A custom microarray platform revealed that 86 significant probes had expression changes greater than 2-fold.
However, our recently published study comparing eight resistant and twelve reference, untreated embryos during late organogenesis using the same microarray platform revealed less than 1% of significant differently expressed genes [ 43].
The expression profiles recorded by using this oligonucleotide-based microarray platform revealed that during transition from the condition of plentiful S to S starvation, Synechocystis undergoes coordinated transcriptional changes, including changes in gene expression whose products are involved in sensing nutrient limitations and tuning bacterial metabolism.
Combination of samples from all microarray platforms revealed 17 common DE genes, (BMP4, CRYGD, DBH, GJB1, KRT83, MPZ, NHLH1, TACR3, ACTC1, MFAP4, SPARCL1, TAGLN, TPM2, CDC20, LHCGR, TM9SF1 and HCCS) 4 of which participate in numerous pathways.
Although different microarray platforms revealed different degrees of variation between MRP1 and MRP2, the GSEA analyses on the affected gene sets were similar among platforms.
Further detailed molecular analyses using microarray platforms revealed that voltage-gated K+ channels were specifically up-regulated in the VTA of 'susceptible' mice, and that this upregulation was connected to increased firing rates of dopaminergic VTA neurons 31.
The relatively high level of correlation between our microarray results and k-PCR data supports the validity of this microarray platform in revealing gene expression changes.
In this study a total of 1136 miRNAs were studied in children with ALL using microarray platform to reveal their contribution with regard to diagnosis, classification, and treatment period.
In recent years, genome-wide screening of copy number alterations by comparative genomic hybridization and genomic microarray platforms have revealed a characteristic MCL profile of multiple secondary gains and losses as well as regions of copy number neutral loss of heterozygosity that target mainly genes involved in cell cycle regulation, DNA damage response, and cell survival pathways.
Overall the two microarray platforms did not reveal a clear correlation between differential CpG methylation and differential mRNA expression in long-term culture or aging (Fig. 4B,C).
An investigation of the probe sequences of the most highly expressed genes in the microarray platforms did not reveal noticeable differences in the number of possible sequence matches between those found in MPSS and those not found in MPSS.
