Ring 0.4808 0.0026 37 miRNASeq 0.4720 0.0032p,0.0001 value n*The number of miRNA transcripts shared among all platforms and detected by qPCR in the fresh frozen and formalin-fixed paraffin embedded samples as indicated. Spearman correlation coefficient (rs) and its associated p-value are indicated. doi:10.1371/journal.pone.0052517.tMulti-Platform Analysis of MicroRNA Expressiondendrimer. Labeled samples were subsequently processed according to manufacturer’s instructions for the Affymetrix miRNA Array 1.0 (Santa Clara, CA). After hybridization for 16 h at 48uC, the arrays were washed and stained in an Affymetrix Fluidics station 450, then scanned in an Affymetrix 3000 7G scanner.Agilent miRNA ArraysThe Human miRNA v2 Microarray Kit (8615K) was used according to manufacturer’s instructions to profile miRNA transcripts on the Agilent Technologies miRNA platform (Santa Clara, CA). Briefly, the Agilent Spike-In control was combined with 100 ng of total RNA sample and both were subjected to dephosphorylation and Docosahexaenoyl ethanolamide Cyanine3-pCp ligation. Samples were purified using BioRad MicroBioSpin 6 columns (Hercules, CA) prior to drying and assembly of the hybridization solution. Arrays were hybridized in a 45 ml volume with rotation at 20 rpm for 20 h at 55uC. Agilent Gene Expression Wash Buffers 1(RT) and 2(37uC) were used after hybridization as recommended for the Agilent miRNA Microarray System. Agilent arrays were scanned on a GenePix 4000B scanner (Molecular Devices, Sunnyvale, CA) using 5 mm resolution.Illumina miRNA ArraysSamples were analyzed according to manufacturer’s instructions for the now discontinued Illumina miRNA array (San Diego, CA). Briefly, 200 ng of total RNA was reverse transcribed with biotinylated oligo(dT) and 15481974 random nonamer primers. The resulting cDNA was annealed to chimeric query oligonucleotides, which contain a gene-specific region and a universal primer sequence for PCR amplification, and then bound to streptavidinconjugated paramagnetic particles. The gene-specific oligonucleotides were extended by second-strand cDNA synthesis and then ligated. Subsequently, the products were sequestered by magnetic separation, washed to remove unbound molecules, and then amplified by PCR with fluorophore-labeled universal primers. The resulting PCR products were purified, applied to HumanRef-8 v3 beadchips (Illumina), and then hybridized for 16 h at 58uC. The beadchips were washed and then scanned in a BeadArray Reader using BeadScan v3 software (Illumina). Quality control parameters were determined to be within normal ranges before proceeding to the final data reduction. Raw, non-normalized, Illumina intensity values were used to compare across platforms.ml), 8 ml of 96-plex reverse primer (Applied Biosystems); mixed to allow a final concentration of 0.05X of each) and 1.6 ml of dH2O. Fifty nanograms of total RNA was added to the reaction mixture and incubated as follows; 16uC for 30 min, 42uC for 30 min and then 85uC for 5 min. Docosahexaenoyl ethanolamide web Pre-amplification of cDNA was then initiated by creating a pool of 96 TaqMan miRNA Assays at a final concentration of 0.2X for 
each assay. The pre-PCR amplification reaction was performed in a 10 ml reaction mixture containing 5 ml TaqMan PreAmp Master Mix (2X), 2.5 ml of 96-pooled TaqMan assay mix (0.2X) and 2.5 ml of cDNA. The pre-amplification PCR was performed according to the following cycling conditions: one cycle 95uC for 10 min, 10 cycles at 95uC for 15 sec and then 60uC for 4 min. After pre-amplification.Ring 0.4808 0.0026 37 miRNASeq 0.4720 0.0032p,0.0001 value n*The number of miRNA transcripts shared among all platforms and detected by qPCR in the fresh frozen and formalin-fixed paraffin embedded samples as indicated. Spearman correlation coefficient (rs) and its associated p-value are indicated. doi:10.1371/journal.pone.0052517.tMulti-Platform Analysis of MicroRNA Expressiondendrimer. Labeled samples were subsequently processed according to manufacturer’s instructions for the Affymetrix miRNA Array 1.0 (Santa Clara, CA). After hybridization for 16 h at 48uC, the arrays were washed and stained in an Affymetrix Fluidics station 450, then scanned in an Affymetrix 3000 7G scanner.Agilent miRNA ArraysThe Human miRNA v2 Microarray Kit (8615K) was used according to manufacturer’s instructions to profile miRNA transcripts on the Agilent Technologies miRNA platform (Santa Clara, CA). Briefly, the Agilent Spike-In control was combined with 100 ng of total RNA sample and both were subjected to dephosphorylation and Cyanine3-pCp ligation. Samples were purified using BioRad MicroBioSpin 6 columns (Hercules, CA) prior to drying and assembly of the hybridization solution. Arrays were hybridized in a 45 ml volume with rotation at 20 rpm for 20 h at 55uC. Agilent Gene Expression Wash Buffers 1(RT) and 2(37uC) were used after hybridization as recommended for the Agilent miRNA Microarray System. Agilent arrays were scanned on a GenePix 4000B scanner (Molecular Devices, Sunnyvale, CA) using 5 mm resolution.Illumina miRNA ArraysSamples were analyzed according to manufacturer’s instructions for the now discontinued Illumina miRNA array (San Diego, CA). Briefly, 200 ng of total RNA was reverse transcribed with biotinylated oligo(dT) and 15481974 random nonamer primers. The resulting cDNA was annealed to chimeric query oligonucleotides, which contain a gene-specific region and a universal primer sequence for PCR amplification, and then bound to streptavidinconjugated paramagnetic particles. The gene-specific oligonucleotides were extended by second-strand cDNA synthesis and then ligated. Subsequently, the products were sequestered by magnetic separation, washed to remove unbound molecules, and then amplified by PCR with fluorophore-labeled universal primers. The resulting PCR products were purified, applied to HumanRef-8 v3 beadchips (Illumina), and then hybridized for 16 h at 58uC. The beadchips were washed and then scanned in a BeadArray Reader using BeadScan v3 software (Illumina). Quality control parameters were determined to be within normal ranges before proceeding to the final data reduction. Raw, non-normalized, Illumina intensity values were used to compare across platforms.ml), 8 ml of 96-plex reverse primer (Applied Biosystems); mixed to allow a final concentration of 0.05X of each) and 1.6 ml of dH2O. Fifty nanograms of total RNA was added to the reaction mixture and incubated as follows; 16uC for 30 min, 42uC for 30 min and then 85uC for 5 min. Pre-amplification of 
cDNA was then initiated by creating a pool of 96 TaqMan miRNA Assays at a final concentration of 0.2X for each assay. The pre-PCR amplification reaction was performed in a 10 ml reaction mixture containing 5 ml TaqMan PreAmp Master Mix (2X), 2.5 ml of 96-pooled TaqMan assay mix (0.2X) and 2.5 ml of cDNA. The pre-amplification PCR was performed according to the following cycling conditions: one cycle 95uC for 10 min, 10 cycles at 95uC for 15 sec and then 60uC for 4 min. After pre-amplification.