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GSE66483
Mus musculus
18 Downloadable Samples
Affymetrix Mouse Gene 2.1 ST Array (mogene21st)
Description
Myogenic differentiation relies on Pax7 function. We used embryonic stem cells lacking functional Pax7 to follow its role in derivation of skeletal myoblasts.
Publication Title
Myogenic Differentiation of Mouse Embryonic Stem Cells That Lack a Functional Pax7 Gene.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 2.1 ST Array (mogene21st)
Description
Myogenic differentiation relies on Pax7 function. We used mouse embryonic fibroblasts lacking functional Pax7 to follow its role in terminally differentiated cells.
Publication Title
Cell cycle regulation of embryonic stem cells and mouse embryonic fibroblasts lacking functional Pax7.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 24 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Rosiglitazone (Rosi), a member of the thiazolidinedione class of drugs used to treat type 2 diabetes, activates the adipocyte-specific transcription factor peroxisome proliferator-activated receptor gamma (PPARg). This activation causes bone loss in animals and humans, at least in part due to suppression of osteoblast differentiation from marrow mesenchymal stem cells (MSC). In order to identify mechanisms by which PPARg2 suppresses osteoblastogenesis and promotes adipogenesis in MSC, we have analyzed the PPARg2 transcriptome in response to Rosi. A total of 4,252 transcriptional changes resulted when Rosi (1 uM) was applied to the U-33 marrow stromal cell line, stably transfected with PPARg2 (U-33/g2), as compared to non-induced U-33/g2 cells. Differences between U-33/g2 and U-33 cells stably transfected with empty vector (U-33/c) comprised 7,928 transcriptional changes, independent of Rosi. Cell type-, time- and treatment-specific gene clustering uncovered distinct patterns of PPARg2 transcriptional control of MSC lineage commitment. The earliest changes accompanying Rosi activation of PPARg2 included adjustments in morphogenesis, Wnt signaling, and immune responses, as well as sustained induction of lipid metabolism. Expression signatures influenced by longer exposure to Rosi provided evidence for distinct mechanisms governing the repression of osteogenesis and stimulation of adipogenesis. Our results suggest interactions that could lead to the identification of a master regulatory scheme controlling osteoblast differentiation.
Publication Title
PPARgamma2 nuclear receptor controls multiple regulatory pathways of osteoblast differentiation from marrow mesenchymal stem cells.
Sample Metadata Fields
Compound, Time
View Samples- Homo sapiens
- 53 Downloadable Samples
IlluminaHiSeq2000
Description
The intention was to detect genes that are determining trastuzumab efficiency in HER2-positive breast cancer cell lines with different resistance phenotypes. While BT474 should be sensitive to the drug treatment, HCC1954 is expected to be resistant due to a PI3K mutation. The cell line BTR50 has been derived from BT474 and was cultured to be resistant as well. Based on RNA-Seq data, we performed differential expression analyses on these breast cancer cell lines with and without trastuzumab treatment. In detail, five separate tests were performed, namely resistant cells vs. wild type, i.e. HCC1954 and BTR50 vs. BT474, respectively, and untreated vs. drug treated cells. The significant genes of the first two tests should contribute to resistance. The significant genes of the test BT474 vs. its drug treated version should contribute to the trastuzumab effect. To exclude false positives from the combined gene set (#64), we removed ten genes that were also significant in the test BTR50 vs. its drug treated version. This way we ended up with 54 genes that are very likely to determine trastuzumab efficiency in HER2-positive breast cancer cell lines. Overall design: mRNA profiles of human breast cancer cell lines were generated by deep sequencing using Illumina HiSeq 2000. The cell lines BT474 and HCC1954 were analyzed with and without trastuzumab treatment. HCC1954 is known to be trastuzumab resistant. Additionally, the cell line BTR50 was generated as resistant version of BT474, and was analyzed with and without trastuzumab as well.
