This SuperSeries is composed of the SubSeries listed below.
Norrin, frizzled-4, and Lrp5 signaling in endothelial cells controls a genetic program for retinal vascularization.
Sex, Specimen part
View SamplesTranscriptional profiles of the cerebellar endothelial cells from P16 Fz4-/- animals were compared to their wild type littermate controls. The goal is to characterize the long-term effect on the transcriptome of loss of Fz4 signaling in cerebellar endothelial cells.
Norrin, frizzled-4, and Lrp5 signaling in endothelial cells controls a genetic program for retinal vascularization.
Sex, Specimen part
View SamplesHistone variant H2A.Z occupies the promoters of active and poised, bivalent genes in ESCs to regulate developmental programs, yet how it contributes to these contrasting states is poorly understood. Here, we investigate the function of H2A.Z.1 mono-ubiquitylation (H2A.Z.1ub) by mutation of the PRC1 target residues (H2A.Z.1K3R3). We show that H2A.Z.1K3R3 is properly incorporated at target promoters in murine ESCs (mESCs), however, loss of mono-ubiquitylation leads to de-repression of bivalent genes, loss of Polycomb binding, and to faulty lineage commitment. Using quantitative proteomics, we find that tandem bromodomain proteins, including the BET family member Brd2, are enriched in H2A.Z.1 chromatin. We further show that Brd2 is gained at de-repressed promoters in H2A.Z.1K3R3 mESCs whereas Brd2 inhibition restores gene silencing at these sites. Together, our study reveals an antagonistic relationship between H2A.Z.1ub and Brd2 to regulate the transcriptional balance at bivalent genes to enable proper execution of developmental programs. Overall design: RNA-Seq analysis on mouse embryonic stem cells harboring H2A.Z or H2A.Z.K3R3 (3 C-terminal lysines mutated to arginines) tagged with YFP, in the presence of a knockdown hairpin targeting the endogenous H2A.Z transcript.
H2A.Z.1 Monoubiquitylation Antagonizes BRD2 to Maintain Poised Chromatin in ESCs.
No sample metadata fields
View SamplesOur earlier study demonstrated that when CFSE-labeled LCMV-or Pichinde virus-immune spleen leukocytes were transferred into T cell-deficient hosts, the bona fide virus-specific memory cells underwent relatively limited cell division and were substantially diluted in frequency by other more extensively proliferating cells originating from that donor cell population. We questioned how the slowly dividing population, which contained bona fide memory cells, differed from the rapidly dividing cells, which contained memory-like cells. As a preliminary screen we performed a comparative genome-wide microarray analysis of genes expressed on sorted rapidly proliferating (CFSE-low) and slowly proliferating (CFSE-high) CD8 cell populations
Programmed death-1 (PD-1) defines a transient and dysfunctional oligoclonal T cell population in acute homeostatic proliferation.
Age, Specimen part
View SamplesWe compared the expression among three lines, Col, C24, and their hybrids at 10 days after sowing (DAS).
Heterosis of Arabidopsis hybrids between C24 and Col is associated with increased photosynthesis capacity.
Specimen part
View SamplesUse existing public data, cell lines and patient tumors with a personalized medicine approach to predict effective therapies for treatment of Neurofibroma tumors.
Molecular-guided therapy predictions reveal drug resistance phenotypes and treatment alternatives in malignant peripheral nerve sheath tumors.
Specimen part
View SamplesWe generated gene expression profiles of 5 time points in murine lung development (E11.5, E13.5, E14.5, E16.5 and P5). The goal of this study was to establish a reference data set for exploration of large-scale similarities between transcriptomes in development and cancer.
Analysis of gene expression in a developmental context emphasizes distinct biological leitmotifs in human cancers.
No sample metadata fields
View SamplesWe investigated the expression profiles in the CD4+, CD8, and CD14+ peripheral blood cells (PBLs) of the stage IV melanoma patients and the healthy donors. Overall design: Examination of long noncoding RNA in the CD4+, CD8, and CD14+ peripheral blood cells (PBLs) of the stage IV melanoma patients and the healthy donors.
Integrative Genome-Wide Analysis of Long Noncoding RNAs in Diverse Immune Cell Types of Melanoma Patients.
Specimen part, Subject
View SamplesDuring T cell development, multipotent progenitors relinquish competence for other fates and commit to the T cell lineage by turning on Bcl11b, which encodes a transcription factor. To clarify lineage commitment mechanisms, we followed developing T cells at the single-cell level using Bcl11b knock-in fluorescent reporter mice. Notch signaling and Notch activated transcription factors collaborate to activate Bcl11b expression irrespectively of Notch-dependent proliferation. These inputs work via three distinct, asynchronous mechanisms: an early locus ‘poising’ function dependent on TCF-1 and GATA-3, a stochastic-permissivity function dependent on Notch signaling, and a separate amplitude-control function dependent on Runx1, a factor already present in multipotent progenitors. Despite their necessity for Bcl11b activation, these inputs act in a stage specific manner, providing a multitiered mechanism for developmental gene regulation. Overall design: Two sets of samples were generated from DN T-cell sub-populations derived from culture of bone marrow progenitors from mice containing a knock-in Bcl11b-YFP reporter
Asynchronous combinatorial action of four regulatory factors activates Bcl11b for T cell commitment.
Specimen part, Subject
View SamplesIn order to define the genes responsible for the growth and survival of a human castration-resistant prostate cancer cell line, a short term (doxycycline inducible) knockdown system was developed and utilized. Three independent 22Rv1 cell isolates were derived for each of the following doxycycline-inducible shRNAs (shGFP, shAR3, and shVav3) (AR3 = AR-V7). The cells were grown in androgen depleted conditions, plus or minus doxycycline, for three days. RNA from the 18 samples was then sent to the University of Miami Genetics Core for RNA Integrity Number (RIN) evaluation and microarray analysis. Genes differentially regulated by AR-V7 knock-down or VAV3 knock-down were explored as downstream targets of AR-V7 or VAV3, respectively.
Identification of an oncogenic network with prognostic and therapeutic value in prostate cancer.
Specimen part, Cell line
View Samples