This SuperSeries is composed of the SubSeries listed below.
Role of Tet1/3 Genes and Chromatin Remodeling Genes in Cerebellar Circuit Formation.
Specimen part
View SamplesTranscriptome analysis of mRNA samples purified from developing cerebellar granule cells and ES cell-derived granule cells using translating ribosome affinity purification (TRAP) method.
Role of Tet1/3 Genes and Chromatin Remodeling Genes in Cerebellar Circuit Formation.
Specimen part
View SamplesWe performed genome-wide expression profiling of cells infected with control or RPS14 shRNAs.
Identification of RPS14 as a 5q- syndrome gene by RNA interference screen.
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View SamplesAtrial fibrillation (AF) is a major risk factor for cardioembolic stroke. Anticoagulant drugs are effective in preventing AF-related stroke. However, the high frequency of anticoagulant-associated major bleeding is a major concern particularly when antiplatelet treatment is simultaneously administered. Here, microarray analysis in peripheral blood cells in eight patients with AF and stroke and eight AF subjects without stroke identified a stroke related gene expression pattern. HSPA1B, which encodes for heat-shock protein 70 kDa (Hsp70), was the most differentially expressed gene. This gene was downregulated in stroke subjects, a finding confirmed further in an independent AF cohort of 200 individuals. Hsp70 knock-out (KO) mice subjected to different thrombotic challenges developed thrombosis significantly earlier than their wild-type (WT) counterparts.
Hsp70 protects from stroke in atrial fibrillation patients by preventing thrombosis without increased bleeding risk.
Specimen part
View SamplesProstate tumors are among the most heterogeneous of cancers, both histologically and clinically. Microarray expression analysis was used to determine whether global biological differences underlie common pathological features of prostate cancer and to identify genes that might anticipate the clinical behavior of this disease. While no expression correlates of age, serum prostate specific antigen (PSA), and measures of local invasion were found, a set of genes was identified that strongly correlated with the state of tumor differentiation as measured by Gleason score. Moreover, a model using gene expression data alone accurately predicted patient outcome following prostatectomy. These results support the notion that the clinical behavior of prostate cancer is linked to underlying gene expression differences that are detectable at the time of diagnosis.
Gene expression correlates of clinical prostate cancer behavior.
Specimen part
View SamplesMedulloblastoma is the most frequent malignant pediatric brain tumor and is divided into at least four subgroups known as Wnt, SHH, Group 3 and Group 4. Here we characterized gene regulation mechanisms in the most aggressive subtype, Group 3 tumors, through genome-wide chromatin and expression profiling. Our results show that most active distal sites in these tumors are occupied by the transcription factor OTX2. Highly active OTX2 bound enhancers are often arranged as clusters of adjacent peaks and are also bound by the transcription factor NEUROD1. These sites are responsive to OTX2 and NEUROD1 knockdown and could also be generated de novo upon ectopic OTX2 expression in primary cells, showing that OTX2 cooperates with NEUROD1 and plays a major role in maintaining and possibly establishing regulatory elements as a pioneer factor. Among OTX2 target genes we identified the kinase NEK2, whose knockdown and pharmacological inhibition decreased cell viability. Our studies thus show that OTX2 controls the regulatory landscape of Group 3 medulloblastoma through cooperative activity at enhancer elements and contributes to the expression of critical target genes. Overall design: Primary Group 3 Medulloblastomas tumor samples were analyzed by RNA-seq. Group 3 medulloblastoma cell line (D341) was analyzed by RNA-seq. OTX2 was depleted by infection with lentiviral shRNAs (sh OTX2 and sh GFP control). Raw data not provided for primary Medulloblastoma samples due to patient privacy concerns. Submitter states that the raw data for these samples will be submitted to dbGaP.
OTX2 Activity at Distal Regulatory Elements Shapes the Chromatin Landscape of Group 3 Medulloblastoma.
Cell line, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
MYC regulation of a "poor-prognosis" metastatic cancer cell state.
Specimen part, Cell line
View SamplesExpression data from ERBB2 over-expression and EGF stimulation in MCF10A cells
MYC regulation of a "poor-prognosis" metastatic cancer cell state.
Specimen part, Cell line
View SamplesExpression data from DHT stimulation vs. control in LNCaP cells
MYC regulation of a "poor-prognosis" metastatic cancer cell state.
Specimen part, Cell line
View SamplesIn cytotoxic T cells (CTL), Protein Kinase B /Akt is activated by the T cell antigen receptor (TCR) and the cytokine Interleukin 2 (IL2), in part by phosophorylation of Akt by Phospholipid dependent kinase 1 (PDK1).
Protein kinase B controls transcriptional programs that direct cytotoxic T cell fate but is dispensable for T cell metabolism.
Specimen part
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