Publication Title
mRNA profiling reveals determinants of trastuzumab efficiency in HER2-positive breast cancer.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 16 Downloadable Samples
- Illumina HiSeq 4000
Description
To gain insights into the molecular pathogenesis of DCM caused by LMNA mutation, a doxycycline-inducible (Dox-Off) gene expression system was used to express either a wild type (WT) or a mutant LMNA containing the pathogenic variant p.Asp300Asn (LMNAD300N) in cardiac myocytes. The LMNAD300N is associated with DCM in patients with atypical progeroid/Werner syndrome and non-syndromic cardiac progeria. Expression of the mutant LMNAD300N protein in cardiac myocytes led to severe fibrosis, apoptosis, cardiac dysfunction, and premature death. RNA-seq was performed (prior to onset of cardiac dysfunction) to identify gene signatures and transcriptional regulators responsible for this phenotype. Mechanistic studies identified activation of E2F/TP53/DDR, as a major mechanism responsible for the pathogenesis of DCM caused by the LMNAD300N mutation. Overall design: RNA-seq analysis from 2-week old WT and mice expressing mutant LMNA (LMNAD300N)
Publication Title
DNA Damage Response/TP53 Pathway Is Activated and Contributes to the Pathogenesis of Dilated Cardiomyopathy Associated With LMNA (Lamin A/C) Mutations.
Sample Metadata Fields
Cell line, Subject
View Samples- Homo sapiens
- 9 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Access to an unlimited number of human pancreatic beta cells represents a major challenge in the field of diabetes to better dissect human beta cell functions and to make significant progress in drug discovery and cell replacement therapies. We previously reported the generation of the EndoC-bH1 human beta cell line that was generated by targeted oncogenesis in human fetal pancreases followed by in vivo cell differentiation in mice. Such cell line displayed many functional properties of adult beta cells. Here we devised a novel strategy to generate conditionally immortalized human beta cell lines based on CRE-mediated excision of immortalizing transgenes. The resulting EndoC-bH2 cell line can be massively amplified in vitro. Transgenes are next efficiently excised upon CRE expression leading to cell proliferation arrest and strong enhancement of beta cell specific features such as insulin expression, content and secretion. Excised EndoC-bH2 cells are close to authentic human beta cells and represent a unique tool to further study beta cell function and to understand why adult human beta cells are refractory to proliferation and how to achieve drug-dependent mobilization towards beta cell expansion.
Publication Title
Development of a conditionally immortalized human pancreatic β cell line.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 7 Downloadable Samples
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
Computational identification of gene expression pathways in cysts alongside tubular organoids
Publication Title
Organoid cystogenesis reveals a critical role of microenvironment in human polycystic kidney disease.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 24 Downloadable Samples
- IlluminaHiSeq2000
Description
The biphasic epithelioid (E-) and sarcomatoid(S-) components of sarcomatoid RCC and epithelioid (E-) and rhabdoid (R-) components of rhabdoid RCC shared a similar transcriptomic signature, despite morphologic differences; by contrast, the transcriptome of sarcomatoid and rhabdoid RCC was sharply distinct from non-sarcomatoid RCC. Overall design: Total RNA was processed for RNA-seq from the following patient samples: 7 sarcomatoid RCC (E- and S- pairs), 4 rhabdoid RCC (E- and R- pairs) and 15 non-sarcomatoid RCC.
Publication Title
Biphasic components of sarcomatoid clear cell renal cell carcinomas are molecularly similar to each other, but distinct from, non-sarcomatoid renal carcinomas.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 172 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip, Illumina HumanHT-12 V3.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Identification of distinct basal and luminal subtypes of muscle-invasive bladder cancer with different sensitivities to frontline chemotherapy.
Sample Metadata Fields
Sex, Specimen part, Disease, Cell line, Treatment, Race
View Samples- Homo sapiens
- 142 Downloadable Samples
Illumina HumanHT-12 V3.0 expression beadchip
Description
Identification of bladder cancer subsets
Publication Title
Identification of distinct basal and luminal subtypes of muscle-invasive bladder cancer with different sensitivities to frontline chemotherapy.
Sample Metadata Fields
Sex
View Samples