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GSE81477
Arabidopsis thaliana
20 Downloadable Samples
Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Plants possess a cold acclimation system to acquire freezing tolerance through pre-exposure to non-freezing low temperatures. The transcriptional cascade of C-repeat binding factors (CBFs)/dehydration response element-binding factors (DREBs) is considered a major transcriptional regulatory pathway during cold acclimation. However, little is known regarding the functional significance of mRNA stability regulation in the response of gene expression to cold stress. The actual level of individual mRNAs is determined by a balance between mRNA synthesis and degradation. Therefore, it is important to assess the regulatory steps to increase our understanding of gene regulation. Here, we analyzed temporal changes in mRNA amounts and half-lives in response to cold stress in Arabidopsis cell cultures based on genome-wide analysis. In this mRNA decay array method, mRNA half-life measurements and microarray analyses were combined. In addition, temporal changes in the integrated value of transcription rates were estimated from the above two parameters using a mathematical approach. Our results showed that several cold-responsive genes, including Cold-regulated 15a, were relatively destabilized, whereas the mRNA amounts were increased during cold treatment by accelerating the transcription rate to overcome the destabilization. Considering the kinetics of mRNA synthesis and degradation, this apparently contradictory result supports that mRNA destabilization is advantageous for the swift increase in CBF-responsive genes in response to cold stress.
Publication Title
Co-ordinated Regulations of mRNA Synthesis and Decay during Cold Acclimation in Arabidopsis Cells.
Sample Metadata Fields
Cell line
View Samples- Mus musculus
- 3 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
We used microarray analysis to identify specific molecular mechanisms controlling Th17 cell differentiation in HFD mice
Publication Title
Obesity Drives Th17 Cell Differentiation by Inducing the Lipid Metabolic Kinase, ACC1.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Werner syndrome (WS) is a premature aging disorder characterized by chromosomal instability and cancer predisposition. Mutations in WRN are responsible for the disease and cause telomere dysfunction, resulting in accelerated aging. In the present study, we describe the effects of long-term culture on WS iPSCs, which acquired and maintained infinite proliferative potential for self-renewal over 2 years. After long-term cultures, WS iPSCs exhibited stable undifferentiated states and differentiation capacity, and premature upregulation of senescence-associated genes in WS cells was completely suppressed in WS iPSCs despite WRN deficiency.
Publication Title
Reprogramming suppresses premature senescence phenotypes of Werner syndrome cells and maintains chromosomal stability over long-term culture.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 14 Downloadable Samples
Illumina HiSeq 2500
Description
The goal of this study is to evaluate immune profile in anti PD-1 antibody, Nivolumab, bound CD8 T cells vs Nivolumab unbound CD8 T cells. Overall design: We performed sorting for IgG4 positive and negative CD8 T cells from five individual patients at the time after one dose treatment and compared transcriptome profile between them.
Publication Title
Clinical implications of monitoring nivolumab immunokinetics in non-small cell lung cancer patients.
