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Quantitative PCR based expression analysis on a nanoliter scale using polymer nano-well chips

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons50130

Dahl,  Andreas
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50584

Sultan,  Marc
Human Chromosome 21 (Marie-Laure Yaspo), Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

Schwartz,  Regine
Max Planck Society;

Lange,  Matthias
Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50409

Lehrach,  Hans
Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society;

Nyarsik,  Lajos
Max Planck Society;

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Zitation

Dahl, A., Sultan, M., Jung, A., Schwartz, R., Lange, M., Steinwand, M., et al. (2007). Quantitative PCR based expression analysis on a nanoliter scale using polymer nano-well chips. Biomedical Microdevices, 9(3), 307-314. doi:10.1007/s10544-006-9034-2.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-81C2-D
Zusammenfassung
The analysis of gene expression is an essential element of functional genomics. Expression analysis is mainly based on DNA microarrays due to highly parallel readout and high throughput. Quantitative PCR (qPCR) based expression profiling is the gold standard for the precise monitoring of selected genes, and therefore used for validation of microarray data. Doing qPCR-based expression analysis in an array-like format can combine the higher sensitivity and accuracy of the qPCR methodology with a high data density at relatively low costs. This paper describes the development of an open-well based miniaturized platform for liquid PCR-based assays on the nanoliter scale using cost-effective polypropylene micro reactors (μPCR Chip). We show the quantification ability and reliability of qPCR in 200 nl with the μPCR chip down to 5 starting target molecules using TaqMan ® chemistry. An RNA expression analysis of four genes in mouse brain, liver and kidney tissues showed similar results in 200 nl as compared to standard 10 μl assays. The high sensitivity and quantification capability of the μPCR chip platform developed herein makes it a promising technology for performing high-throughput qPCR-based analysis in the nanoliter volume range.