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miREC: a database of miRNAs involved in the development of endometrial cancer
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. (Bioinformatik)ORCID-id: 0000-0001-9242-4852
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. (Tumörbiologi, Tumor Biology / Infektionsbiologi, Infection Biology)
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. (Bioinformatik)ORCID-id: 0000-0003-1837-429X
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. (Tumörbiologi)
Vise andre og tillknytning
2015 (engelsk)Inngår i: BMC Research Notes, E-ISSN 1756-0500, Vol. 8, nr 1, artikkel-id 104Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background

Endometrial cancer (EC) is the most frequently diagnosed gynecological malignancy and the fourth most common cancer diagnosis overall among women. As with many other forms of cancer, it has been shown that certain miRNAs are differentially expressed in EC and these miRNAs are believed to play important roles as regulators of processes involved in the development of the disease. With the rapidly growing number of studies of miRNA expression in EC, there is a need to organize the data, combine the findings from experimental studies of EC with information from various miRNA databases, and make the integrated information easily accessible for the EC research community.

Findings

The miREC database is an organized collection of data and information about miRNAs shown to be differentially expressed in EC. The database can be used to map connections between miRNAs and their target genes in order to identify specific miRNAs that are potentially important for the development of EC. The aim of the miREC database is to integrate all available information about miRNAs and target genes involved in the development of endometrial cancer, and to provide a comprehensive, up-to-date, and easily accessible source of knowledge regarding the role of miRNAs in the development of EC. Database URL: http://www.mirecdb.orgwebcite.

Conclusions

Several databases have been published that store information about all miRNA targets that have been predicted or experimentally verified to date. It would be a time-consuming task to navigate between these different data sources and literature to gather information about a specific disease, such as endometrial cancer. The miREC database is a specialized data repository that, in addition to miRNA target information, keeps track of the differential expression of genes and miRNAs potentially involved in endometrial cancer development. By providing flexible search functions it becomes easy to search for EC-associated genes and miRNAs from different starting points, such as differential expression and genomic loci (based on genomic aberrations).

sted, utgiver, år, opplag, sider
BioMed Central, 2015. Vol. 8, nr 1, artikkel-id 104
Emneord [en]
Endometrial cancer, MicroRNA, Database
HSV kategori
Forskningsprogram
Medicin; Bioinformatik; Infektionsbiologi
Identifikatorer
URN: urn:nbn:se:his:diva-10891DOI: 10.1186/s13104-015-1052-9PubMedID: 25889518Scopus ID: 2-s2.0-84940717539OAI: oai:DiVA.org:his-10891DiVA, id: diva2:810712
Merknad

CC BY 4.0

© 2015 Ulfenborg et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Tilgjengelig fra: 2015-05-05 Laget: 2015-05-05 Sist oppdatert: 2024-01-17bibliografisk kontrollert
Inngår i avhandling
1. MicroRNA expression profiling in endometrial adenocarcinoma
Åpne denne publikasjonen i ny fane eller vindu >>MicroRNA expression profiling in endometrial adenocarcinoma
2015 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Örebro: Örebro university, 2015. s. 53
Serie
Örebro Studies in Medicine, ISSN 1652-4063 ; 118
Emneord
Endometrial cancer, microRNA, BDII rat model, normalization, endogenous controls
HSV kategori
Forskningsprogram
Medicin
Identifikatorer
urn:nbn:se:his:diva-10886 (URN)9789175290638 (ISBN)
Disputas
2015-03-27, Portalen, Högskolan i Skövde, Högskolevägen, 09:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2015-05-04 Laget: 2015-05-04 Sist oppdatert: 2023-05-02bibliografisk kontrollert
2. Bioinformatics tools for discovery and evaluation of biomarkers: Applications in clinical assessment of cancer
Åpne denne publikasjonen i ny fane eller vindu >>Bioinformatics tools for discovery and evaluation of biomarkers: Applications in clinical assessment of cancer
2016 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Cancer is a disease characterized by abnormal proliferation of cells in the body and ranks as the second leading cause of death worldwide. In order to improve cancer patient care, a major focus of cancer research is to discover biomarkers. A biomarker is a biological molecule found in tissues or body fluids and can be used to predict or assess disease states. The aim of this thesis is to develop bioinformatics tools for discovery and evaluation of novel biomarkers from high-throughput datasets.

MicroRNAs (miRNAs) are short non-coding RNAs that function as negative regulators of gene expression. Dysregulation of miRNAs in cancer is frequently reported, making them interesting as biomarker candidates. GenoScan was developed for genome-wide discovery of miRNA-coding genes, as a first step in the identification of novel mi-RNA biomarkers.

High-throughput technologies such as microarrays allow researchers to measure the expression of thousands of genes or miRNAs simultaneously. The Decision Trunk Classifier (DTC) algorithm has been developed to screen datasets from these experiments for biomarker candidates. When applied to a miRNA expression dataset for endometrial cancer (EC) samples vs. controls, a two-marker model with 98 % accuracy was generated. These miRNAs (hsa-miR-183-5p and hsa-miRPlus-C1070) are promising as biomarkers for EC screening.

The miREC database was developed to store gene and miRNA data from curated expression profiling studies of EC, as well as gene-miRNA regulatory connections. Using gene-miRNA interaction networks from miREC, the roles of miRNAs in cancer hallmark acquisition can be clarified. To further support exploratory analysis of expression data, DTC was extended with partial least squares regression models. The resulting PLS-DTC algorithm can be used to gain deeper insights into the perturbation of biological processes and pathways.

sted, utgiver, år, opplag, sider
Örebro: Örebro University, 2016. s. 75
Serie
Örebro Studies in Medicine, ISSN 1652-4063 ; 130
Emneord
Algorithms, biomarkers, machine learning, classification, cancer, microRNA database, microRNA discovery, partial least squares
HSV kategori
Forskningsprogram
Medicin; Bioinformatik
Identifikatorer
urn:nbn:se:his:diva-11824 (URN)978-91-7529-111-6 (ISBN)
Disputas
2016-02-03, Insikten (Portalen), Skövde, 23:05 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2016-01-22 Laget: 2016-01-12 Sist oppdatert: 2023-01-04bibliografisk kontrollert

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Ulfenborg, BenjaminJurcevic, SanjaLindelöf, AngelicaKlinga-Levan, KarinOlsson, Björn

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