To investigate the evolutionary divergence of transcriptional regulation between the mouse subspecies, we performed transcriptome analysis by microarray on testes from the X-chromosome substitution strain, which carries different subspecies-derived X chromosome on the host subspecies genome. Transcription profiling showed that large-scale aberrations in gene expression were occurred on the introgressed X chromosome. This improper expression was restored by introducing chromosome 1 from the same donor strain as the X chromosome, suggesting that the genetic incompatibility between trans-acting regulatory gene(s) on chromosome 1 and X-linked downstream genes might be a cause of the misregulation.
Evolutionarily diverged regulation of X-chromosomal genes as a primal event in mouse reproductive isolation.
Specimen part
View SamplesThe publicly available genome sequence information of two rice strains, japonica cultivar Nipponbare and indica cultivar 93-11, opens a great opportunity for investigation of performances DNA genotyping by high-density oligonucleotide arrays. Here, we compare single feature polymorphism (SFP) detection performances between whole genome hybridization and transcript hybridization using Affymetrix Rice Expression Array and the two rice cultivars.
A simple optimization can improve the performance of single feature polymorphism detection by Affymetrix expression arrays.
Specimen part
View SamplesNucleotide polymorphisms can potentially influence the hybridization of mRNA to 25-mer oligonucleotides. Because Affymetrix Rice Genome Array was designated mainly for Nipponbare genome of Oryza sativa, the expression level of other varieties could not be estimated correctly. We tried to apply new approaches to estimate expression level by discerning the probe-level differential hybridization.
SNEP: Simultaneous detection of nucleotide and expression polymorphisms using Affymetrix GeneChip.
Specimen part
View SamplesRat mast cell line RBL-2H3 was analyzed to investigate the molecular mechanism of Dectin-1-mediated activation and responses of mast cells.
Dectin-1-mediated signaling leads to characteristic gene expressions and cytokine secretion via spleen tyrosine kinase (Syk) in rat mast cells.
Specimen part, Cell line
View SamplesGene expression analysis to compare control cells and sorted cells
Identification of two major autoantigens negatively regulating endothelial activation in Takayasu arteritis.
Specimen part
View SamplesTarget gene of mineralocorticoid receptor (MR) is comparatively unknown, although distal convoluted tubule (DCT) expresses MR in in vivo.
Genome-wide analysis of murine renal distal convoluted tubular cells for the target genes of mineralocorticoid receptor.
Cell line, Treatment
View SamplesTranscriptional profiling of NKAES-derived NK cells after 7 days of culture compared to primary human NK cells and NK cells stimulated by low or high dose IL2 after 7 days of culture.
Expansion of highly cytotoxic human natural killer cells for cancer cell therapy.
Specimen part
View SamplesWe used microarrays to detail the global gene expression changes during aging in fly heads and identified genes related to the unfolded protein response are up-regulated upon aging.
EDEM Function in ERAD Protects against Chronic ER Proteinopathy and Age-Related Physiological Decline in Drosophila.
Age, Specimen part
View SamplesInduced pluripotent stem (iPS) cells give rise to neural stem cells, which are applicable for therapeutic transplantation in treatment of neural diseases. However, generation of neural stem cells from iPS cells requires a careful selection of safe iPS clones. We sought to determine whether direct induction of neural stem cells from partially reprogrammed somatic cells is able to generate safer cells rapidly. We have successfully established direct induction system from fibroblast to neural stem cells. To characterize these directly induced neural stem cells, Gene expression profiles were compared with iPS cell or ES cell-derived neurosphere. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several method.
Neural stem cells directly differentiated from partially reprogrammed fibroblasts rapidly acquire gliogenic competency.
Specimen part
View SamplesRecent reports have emphasized the pitfalls of iPSC technology including the potential for immunogenicity of transplanted cells. It is serious safety-related concern for iPSC-based cell therapy. However, preclinical data supporting the safety and efficacy of iPSCs are also accumulating. To address the concern of immunogenicity of ESCs/iPSCs or ESCs/iPSCs-derived neurospheres, global gene expression profiles were compared between undifferentiated mouse ESCs (EB3 line), mouse iPSCs (38C2 line), and ESC/iPSC-derived neurosphere and mouse primary culture of neurosphere obtained from fetal mouse ganglionic eminence. Mouse adult sklin fibroblast was used as a control.
Neural stem cells directly differentiated from partially reprogrammed fibroblasts rapidly acquire gliogenic competency.
Specimen part
View Samples