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SRP131850
Mus musculus
13 Downloadable Samples
Illumina HiSeq 2500
Description
One of the hallmarks of Alzheimer's disease is the presence of extracellular diffuse and fibrillar plaques predominantly consisting of the amyloid-ß (Aß) peptide. ApoE influences the deposition of amyloid pathology through affecting the clearance and aggregation of monomeric Aß in the brain. In addition to influencing Aß metabolism, increasing evidence suggests that apoE influences microglial function in neurodegenerative diseases. Here, we characterize the impact that apoE has on amyloid pathology and the innate immune response in APPPS1?E9 and APPPS1-21 transgenic mice. We report that Apoe deficiency reduced fibrillar plaque deposition consistent with previous studies. However, fibrillar plaques in Apoe-deficient mice exhibited a striking reduction in plaque compaction. Hyperspectral fluorescent imaging using luminescent conjugated oligothiophenes identified distinct Aß morphotypes in Apoe-deficient mice. We also observed a significant reduction in fibrillar plaque-associated microgliosis and activated microglial gene expression in Apoe-deficient mice, along with significant increases in dystrophic neurites around fibrillar plaques. Our results suggest that apoE is critical in stimulating the innate immune response to amyloid pathology. Overall design: Assessed the cortical gene expression of 6-month old APPPS1-21;ApoE-/- (n=7) and APPPS1-21 mice (n=6).
Publication Title
ApoE facilitates the microglial response to amyloid plaque pathology.
Sample Metadata Fields
Cell line, Subject
View Samples- Mus musculus
- 24 Downloadable Samples
- Illumina HiSeq 2500
Description
One of the most common genetic alterations in acute myeloid leukemia is the internal tandem duplication (ITD) in the FLT3 receptor for cytokine FLT3 ligand (FLT3L). The constitutively active FLT3-ITD promotes the expansion of transformed progenitors, but also has pleiotropic effects on normal hematopoiesis. We analyzed the effect of FLT3-ITD on dendritic cells (DCs), which express FLT3 and can be expanded by FLT3L administration. We report that young pre-leukemic mice with the Flt3ITD knock-in allele manifest an expansion of all DCs including classical (cDCs) and plasmacytoid (pDCs). The expansion originated in DC progenitors, occurred in a cell-intrinsic manner and was further enhanced in Flt3ITD/ITD mice. The mutation caused the downregulation of Flt3 on the surface of DCs and reduced their responsiveness to Flt3L. Flt3ITD mice showed enhanced capacity to support T cell proliferation, including a cell-extrinsic expansion of regulatory T cells (Tregs). Accordingly, these mice restricted alloreactive T cell responses during graft-versus-host reaction, but failed to control autoimmunity in the absence of Tregs. Thus, the FLT3-ITD mutation directly affects DC development, thereby indirectly modulating T cell homeostasis and supporting Treg expansion. This effect of FLT3-ITD may subvert immunosurveillance and promote leukemogenesis in a cell-extrinsic manner. Overall design: Sorted splenic dendritic cell subsets from either Flt3+/+ or Flt3ITD/+ mice were sequenced for mRNA profiling. For each subset per genotype contains 2-3 replicates, all from independent experiments.
Publication Title
Leukemia-associated activating mutation of Flt3 expands dendritic cells and alters T cell responses.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 2 Downloadable Samples
Illumina HumanWG-6_V2_0_R2
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Promoter DNA methylation patterns of differentiated cells are largely programmed at the progenitor stage.
Sample Metadata Fields
Specimen part
View Samples- Drosophila melanogaster
- 6 Downloadable Samples
- Affymetrix Drosophila Genome 2.0 Array (drosophila2)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Ibf1 and Ibf2 are novel CP190-interacting proteins required for insulator function.
Sample Metadata Fields
Disease, Cell line
View Samples- Homo sapiens
- 12 Downloadable Samples
Illumina HumanHT-12 V4.0 expression beadchip, Illumina HumanWG-6 v3.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Epigenetic priming of inflammatory response genes by high glucose in adipose progenitor cells.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 2 Downloadable Samples
- Illumina HumanWG-6_V2_0_R2
Description
We surveyed DNA methylation profiles of all human RefSeq promoters in relation to gene expression and differentiation in adipose tissue, bone marrow and muscle mesenchymal progenitors, as well as in bone marrow-derived hematopoietic progenitors. We unravel strongly overlapping DNA methylation profiles between adipose stem cells (ASCs), bone marrow mesenchymal stem cells (BMMSCs) and muscle progenitor cells (MPCs), while hematopoietic progenitor cells (HPCs) are more epigenetically distant from MSCs seen as a whole. Differentiation resolves a fraction of methylation patterns common to MSCs, generating epigenetic divergence.
Publication Title
Promoter DNA methylation patterns of differentiated cells are largely programmed at the progenitor stage.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 9 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
The object of this study was to investigate the effect of elevated glucose concentrations (15 and 25 mM glucose) on gene expression in undifferentiated and adipogenic differentiated ASCs.
Publication Title
Epigenetic priming of inflammatory response genes by high glucose in adipose progenitor cells.
Sample Metadata Fields
Specimen part
View Samples- Drosophila melanogaster
- 6 Downloadable Samples
- Affymetrix Drosophila Genome 2.0 Array (drosophila2)
Description
Gene expression in S2 cells after CG9740 or CP190 RNAi
Publication Title
Ibf1 and Ibf2 are novel CP190-interacting proteins required for insulator function.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 3 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
The aim of this study was to characterize basal gene expression for proliferating adipose tissue MSCs, cultured at normal cell culture conditions.
Publication Title
Epigenetic priming of inflammatory response genes by high glucose in adipose progenitor cells.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 135 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Expression data were generated on 136 subjects from the COPDGene study using Affymetrix microarrays. Multiple linear regression with adjustment for covariates (gender, age, body mass index, family history, smoking status, pack years) was used to identify candidate genes and Ingenuity Pathway Analysis was used to identify candidate pathways.
Publication Title
Peripheral blood mononuclear cell gene expression in chronic obstructive pulmonary disease.
Sample Metadata Fields
Sex, Specimen part
View Samples