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Rattus norvegicus
39 Downloadable Samples
Illumina HiSeq 4000
Description
Studies have reported opposing effects of high-fat diet and mechanical stimulation on lineage commitment of the bone marrow stem cells. Yet, how the bone marrow modulates its gene expression in response to the combined effects of mechanical loading and a high-fat diet has not yet been addressed. We investigated whether early-life voluntary physical activity can modulate the effects of a high-fat diet on body composition, bone phenotype and bone marrow gene expression in male Sprague Dawley rats. We show that early-life high-fat diet positively affected body weight, total fat percentage and bone mass indices. In the bone marrow, early-life high-fat diet resulted in adipocyte hypertrophy and a pro-inflammatory and pro-adipogenic gene expression profile. Crucially, the bone marrow of the rats that undertook wheel exercise while on a high-fat diet retained a memory of the early-life exercise. This memory lasted at least 60 days after the cessation of the voluntary exercise and was manifest by: 1) the bone marrow adipocyte size of the exercised rats not exhibiting hypertrophy; and 2) genes associated with mature adipocyte function being down-regulated. Our results are consistent with the marrow adipose tissue having a unique and long-lasting response to high-fat feeding in the presence or absence of exercise. Overall design: Eighty male SD rats were randomised at weaning into : chow-fed group (C-SED) or a high-fat fed group. The high-fat fed group was further divided into three sub-groups: the high-fat sedentary (HF-SED) group, the high-fat late-exercise (HF-LEX) group, and the high-fat early-exercise (HF-EEX) group. At day 120-123, the animals were culled and total RNA was extracted from the bone marrow of the femur. The RNA was sequenced using Illumina Hiseq4000 technology. Differential gene expression analysis was carried out using Tuxedo suite of bioinformatic tools.
Publication Title
A Memory of Early Life Physical Activity Is Retained in Bone Marrow of Male Rats Fed a High-Fat Diet.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 6 Downloadable Samples
Affymetrix Mouse Genome 430A 2.0 Array (mouse430a2)
Description
Here we examine the regulation of cell death by hepatic leukemia factor (HLF), which is an output regulator of circadian rhythms and is aberrantly expressed in human cancers, using an ectopic expression strategy in JB6 mouse epidermal cells and human keratinocytes. Ectopic HLF expression inhibited cell death in both JB6 cells and human keratinocytes, as induced by serum-starvation, tumor necrosis factor alpha and ionizing radiation.
Publication Title
Hepatic leukemia factor promotes resistance to cell death: implications for therapeutics and chronotherapy.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
To characterize the potential molecular pathway(s) affected by iron treatment and identify the one(s) responsible for C3 induction, we performed a whole genome microarray on untreated ARPE-19 cells and cells treated with 250 M FAC for 48h/2d.
Publication Title
Iron-induced Local Complement Component 3 (C3) Up-regulation via Non-canonical Transforming Growth Factor (TGF)-β Signaling in the Retinal Pigment Epithelium.
Sample Metadata Fields
Cell line, Treatment
View Samples- Mus musculus
- 6 Downloadable Samples
- Illumina HiSeq 1000
Description
Pulmonary fibrosis (PF) is associated with many chronic lung diseases including Systemic sclerosis (SSc), Idiopathic Pulmonary Fibrosis (IPF) and Cystic Fibrosis (CF) which are characterized by the progressive accumulation of stromal cells and formation of scar tissue. Pulmonary fibrosis is a dysregulated response to alveolar injury which causes a progressive decline in lung function and refractory to current pharmacological therapies. Airway and alveolar epithelial cells and stromal cells contribute to pulmonary fibrosis but the cell-specific pathways and gene networks that are responsible for the pathophysiology are unknown. Recent animals models generated in our lab demonstrate clinical phenotypes seen in human fibrotic disease. The mouse model of transforming growth factor-a (TGFa)-induced fibrosis include conditionally expressing TGFa in the lung epithelium under control of the CCSP promoter driving rtTA expression (CCSP/TGFa). This allow the TGFa is only expressed in airway and alveolar epithelial cells and only when mice fed doxycycline (Dox). Similar to PF in humans, TGFa mice on Dox developed a progressive and extensive adventitial, interstitial and pleural fibrosis with a decline in lung mechanics. Thus, the TGFa transgenic mouse is a powerful model to determine lung cell-specific molecular signatures involved in pulmonary fibrosis. In this study, we sought to determine changes in the transcriptome during TGFa-induced pulmonary fibrosis. Our results showed that several pro-fibrotic genes increased in the lungs of TGFa mice. This study demonstrates that WT1 network gene changes associated with fibrosis and myfibroblast accumulation and thus may serve as a critical regulator fibrotic lung disease. Overall design: mRNA profiles of CCSP/- and CCSP/TGFalpha mice treated with Dox
Publication Title
Fibrocytes Regulate Wilms Tumor 1-Positive Cell Accumulation in Severe Fibrotic Lung Disease.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 47 Downloadable Samples
- Affymetrix Mouse Genome 430A 2.0 Array (mouse430a2)
Description
Whole genome expression profiling in the presence and absence of annexin A2 [shRNA] identified fundamentally altered transcriptional programming that changes the radioresponsive transcriptome.
