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Series GSE15398 Query DataSets for GSE15398
Status Public on Jun 02, 2009
Title Evaluation of methods for amplification of picogram amounts of total RNA for whole genome expression profiling
Organism Homo sapiens
Experiment type Expression profiling by array
Summary For more than a decade, microarrays have been a powerful and widely used tool to explore the transcriptome of biological systems. However, the amount of biological material from cell sorting or laser capture microdissection is much too small to perform microarray studies. To address this issue, RNA amplification methods have been developed to generate sufficient targets from picogram amounts of total RNA to perform microarray hybridisation. In this study, four commercial protocols for amplification of picograms amounts of input RNA for microarray expression profiling were evaluated and compared. The quantitative and qualitative performances of the methods were assessed. Microarrays were hybridised with the amplified targets and the amplification protocols were compared with respect to the quality of expression profiles, reproducibility within a concentration range of input RNA, and sensitivity.
 
Overall design Four commercial protocols for amplification of picograms amounts of input RNA for microarray expression profiling were evaluated and compared. For each protocol, one RNA amplification was performed from 250 pg, and one from 500 pg of human universal RNA by two operators in two independent laboratories and compared to the amplified aRNA obtained from 2 µg and 100 ng RNA inputs following the standard protocol proposed by Affymetrix. A negative control (amplification without total RNA) and a positive control (if available) were included in each experimental batch.
Samples indicating 50, 100, and 1000 pg RNA inputs correspond to 3 additional quantities of total RNA used to synthesise the cDNA target using the nugen protocol for comparison (250, 500 pg + 50, 100, 1000 pg).
 
Contributor(s) Clément-Ziza M, Gentien D, Lyonnet S, Thiery J, Besmond C, DECRAENE C
Citation(s) 19470167
Submission date Mar 25, 2009
Last update date Mar 25, 2019
Contact name charles decraene
Organization name Institut Curie
Street address 26 rue d'ULM
City Paris
ZIP/Postal code 75248 cedex 05
Country France
 
Platforms (1)
GPL570 [HG-U133_Plus_2] Affymetrix Human Genome U133 Plus 2.0 Array
Samples (27)
GSM386134 Universal Human Reference RNA amplified using the one cycle amplification kit from Affymetrix, 2 µg, rep1
GSM386135 Universal Human Reference RNA amplified using the one cycle amplification kit from Affymetrix, 2 µg, rep2
GSM386136 Universal Human Reference RNA amplified using the one cycle amplification kit from Affymetrix, 100 ng, rep1
Relations
BioProject PRJNA115879

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Supplementary file Size Download File type/resource
GSE15398_RAW.tar 215.6 Mb (http)(custom) TAR (of CEL, CHP)
Processed data included within Sample table
Processed data provided as supplementary file

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