Sample Metadata Fields
Specimen part, Subject
View Samples- Mus musculus
- 10 Downloadable Samples
- Illumina HiSeq 2500
Description
Purpose: A super carbonate apatite (sCA) nanoparticle is an in vivo pH-sensitive delivery system for siRNA and microRNA. These carriers accumulate specifically in tumors, yet they cause no serious adverse events in mice and monkeys. Systemic administration of sCA incorporating siRNA and microRNA has demonstrated superb tumor suppressive effects in vivo. We recently observed that sCA could deliver abundant nucleic acids to the inflammatory sites in rheumatoid arthritis mouse model. Based on the success, we tried to examine whether sCA could deliver sufficient amounts of miRNA into the colorectum inflamed by dextran sodium sulfate (DSS) treatment. Methods: We performed a RNA sequencing analysis of the DSS-treated colon walls. DSS was administered for 4 days and sCA-miR-29a, sCA-miR-29b, sCA-NC-miR was injected on days 1, 2, 3. On day 4, colorectum was removed and the mRNA samples were subject to the RNA sequencing analysis. Results: RNA sequencing of the rectum samples showed a number of enhanced or reduced gene expression in DSS treated NC-miR group on day 4 compared to normal mice. Such tendency of upregulation or downregulation was also noted in DSS-treated NC-miR group on day 2. Comparison of DSS treated samples on day 4 among NC-miR, miR-29a and miR-29b groups, revealed that several gene expression related to the interferon pathway was reversed by miR-29a or miR-29b towards the normal controls. These include Stat1, Stat2, IRF7, IRF9, and IFIT1. Conclusions: Many molecules in the interferon signaling pathway were activated in DSS-induced colitis on day 4 and Stat1, Stat2, IRF7, IRF9, and IFIT1 were key molecules in the interferon related pathways. These findings suggest that sCA-miR-29a or sCA-miR-29b may inhibit type 1 IFN and type 2 IFN pathways which are otherwise activated by DSS treatment. Overall design: ?iR-29a and miR-29b, NC-miR loaded in sCA were systemically administered from the tail vein on the 1st, 2nd and 3rd days after the 2% DSS administration was started, and the rectum of the mouse was collected on the 4th day. RNA was extracted from the harvested colorectum. For these four conditions (n = 2) and normal mice (n = 2), ten samples were subjected to RNA sequencing.
Publication Title
The Supercarbonate Apatite-MicroRNA Complex Inhibits Dextran Sodium Sulfate-Induced Colitis.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Rattus norvegicus
- 12 Downloadable Samples
- Affymetrix Rat Gene 1.0 ST Array (ragene10st)
Description
Endothelial cells (Ecs) lining the blood vessels have been known to have a variety of functions and play a central role in homeostasis of the circulatory system.
Publication Title
Transcription profiles of endothelial cells in the rat ductus arteriosus during a perinatal period.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
The overall goal of this project is to investigate the role of TGF-beta signaling in epithelial cells as it pertains to the orientation of muscle fibers in the soft palate during embryogenesis. Here, we first conducted gene expression profiling of the anterior and posterior portions of the palate from wild-type mice. In addition, we also conducted gene expression profiling of the posterior palate in mutant mice with an epithelium-specific conditional inactivation of the Tgfbr2 gene. The latter mice provide a model of submucosal cleft palate, which is a congenital birth defect commonly observed in many syndromic conditions.
Publication Title
TGFβ regulates epithelial-mesenchymal interactions through WNT signaling activity to control muscle development in the soft palate.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Fibroblasts isolated from human colon submucosal and subperitoneal layer were stimulated by colon cancer cell line (DLD-1) cultured medium. Peritoneal invasion in colon cancer is an important prognostic factor, and the fibrosis with -SMA was a significant pathological feature of the cancer microenvironment formed by peritoneal invasion (CMPI).
Publication Title
Human subperitoneal fibroblast and cancer cell interaction creates microenvironment that enhances tumor progression and metastasis.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)
Description
To investigate the importance of STAT3 in the establishment of ES cells we have in a first step derived stable pluripotent embryonic stem cells from transgenic FVB mice expressing a conditional tamoxifen dependent STAT3-MER fusion protein. In a second step, STAT3-MER overexpressing cells were used to identify STAT3 pathway-related genes by expression profiling in order to identify new key-players involved in maintenance of pluripotency in ES cells.
Publication Title
Expression profiling in transgenic FVB/N embryonic stem cells overexpressing STAT3.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Appropriate bone mass is maintained by the actions of the main cells in the bone, osteoclasts and osteoblasts. The Stat3 transcription factor is known to have an effect on maintaining bone mass, but it is not known whether its key actions are in osteoblasts, osteoclasts, or both. Preliminary data indicated that Stat3 plays a role in osteoclast differentiation, but the mechanisms of this role are not yet understood.
Publication Title
The loss of STAT3 in mature osteoclasts has detrimental effects on bone structure.
Sample Metadata Fields
Cell line
View Samples