Publication Title
Annexin A2 modulates radiation-sensitive transcriptional programming and cell fate.
Sample Metadata Fields
Treatment, Time
View Samples- Homo sapiens
- 11 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Induced pluripotent stem cells (iPSCs) are usually clonally derived. The selection of fully reprogrammed cells generally involves picking of individual colonies with morphology similar to embryonic stem cells (ESCs). However, successfully reprogrammed cells are highly proliferative and escape from cellular senescence - it is therefore conceivable that they outgrow non-pluripotent and partially reprogrammed cells during culture expansion without the need of clonal selection. In this study, we have reprogrammed human dermal fibroblasts (HDFs) with episomal plasmid vectors. Colony frequency and size was higher when using murine embryonic fibroblasts (MEFs) as stromal support instead of HDFs or human mesenchymal stromal cells (MSCs). We have then compared iPSCs which were either clonally derived by manual selection of a single colony, or derived from bulk-cultures of all initial colonies. After few passages their morphology, expression of pluripotency markers, and gene expression profiles did not reveal any significant differences. Furthermore, clonally-derived and bulk-cultured iPSCs had indistinguishable in vitro differentiation potential towards the three germ layers. Therefore, manual selection of individual colonies does not appear to be necessary for the generation of iPSCs this is of relevance for standardization and automation of cell culture procedures
Publication Title
To clone or not to clone? Induced pluripotent stem cells can be generated in bulk culture.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 11 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Human induced pluripotent stem cells (iPS cells) resemble embryonic stem cells and can differentiate into cell derivatives of all three germ layers. However, frequently the differentiation efficiency of iPS cells into some lineages is rather poor. Here, we found that fusion of iPS cells with human hematopoietic stem cells (HSC) enhances iPS cell differentiation. Such iPS hybrids showed a prominent differentiation bias towards hematopoietic lineages but also towards other mesendodermal lineages. Additionally, during differentiation of iPS hybrids expression of early mesendodermal markers - Brachyury (T), MIX1 Homeobox-Like Protein 1 (MIXL1) and Goosecoid (GSC) - appeared with faster kinetics than in parental iPS cells. Following iPS hybrid differentiation there was a prominent induction of NODAL and inhibition of NODAL signaling blunted mesendodermal differentiation. This indicates that NODAL signaling is critically involved in mesendodermal bias of iPS hybrid differentiation. In summary, we demonstrate that iPS cell fusion with HSC prominently enhances iPS differentiation.
Publication Title
Cell fusion enhances mesendodermal differentiation of human induced pluripotent stem cells.
Sample Metadata Fields
Specimen part
View Samples
GSE37773- Mus musculus
- 16 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Microarray analysis of murine retinal light damage reveals changes in iron regulatory, complement, and antioxidant genes in the neurosensory retina and isolated retinal pigment epithelium (RPE). With the advent of microarrays representing most of the transcriptome and techniques to obtain RNA from the isolated RPE monolayer, we have probed the response of the RPE and neurosensory retina (NSR) to light damage.
Publication Title
Microarray analysis of murine retinal light damage reveals changes in iron regulatory, complement, and antioxidant genes in the neurosensory retina and isolated RPE.
Sample Metadata Fields
Sex, Specimen part, Treatment
View Samples- Homo sapiens
- 6 Downloadable Samples
- IlluminaHiSeq2000
Description
Total RNA extracted from prostate cancer LNCaP cells transfected with siRNA against CTCF(siCTCF), or negative control siRNA (si-)were processed, and sequenced by two different companies using Illumina Hi-seq 2000 platform to generate RNA sequencing with two output sequences: paired-end 50bp and 101bp in read length. Nearly 100 million and 50 million raw reads were yielded from each sample respectively. We used FastQC to confirm the quality of raw fastq sequencing data, and SOAPfuse software to detect fusion transcripts. Overall design: Discovering fusion genes from siCTCF and si- in LNCaP cells.
Publication Title
Discovery of CTCF-sensitive Cis-spliced fusion RNAs between adjacent genes in human prostate cells.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 2 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
In previous studies, it was observed that survivors who received stem cell transplantation and whole body irradiation showed development of NAFLD as a chronic effect.
Publication Title
Decreased Hepatic Lactotransferrin Induces Hepatic Steatosis in Chronic Non-Alcoholic Fatty Liver Disease Model.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples