title: The pancreatic expression database: recent extensions and updates.
abstract: The Pancreatic Expression Database (PED, http://www.pancreasexpression.org) is the only device currently available for mining of pancreatic cancer literature data. It brings together the largest collection of multidimensional pancreatic data from the literature including genomic, proteomic, microRNA, methylomic and transcriptomic profiles. PED allows the user to ask specific questions on the observed levels of deregulation among a broad range of specimen/experimental types including healthy/patient tissue and body fluid specimens, cell lines and murine models as well as related treatments/drugs data. Here we provide an update to PED, which has been previously featured in the Database issue of this journal. Briefly, PED data content has been substantially increased and expanded to cover methylomics studies. We introduced an extensive controlled vocabulary that records specific details on the samples and added data from large-scale meta-analysis studies. The web interface has been improved/redesigned with a quick search option to rapidly extract information about a gene/protein of interest and an upload option allowing users to add their own data to PED. We added a user guide and implemented integrated graphical tools to overlay and visualize retrieved information. Interoperability with biomart-compatible data sets was significantly improved to allow integrative queries with pancreatic cancer data.
authors.affiliation: Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK and Molecular GI-Onkologie (MGO), University of Bochum, Germany.
authors.forename: Abu Z
authors.initials: AZ
authors.lastname: Dayem Ullah
authors.forename: Rosalind J
authors.initials: RJ
authors.lastname: Cutts
authors.forename: Millika
authors.initials: M
authors.lastname: Ghetia
authors.forename: Emanuela
authors.initials: E
authors.lastname: Gadaleta
authors.forename: Stephan A
authors.initials: SA
authors.lastname: Hahn
authors.forename: Tatjana
authors.initials: T
authors.lastname: Crnogorac-Jurcevic
authors.forename: Nicholas R
authors.initials: NR
authors.lastname: Lemoine
authors.forename: Claude
authors.initials: C
authors.lastname: Chelala
mesh_terms: D000818:Animals; D030541:Databases, Genetic; D015870:Gene Expression; D006801:Humans; D020407:Internet; D051379:Mice; D010179:Pancreas / Q000378:metabolism*; D010190:Pancreatic Neoplasms / Q000235:genetics* / Q000378:metabolism