An alternative method to amplify RNA without loss of signal conservation for expression analysis with a proteinase DNA microarray in the ArrayTube® format
2006

New Method for RNA Amplification in Microarray Analysis

publication Evidence: moderate

Author Information

Author(s): Schüler Susann, Wenz Ingrid, Wiederanders B, Slickers P, Ehricht R

Primary Institution: Institute of Biochemistry, Klinikum, Friedrich-Schiller-Universität Jena, Germany

Hypothesis

Can we develop a more efficient RNA amplification method for microarray analysis that preserves signal integrity?

Conclusion

The new RNA amplification protocol allows for the detection of low-expressed genes using minimal RNA amounts while maintaining signal integrity.

Supporting Evidence

  • The new protocol can amplify RNA from as little as 100 ng of total RNA.
  • Signal integrity was preserved as demonstrated by QRT-PCR measurements.
  • The method is applicable for clinical samples with limited material.

Takeaway

This study created a new way to amplify RNA that works well even with tiny samples, making it easier to study genes in small amounts of tissue.

Methodology

The study developed a custom-designed proteinase DNA microarray and a modified SPA protocol for RNA amplification and hybridization.

Limitations

The screening character of microarray data requires independent verification of results.

Digital Object Identifier (DOI)

10.1186/1471-2164-7-144

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