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Reverse protein arrays as novel approach for protein quantification in muscular dystrophies

Escher, Claudia and Lochmüller, Hanns and Fischer, Dirk and Frank, Stephan and Reimann, Jens and Walter, Maggie C. and Ehrat, Markus and Ruegg, Markus A. and Gygax, Daniel. (2010) Reverse protein arrays as novel approach for protein quantification in muscular dystrophies. Neuromuscular disorders, 20. pp. 302-309.

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Official URL: http://edoc.unibas.ch/dok/A5846074

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Abstract

The definite molecular diagnosis in patients with muscular dystrophies often requires the assessment of muscular expression of multiple proteins in small amounts of muscle tissue. The sample material obtained in muscle biopsies is limited and the measurement of multiple proteins is often restricted to conventional, non-quantitative assays, i.e. immunohistochemistry and immunoblotting. Here, we demonstrate that reverse protein arrays are a novel and excellent material-saving method for the measurement and quantification of changes in protein expression between healthy and diseased muscle tissue as well as cultured primary myotubes. We evaluated a set of antibodies and found reproducible differences between Duchenne muscular dystrophy/limb-girdle muscular dystrophy patients and control samples for dystrophin, the sarcoglycans and the dystroglycans. As little as 10 mg of tissue is sufficient for the analysis of all diagnostically relevant proteins. The average coefficient of variation calculated for the sample signals confirmed that the method is highly reproducible. Thus, our experiments provide strong evidence that quantitative protein detection from very small amounts of muscle tissue is possible using reverse protein arrays. This technology may not only be of interest for diagnostic purposes, but also for protein quantification of multiple, follow-up biopsies during clinical trials when protein expression in muscle is considered an important outcome measure or biomarker.
Faculties and Departments:03 Faculty of Medicine > Bereich Querschnittsfächer (Klinik) > Pathologie USB > Neuro- und Muskelpathologie (Frank)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Querschnittsfächer (Klinik) > Pathologie USB > Neuro- und Muskelpathologie (Frank)
05 Faculty of Science > Departement Biozentrum > Neurobiology > Pharmacology/Neurobiology (Rüegg)
UniBasel Contributors:Rüegg, Markus A. and Frank, Stephan and Fischer, Dirk
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Pergamon Press
ISSN:0960-8966
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Identification Number:
Last Modified:29 Sep 2017 06:36
Deposited On:14 Sep 2012 06:37

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