Examination of microarray datasets supports the hypothesis that PPARGC1A is less abundant in HepG2 than in HuH7 cells and moreover its level of expression is frequently downregulated in HCC [ 64], including HepG2 cells, and is essential for proper hepatic gene transcription and differentiation [ 65].
Datasets supporting the results of this article are available in the NCBI Gene Expression Omnibus archive under accession number GSE62010 (sequencing), GSE62011 (microarray),and GSE62017 (NanoString).
In attempt to validate our data, we found that 4 out of 37 genes, targeted by the 3 miRs, were also modulated, in a concerted fashion, in HCV genotype 2a chimeric virus J6/JFH microarray datasets [ 31] supporting the biological relevance of our results.
MIRNA genes are transcribed by RNAPol II [7], [8], [116] and therefore polyadenylated MIRNA precursor gene transcripts should be detected in the whole genome tiling microarray datasets and evidence (Figure 2) supports this model.
Here we verified these data using independent expression microarray datasets where collectively these findings support the general concept that MIF is differentially expressed between non-malignant and malignant lesions with increased expression during melanoma progression.
Other existing breast cancer microarray datasets were used in support of the resampling-based meta-analysis.
With specific regard to DNA microarray datasets, the method is designed to support computationally intensive model selection in classification problems in which the number of features is much larger than the number of samples.
The expression levels of five NAC genes including PNAC070, 086, 121 and 122 were peaked exclusively in differentiating xylems supported by two independent microarray datasets [ 87, 88].
Analysis of a second microarray dataset [ 25] supported these findings and showed that patients with the combination of high levels of elastase (ELA2) expression concomitant with low levels of elafin expression were more likely to relapse and die from their breast cancer sooner after diagnosis than patients with high elafin expression and low elastase expression (P =.05, Figure 6E).
The QNBC/5NPs was observed in about 6~8% of total samples from publicly available breast cancer microarray datasets, and about 40% of TNBCs were non-BLBCs, which supports that TNBCs is not synonymous with BLBCs.
Based upon the analysis of 599 microarrays (five separate cDNA microarray datasets) using a novel approach, we present evidence in support of the most consistently identifiable subtypes of breast cancer tumor tissue microarrays being: ESR1+/ERBB2-, ESR1-/ERBB2-, and ERBB2+ (collectively called the ESR1/ERBB2 subtypes).
