guarantor, belonging to the institution)

Edition

BMC Bioinformatics, London, BioMed Central, 2015, 1471-2105

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10103 Statistics and probability

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.435

RIV identification code

RIV/00216224:14110/15:00085197

Organization unit

Faculty of Medicine

UT WoS

000363616800001

Keywords in English

Topology; Pathway analysis; Microarray; RNA-Seq; Packages

Tags

Tags

International impact, Reviewed
Změněno: 11/12/2015 10:20, Ing. Mgr. Věra Pospíšilíková

Abstract

V originále

Background: Pathway analysis methods, in which differentially expressed genes are mapped to databases of reference pathways and relative enrichment is assessed, help investigators to propose biologically relevant hypotheses. The last generation of pathway analysis methods takes into account the topological structure of a pathway, which helps to increase both specificity and sensitivity of the findings. Simultaneously, the RNA-Seq technology is gaining popularity and becomes widely used for gene expression profiling. Unfortunately, majority of topological pathway analysis methods remains without implementation and if an implementation exists, it is limited in various factors. Results: We developed a new R/Bioconductor package ToPASeq offering uniform interface to seven distinct topology-based pathway analysis methods, of which three we implemented de-novo and four were adjusted from existing implementations. Apart this, ToPASeq offers a set of tailored visualization functions and functions for importing and manipulating pathways and their topologies, facilitating the application of the methods on different species. The package can be used to compare the differential expression of pathways between two conditions on both gene expression microarray and RNA-Seq data. The package is written in R and is available from Bioconductor 3.2 using AGPL-3 license. Conclusion: ToPASeq is a novel package that offers seven distinct methods for topology-based pathway analysis, which are easily applicable on microarray as well as RNA-Seq data, both in human and other species. At the same time, it provides specific tools for visualization of the results.

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology
LM2011028, research and development project
Name: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR