Title
curatedOvarianData: clinically annotated data for the ovarian cancer transcriptome.
Abstract
This article introduces a manually curated data collection for gene expression meta-analysis of patients with ovarian cancer and software for reproducible preparation of similar databases. This resource provides uniformly prepared microarray data for 2970 patients from 23 studies with curated and documented clinical metadata. It allows users to efficiently identify studies and patient subgroups of interest for analysis and to perform meta-analysis immediately without the challenges posed by harmonizing heterogeneous microarray technologies, study designs, expression data processing methods and clinical data formats. We confirm that the recently proposed biomarker CXCL12 is associated with patient survival, independently of stage and optimal surgical debulking, which was possible only through meta-analysis owing to insufficient sample sizes of the individual studies. The database is implemented as the curatedOvarianData Bioconductor package for the R statistical computing language, providing a comprehensive and flexible resource for clinically oriented investigation of the ovarian cancer transcriptome. The package and pipeline for producing it are available from http://bcb.dfci.harvard.edu/ovariancancer.
Year
DOI
Venue
2013
10.1093/database/bat013
DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION
Keywords
Field
DocType
survival analysis,transcriptome,software design,data mining
Data collection,Data mining,Metadata,Computer science,Transcriptome,Bioconductor,Microarray analysis techniques,Biomarker (medicine),Clinical study design,Bioinformatics,Debulking
Journal
Volume
ISSN
Citations 
2013
1758-0463
4
PageRank 
References 
Authors
0.56
14
12