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GSE45155
Mus musculus
8 Downloadable Samples
Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
The Hippo pathway plays a crucial in organ size control during development and tissue homeostasis in adult life. To examine a role for Hippo signaling in the intestinal epithelium, we analyzed gene expression patterns in the mouse intestinal epithelilum transfected with siRNAs or expression plasmids for shRNAs targeting the Hippo pathway effectors, YAP and TAZ.
Publication Title
Dual role of YAP and TAZ in renewal of the intestinal epithelium.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment
View Samples- Homo sapiens
- 276 Downloadable Samples
Ion Torrent Proton
Description
We collected and compared samples from the cohort consisted of six groups as follows: methotrexate (MTX) monotherapy, combination therapy of MTX and infliximab (IFX), tocilizumab (TCZ) monotherapy, age- and gender-matched HC, and a small number of synovial fluid samples. In order to reduce variation due to the proportion of cells at each developmental stage, we performed transcriptome analysis after sorting CD4+ and CD8+ T cells according to developmental stage. We created a gene list that was significantly expressed in RA T cells, and revealed that pathways such as mTORC1, IL-2-stat5, Cell cycle and interferon-related genes were significantly enriched among them. Overall design: Examination among healthy controls and patients with rheumatoid arthritis, including before and after treatment
Publication Title
Multi-dimensional analysis identified rheumatoid arthritis-driving pathway in human T cell.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Subject
View Samples- Homo sapiens
- 22 Downloadable Samples
- Ion Torrent Proton
Description
We compared whole CD4+ and CD8+ T cells from frozen PBMC samples that were collected before and after treatment initiation of each patient with rheumatoid arthritis. Lists consisting of 858 and 950 differentially expressed genes were created from CD4 and CD8, respectively, and these were used for enrichment analysis. As a result, we found that certain pathways were downregulated after TCZ treatment in both CD4+ and CD8+ T cells, including mechanistic target of rapamycin complex 1 (mTORC1) signaling, the IL-2 pathway, and IFN-related genes. Overall design: Examination between before and after tocilizumab treatment of CD4 and CD8 T cell in rheumatoid arthritis patients
Publication Title
Multi-dimensional analysis identified rheumatoid arthritis-driving pathway in human T cell.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Subject
View Samples- Mus musculus
- 19 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
The ERK family of MAP kinase plays a critical role in growth factor-stimulated cell cycle progression from G0/G1 to S phase. But, how sustained activation of ERK promotes G1 progression has remained unclear. Here, our systematic analysis on the temporal program of ERK-dependent gene expression shows that sustained activation of ERK is required for induction and maintenance of the decreased expression levels of a set of genes. Moreover, our cell biological analysis reveals that these ERK-dependent downregulated genes have the ability to block S phase entry. Cessation of ERK activation at mid or late G1 leads to a rapid increase of these anti-proliferative genes and results in the inhibition of S phase entry. These findings uncover an important mechanism by which the duration of ERK activation regulates cell cycle progression through dynamic changes in gene expression, and identify novel ERK target genes crucial for the regulation of cell cycle progression.
Publication Title
Continuous ERK activation downregulates antiproliferative genes throughout G1 phase to allow cell-cycle progression.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 10 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
In skeletal muscle differentiation, muscle-specific genes are regulated by two groups of transcription factors, the MyoD and MEF2 families, which work together to drive the differentiation process. Here we show that ERK5 regulates muscle cell fusion through Klf transcription factors. The inhibition of ERK5 activity suppresses muscle cell fusion with minimal effects on the expression of MyoD, MEF2, and their target genes. Promoter analysis coupled to microarray assay reveals that Klf-binding motifs are highly enriched in the promoter regions of ERK5-dependent upregulated genes. Remarkably, Klf2 and Klf4 expression are also upregulated during differentiation in an ERK5-dependent manner, and knockdown of Klf2 or Klf4 specifically suppresses muscle cell fusion. Moreover, we show that the Sp1 transcription factor links ERK5 to Klf2/4, and that nephronectin, a Klf transcriptional target, is involved in muscle cell fusion. Therefore, an ERK5/Sp1/Klf module plays a key role in the fusion process during skeletal muscle differentiation.
Publication Title
ERK5 regulates muscle cell fusion through Klf transcription factors.
Sample Metadata Fields
Cell line, Time
View Samples- Homo sapiens
- 36 Downloadable Samples
- Ion Torrent Proton
Description
We analyzed publicly available mucosal gene expression data from Crohn''s disease (CD) patients pre- and post-infliximab therapy and found that a series of gene expression signature that remains abnormal even if patients achieve clinical remission. Using CMap approach to discover novel therapeutic target for untreatable mechanism of anti-TNFa mAb therapy, we have identified MEK inhibitor exhibiting negatively-correlated effects on reference signature match infliximab therapy untreatable signature. Our findings provide the rationale for testing MEK inhibitor to identify a novel mechanism of action for CD. Gene expression profile was performed to analyze the gene modulation induced by a highly selective MEK inhibitor, and to evaluate whether it normalized reference residual CD signature in vitro. Overall design: LoVo, a human colorectal cancer cell line, was treated with MEK inhibitor for 24 hours across ten dose response conditions (0.03–1,000 nM), and amplicon sequencing was performed on the Ion Torrent platform. Effects of MEK inhibitor were compared with that of DMSO-treated control. MEK inhibitor (compound 33 in Bioorg. Med. Chem. Lett. 22 (2012) 2411 2414))
Publication Title
Gene Signature-Based Approach Identified MEK1/2 as a Potential Target Associated With Relapse After Anti-TNFα Treatment for Crohn's Disease.
