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MiRNA expression patterns predict survival in glioblastoma.
Radiat. Oncol. 6:153 (2011)
In order to define new prognostic subgroups in patients with glioblastoma a miRNA screen (> 1000 miRNAs) from paraffin tissues followed by a bio-mathematical analysis was performed. 35 glioblastoma patients treated between 7/2005 - 8/2008 at a single institution with surgery and postoperative radio(chemo)therapy were included in this retrospective analysis. For microarray analysis the febit biochip "Geniom® Biochip MPEA homo-sapiens" was used. Total RNA was isolated from FFPE tissue sections and 1100 different miRNAs were analyzed. It was possible to define a distinct miRNA expression pattern allowing for a separation of distinct prognostic subgroups. The defined miRNA pattern was significantly associated with early death versus long-term survival (split at 450 days) (p = 0.01). The pattern and the prognostic power were both independent of the MGMT status. At present, this is the first dataset defining a prognostic role of miRNA expression patterns in patients with glioblastoma. Having defined such a pattern, a prospective validation of this observation is required.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
radiotherapy; glioblastoma; microRNA; methylation; prognosis
ISSN (print) / ISBN
1748-717X
e-ISSN
1748-717X
Journal
Radiation Oncology
Quellenangaben
Volume: 6,
Issue: 1,
Article Number: 153
Publisher
BioMed Central
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Biology (ISB)