Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology

<p>Abstract</p> <p>Background</p> <p>During the last years the analysis of microRNA expression patterns has led to completely new insights into cancer biology. Furthermore, these patterns are a very promising tool for the development of new diagnostic and prognostic mar...

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Main Authors: Kreipe Hans, Christgen Matthias, Hasemeier Britta, Lehmann Ulrich
Format: Article
Language:English
Published: BMC 2008-11-01
Series:BMC Biotechnology
Online Access:http://www.biomedcentral.com/1472-6750/8/90
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author Kreipe Hans
Christgen Matthias
Hasemeier Britta
Lehmann Ulrich
author_facet Kreipe Hans
Christgen Matthias
Hasemeier Britta
Lehmann Ulrich
author_sort Kreipe Hans
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>During the last years the analysis of microRNA expression patterns has led to completely new insights into cancer biology. Furthermore, these patterns are a very promising tool for the development of new diagnostic and prognostic markers. However, most human tumour samples for which long term clinical records are available exist only as formalin-fixed paraffin-embedded specimens. Therefore, the aim of this study was to examine the feasibility of microRNA profiling studies in routinely processed formalin-fixed paraffin-embedded human breast cancer specimens using fluorescence labelled bead technology.</p> <p>Results</p> <p>A statistically highly significant correlation (Spearman r: 0.78 – 0.90, p < 0.0001) was observed for the expression of 319 microRNAs in routinely processed FFPE breast cancer specimens and paired fresh frozen tissue samples (n = 5). Results were confirmed in a larger series analyzing a selection of 10 microRNAs reported to be deregulated in breast cancer (n = 12). The expression pattern of 3 microRNAs was independently validated in this cohort using real-time RT-PCR technology.</p> <p>Conclusion</p> <p>Comprehensive microRNA expression patterns can be reliably derived from routinely processed FFPE breast cancer specimens using fluorescence labelled bead technology.</p>
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spelling doaj.art-5945ad40afe448b19750e5706d537e162022-12-22T03:07:50ZengBMCBMC Biotechnology1472-67502008-11-01819010.1186/1472-6750-8-90Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technologyKreipe HansChristgen MatthiasHasemeier BrittaLehmann Ulrich<p>Abstract</p> <p>Background</p> <p>During the last years the analysis of microRNA expression patterns has led to completely new insights into cancer biology. Furthermore, these patterns are a very promising tool for the development of new diagnostic and prognostic markers. However, most human tumour samples for which long term clinical records are available exist only as formalin-fixed paraffin-embedded specimens. Therefore, the aim of this study was to examine the feasibility of microRNA profiling studies in routinely processed formalin-fixed paraffin-embedded human breast cancer specimens using fluorescence labelled bead technology.</p> <p>Results</p> <p>A statistically highly significant correlation (Spearman r: 0.78 – 0.90, p < 0.0001) was observed for the expression of 319 microRNAs in routinely processed FFPE breast cancer specimens and paired fresh frozen tissue samples (n = 5). Results were confirmed in a larger series analyzing a selection of 10 microRNAs reported to be deregulated in breast cancer (n = 12). The expression pattern of 3 microRNAs was independently validated in this cohort using real-time RT-PCR technology.</p> <p>Conclusion</p> <p>Comprehensive microRNA expression patterns can be reliably derived from routinely processed FFPE breast cancer specimens using fluorescence labelled bead technology.</p>http://www.biomedcentral.com/1472-6750/8/90
spellingShingle Kreipe Hans
Christgen Matthias
Hasemeier Britta
Lehmann Ulrich
Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
BMC Biotechnology
title Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
title_full Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
title_fullStr Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
title_full_unstemmed Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
title_short Reliable microRNA profiling in routinely processed formalin-fixed paraffin-embedded breast cancer specimens using fluorescence labelled bead technology
title_sort reliable microrna profiling in routinely processed formalin fixed paraffin embedded breast cancer specimens using fluorescence labelled bead technology
url http://www.biomedcentral.com/1472-6750/8/90
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