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SRP043632
Mus musculus
4 Downloadable Samples
Illumina Genome Analyzer IIx
Description
Recently, it was described that mammalian cells are able to eliminate those with relative lower Myc levels in the epiblast through cell competition. We have described that cardiomyocytes during heart development are also able to complete eliminating cells with lower Myc levels. We have also shown that adult cardiomyocytes respond in the same way over long periods of time when cell competition is induced by overexpressing Myc in a mosaic fashion. We therefore have developed an RNASeq assay to further understand the mechanism of elimination of WT cells and the effect of mild Myc overexpression in cardiomyocytes. Overall design: Myc overexpression in a mosaic fashion in adult cardiomyocytes, 2 hearts were analyzed and two wild type littermates were used as controls
Publication Title
Cell competition promotes phenotypically silent cardiomyocyte replacement in the mammalian heart.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 9 Downloadable Samples
- Illumina HiSeq 2500
Description
The goal is to examine the transcriptome of ESCs with different Myc levels Overall design: In order to analyse the transcriptome, mESC population was sorted in 3 groups depending on Myc levels
Publication Title
Pluripotency Surveillance by Myc-Driven Competitive Elimination of Differentiating Cells.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Mus musculus
- 9 Downloadable Samples
- Illumina Genome Analyzer II
Description
The goal of this study is to analyse the transcriptome of WT and Myc-overexpressing ESCs in iMOS T1-Myc mosaic cultures. Overall design: Homozygous iMOS T1-Myc ESC cultures (Claveria et al., 2013) were treated with 20µM 4-hydroxytamoxifen for 24 hours to generate a mosaic of cell populations containing two, one or no extra Myc and EYFP copies. 24 hours after tamoxifen removal, cells were sorted according to their EYFP expression levels and populations with two extra Myc and EYFP copies and with no extra Myc and EYFP copies were collected. Uninduced homozygous iMOS T1-Myc ESC cultures were also sorted and collected as a control. Three biological replicas were included for each condition.
Publication Title
Pluripotency Surveillance by Myc-Driven Competitive Elimination of Differentiating Cells.
Sample Metadata Fields
Subject
View Samples- Mus musculus
- 10 Downloadable Samples
- NextSeq 500
Description
Microglia constitutes a diverse population of cells that present a broad spectrum of responses when they become activated. Here, microglial status was studied under steady-state conditions from different brain regions involved in neurodegenerative diseases. Under basal conditions, midbrain microglia showed an immune-alert state not observed in striatum. Unique subpopulations of microglia expressing TLR4 and MHC-II with antigen presenting properties, and a higher proportion of infiltrating CD4+ T cells were identified in the midbrain. These results highlight that the inflammatory tone is context-dependent and reveal the unique properties of the midbrain related to the interaction with the immune system. Overall design: Analysis of two cohorts of control animals
Publication Title
Midbrain microglia mediate a specific immunosuppressive response under inflammatory conditions.
Sample Metadata Fields
Age, Cell line, Subject
View Samples- Gossypium barbadense, Gossypium hirsutum
- 2 Downloadable Samples
Affymetrix Cotton Genome Array (cotton)
Description
affy_cotton_2011_12 - affy_cotton_2011_12 - In this study we characterized the fiber transcriptomes of the two species, Gossypium hirsutum and Gossypium barbadense that were parental genotypes of a RIL mapping population used previously for phenotypic QTL and expression QTL mapping., We used 454 deep pyrosequencing to characterize cDNAs from developing fibers at two key developmental time-points; 10 and 22 days post anthesis. A unigene set was assembled and annotated, and differential digital gene expression was assessed from the different time-point and genotype representations of the reads within assembled contigs. As a complementary approach, we conducted microarray-based hybridization profiling using the cotton Affymetrix gene chip and labeled cDNAs from fibers at 11 dpa and for the same two genotypes and compared differentially expressed genes identified by the two platforms. The 454 unigenes were also mined for the presence of microsatellite repeats and SNPs that will be useful markers for mapping and marker-assisted selection in cotton improvement.-Total RNA was extracted from 11 dpa-old fibers from the two genotypes, Guazuncho 2 (Gossypium hirsutum) and VH8-4602 (G. barbadense), and included two replicates of each. RNA was checked for quality and quantity using an Agilent Bioanalyser 2100 (Agilent Technologies, Santa Clara, CA, USA, http://www.home.agilent.com) following the manufacturers recommendations. The RNA was sent to the Australian Genome Research Facility Ltd. (http://www.agrf.org.au, Melbourne, Victoria, Australia) for labeling and hybridization to the Affymetrix Genechip Cotton Genome Array (21,854 genes) (Affymetrix, http://www.affymetrix.com/). -
Publication Title
Deep sequencing reveals differences in the transcriptional landscapes of fibers from two cultivated species of cotton.