Sample Metadata Fields
Disease, Cell line, Treatment, Subject
View Samples- Mus musculus
- 24 Downloadable Samples
- Ion Torrent Proton
Description
We analyzed publicly available mucosal gene expression data from Crohn''s disease (CD) patients pre- and post-infliximab therapy and found that a series of gene expression signature that remains abnormal even if patients achieve clinical remission. Using CMap approach to discover novel therapeutic target for untreatable mechanism of anti-TNFa mAb therapy, we have identified MEK inhibitor exhibiting negatively-correlated effects on reference signature match infliximab therapy untreatable signature. Our findings provide the rationale for testing MEK inhibitor to identify a novel mechanism of action for CD. Using an activated T cell trasnfer colitis model, a highly selective MEK inhibitor showed therapeutic efficacy and improved the histological changes. To dissect molecular mechanisms, we performed global gene expression profile by RNA-sequencing on the Ion Torrent platform to identify broad scale changes in gene expression treated with MEK inhibitor compared to anti-TNFa mAb. Overall design: Splenocytes from BALB/c female mice were activated with Concanavalin A (4 µg/mL), and recombinant human IL-2 (10 ng/mL, R&D systems) for 3 days. CD4+ T cells were isolated by MACS separation systems, and then 2 x105 activated CD4+ T cells were intravenously injected into female SCID mice (day 0). At day 17, diarrhea score for stool consistency was graded and equally divided into 5 groups as follows: vehicle control, enteric MEK inhibitor microparticles (MPs) at 0.3 mg/kg and at 1 mg/kg, isotype antibody (Isotype mAb) and anti-TNFa antibody (Anti-TNFa mAb). Enteric MEK inhibitor MPs were orally administered once a day from day 17 to day 27. Isotype mAb and anti-TNFa mAb were intraperitoneally injected every 4 days from day 17 at 0.1 mg/mouse. Total RNA from individual cohorts were extracted from the distal part of the colon at day 28, and whole transcriptome sequencing was performed on the Ion Torrent platform. MEK inhibitor (compound 33 in Bioorg. Med. Chem. Lett. 22 (2012) 2411 2414))
Publication Title
Gene Signature-Based Approach Identified MEK1/2 as a Potential Target Associated With Relapse After Anti-TNFα Treatment for Crohn's Disease.
Sample Metadata Fields
Specimen part, Cell line, Treatment, Subject
View Samples- Mus musculus
- 31 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
It remains unclear how the ectopic expression of defined transcription factors induces dynamic changes in gene expression profiles that establish a pluripotent state during direct cell reprogramming. In the present study, we first identified a temporal gene expression program during the reprogramming process. Promoter analyses then predicted the role of two forkhead box transcription factors, Foxd1 and Foxo1, as mediators of the gene expression program. Knockdown of Foxd1 or Foxo1 reduced the number of induced pluripotent stem cells (iPSCs). The knockout of Foxd1 prevented the downstream transcription program, including the expression of reprogramming marker genes. Interestingly, the expression level of Foxd1 was also transiently increased in a small population of cells in the middle stage of reprogramming. The presence or absence of Foxd1 expression in this stage was correlated with a future cell fate as iPSCs or non-reprogrammed cells. These results suggest that Foxd1 is a mediator and indicator of the successful progression of the gene expression program in cell reprogramming.
Publication Title
Foxd1 is a mediator and indicator of the cell reprogramming process.
Sample Metadata Fields
Specimen part, Time
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
It remains unclear how the ectopic expression of defined transcription factors induces dynamic changes in gene expression profiles that establish a pluripotent state during direct cell reprogramming. In the present study, we first identified a temporal gene expression program during the reprogramming process. Promoter analyses then predicted the role of two forkhead box transcription factors, Foxd1 and Foxo1, as mediators of the gene expression program. Knockdown of Foxd1 or Foxo1 reduced the number of induced pluripotent stem cells (iPSCs). The knockout of Foxd1 prevented the downstream transcription program, including the expression of reprogramming marker genes. Interestingly, the expression level of Foxd1 was also transiently increased in a small population of cells in the middle stage of reprogramming. The presence or absence of Foxd1 expression in this stage was correlated with a future cell fate as iPSCs or non-reprogrammed cells. These results suggest that Foxd1 is a mediator and indicator of the successful progression of the gene expression program in cell reprogramming.
Publication Title
Foxd1 is a mediator and indicator of the cell reprogramming process.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 46 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Spermatogonial stem cells (SSCs) have pluripotent potential. However, frequency of pluripotent cell derivation is low and the mechanism of culture-induced reprogramming remains unknown. Here we report that epigenetic instability of germline stem (GS) cells, cultured SSCs, induces pluripotent cell derivation. GS cells undergo DNA demethylation in H19 differentially methylated region under low-density culture. When H19 demethylation was induced by Dnmt1 depletion, they converted into embryonic stem (ES)-like cells. Dnmt1 depletion downregulated Dmrt1 expression, whose depletion also induced pluripotency. Functional screening of Dmrt1 target gene revealed that Dmrt1 depletion upregulates Sox2, the key molecule responsible for generating induced pluripotent stem cells. Although Sox2 transfection upregulated Oct4 and produced pluripotent cells, this conversion was inhibited by Oct1 overexpression, suggesting that the balance of Oct proteins maintains SSC identity. These results suggest that culture-induced reprogramming is caused by unstable DNA methylation, and that Dmrt1-Sox2 cascade is critical for regulating pluripotency in SSCs.
Publication Title
Regulation of pluripotency in male germline stem cells by Dmrt1.
Sample Metadata Fields
Specimen part, Treatment
View Samples