Cited by 2,623Gene expression and cancer classificationMolecular Biology Techniques and ApplicationsGenomics and Phylogenetic Studies

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The RIN: an RNA integrity number for assigning integrity values to RNA measurements

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Schroeder, Andreas, Mueller, Odilo, Stocker, Susanne, Salowsky, Ruediger, Leiber, Michael, Gassmann, Marcus, Lightfoot, Samar, Menzel, Wolfram, Granzow, Martin, Ragg, Thomas·2006·BMC Molecular Biology

Abstract

Background: The integrity of RNA molecules is of paramount importance for experiments that try to reflect the snapshot of gene expression at the moment of RNA extraction. Until recently, there has been no reliable standard for estimating the integrity of RNA samples and the ratio of 28S:18S ribosomal RNA, the common measure for this purpose, has been shown to be inconsistent. The advent of microcapillary electrophoretic RNA separation provides the basis for an automated high-throughput approach, in order to estimate the integrity of RNA samples in an unambiguous way. Methods: A method is introduced that automatically selects features from signal measurements and constructs regression models based on a Bayesian learning technique. Feature spaces of different dimensionality are compared in the Bayesian framework, which allows selecting a final feature combination corresponding to models with high posterior probability. Results: This approach is applied to a large collection of electrophoretic RNA measurements recorded with an Agilent 2100 bioanalyzer to extract an algorithm that describes RNA integrity. The resulting algorithm is a user-independent, automated and reliable procedure for standardization of RNA quality control that allows the calculation of an RNA integrity number (RIN). Conclusion: Our results show the importance of taking characteristics of several regions of the recorded electropherogram into account in order to get a robust and reliable prediction of RNA integrity, especially if compared to traditional methods.

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Research works printed but not linked: 3

  1. Mueller O, Lightfoot S, Schröder A: RNA Integrity Number (RIN) Standardization of RNA Quality Control. Tech. Rep. 5989-1165EN, Agilent Technologies, Application Note. 2004, http://www.agilent.com/chem/labonachip
  2. Schröder A: Qualitätsbestimmung von RNA-Proben mittels adaptiver Verfahren. Diplomarbeit Universität Karlsruhe. 2003
  3. Agilent : 2100 expert software. Tech. Rep. 5989-0112EN, Agilent Technologies, Software Data Sheet. 2004, http://www.agilent.com/chem/labonachip

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Metadata

Authors
Schroeder, A., Mueller, O., Stocker, S., Salowsky, R., Leiber, M., Gassmann, M., Lightfoot, S., Menzel, W., Granzow, M., & Ragg, T.
Affiliations
  • Agilent Technologies (United States) (US)
  • Agilent Technologies (Germany) (DE)
  • Karlsruhe Institute of Technology (DE)
Corresponding author
  • Mueller, Odilo
  • Ragg, Thomas
Venue
BMC Molecular Biology
Published
2006-01-31
Volume
7
Issue
1
Pages
3-3
ISSN
1471-2199 (ISSN-L)
OpenAlex
W1696199194
Cited by
2,623
References
18
Citations by year
2026: 97 · 2025: 106 · 2024: 135 · 2023: 111 · 2022: 132 · 2021: 172 · 2020: 129 · 2019: 108 · 2018: 169 · 2017: 138 · 2016: 166 · 2015: 149 · 2014: 162 · 2013: 180 · 2012: 145
FWCI
33.21
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Molecular Biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Johns Hopkins University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Molecular Biology Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
RNA integrity number, RNA quality control, Agilent 2100 Bioanalyzer, Bayesian feature selection, regression models, gene expression
MeSH terms
Algorithms, Animals, Bayes Theorem, Humans, Quality Control, RNA, Software, Linear Models, Polymerase Chain Reaction, Neural Networks, Computer, Gene Expression Profiling, Electrophoresis, Microchip, Mice, Rats

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