Sample Metadata Fields
Age, Specimen part
View Samples- Homo sapiens
- 36 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Lymphoid committed CD34+lin-CD10+CD24- progenitors undergo a rebound at month 3 after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the absence of acute graft-versus-host disease (aGVHD). Here, we analyzed transcriptional programs of cell-sorted circulating lymphoid committed progenitors and CD34+Lin-CD10- non lymphoid progenitors in 11 allo-HSCT patients having (n=5) or not developed (n=6) grade 2 or 3 aGVHD and in 7 age-matched healthy donors. Major deregulated pathways included protein synthesis, energy production, cell cycle regulation and cytoskeleton organization. Notably, genes from protein biogenesis, translation machinery and cell cycle (CDK6) were over-expressed in progenitors from patients in the absence of aGVHD compared with healthy donors and patients affected by aGVHD. Expression of many genes from the mitochondrial oxidative phosphorylation metabolic pathway leading to ATP production were more specifically increased in lymphoid committed progenitors in absence of aGVHD. This was also the case for genes involved in cell mobilization such as those regulating Rho GTPases activity. In all, we show that circulating lymphoid committed progenitors undergo profound changes in metabolism favoring cell proliferation, energy production and cell mobilization after allo-HSCT in humans. These mechanisms are abolished in case of aGVHD or its treatment, indicating a persistent cell-intrinsic defect after exit from bone marrow.
Publication Title
Alterations of circulating lymphoid committed progenitor cellular metabolism after allogeneic stem cell transplantation in humans.
Sample Metadata Fields
Disease, Disease stage, Subject
View Samples- Mus musculus
- 14 Downloadable Samples
- Illumina HiSeq 2500
Description
Pluripotent cell identity comprises a spectrum of cell states including naive and primed states, which are typified by mouse embryonic stem cells (ESCs) and epiblast-derived stem cells (EpiSCs), respectively. Here we define a pluripotent cell fate (PCF) gene signature based on RNA-seq analysis associated with naive and primed pluripotency acquisition, and identify Zfp281 as a key transcriptional regulator for primed pluripotency and also as a barrier to achieve the naive pluripotency of both mouse and human ESCs. Overall design: RNA sequencing analysis was performed in WT and Zfp281 null mouse embryonic stem cells under different pluripotent culture conditions. RNA-seq Experiments were carry out in two biological replciates. Genome binding/occupancy profiling of Zfp281 was performed in mouse embryonic stem cells by ChIP sequencing.
Publication Title
Zfp281 Coordinates Opposing Functions of Tet1 and Tet2 in Pluripotent States.
Sample Metadata Fields
Cell line, Subject
View Samples- Mus musculus
- 28 Downloadable Samples
- Illumina HiSeq 2000
Description
The hair follicle (HF) is a complex miniorgan that serves as an ideal model system to study stem cell (SC) interactions with the niche during growth and regeneration. Dermal papilla (DP) cells are required for activating SCs during the adult hair cycle, but the signal exchange between niche and SC precursors/transit amplifying progenitor cells (TACs) that regulates HF morphogenetic growth is largely unknown. Here we use six transgenic reporters to isolate 14 major skin and HF cell populations. With next-generation RNA sequencing we characterize their transcriptomes and define unique molecular signatures. SC precursors, TACs and the DP niche express a plethora of known and novel ligands and receptors. Signaling interaction network analysis reveals a birds-eye view of pathways implicated in epithelial-mesenchymal interactions. Using a systematic tissue-wide approach this work provides a comprehensive platform, linked to an interactive online database, to identify and further explore the SC/TAC/niche crosstalk regulating HF growth. Overall design: FACS was used to isolate specific cell types from P5 mouse back skin
Publication Title
Signaling Networks among Stem Cell Precursors, Transit-Amplifying Progenitors, and their Niche in Developing Hair Follicles.
Sample Metadata Fields
Specimen part, Subject
View Samples- Mus musculus
- 16 Downloadable Samples
- Illumina HiSeq 2000
Description
We co-isolated hair follicle placode and dermal condensate cells along with other specific cell types from E14.5 embryonic mouse skin. With next-generation RNA-sequencing we defined gene expression patterns in the context of the entire embryonic skin. Overall design: FACS was used to isolate specific cell types from E14.5 embryonic mouse skin.
Publication Title
An Integrated Transcriptome Atlas of Embryonic Hair Follicle Progenitors, Their Niche, and the Developing Skin.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Using Tbx18Cre to target embryonic DP precursors, we ablate Sox2 early and efficiently, resulting in diminished hair shaft outgrowth. Transcriptional profiling of Sox2 null DPs reveals increased Bmp6 and decreased Bmp inhibitor Sostdc1, a direct Sox2 transcriptional target.
Publication Title
Sox2 in the dermal papilla niche controls hair growth by fine-tuning BMP signaling in differentiating hair shaft progenitors.
Sample Metadata Fields
Specimen part
View Samples