Complement protein C1q is induced after injury in the brain and during Alzheimer's disease and has been shown to protect against amyloid-beta induced neuronal death. In this study, we used microarray approach to identify the pathways modulated by C1q that are associated with neuroprotection.
C1q-induced LRP1B and GPR6 proteins expressed early in Alzheimer disease mouse models, are essential for the C1q-mediated protection against amyloid-β neurotoxicity.
Specimen part, Treatment
View SamplesIdentification of transcriptional profiles stimulated by the complement protein C1q in rat immature neurons associated with the C1q-dependent neuroprotection observed in vitro.
Complement protein C1q-mediated neuroprotection is correlated with regulation of neuronal gene and microRNA expression.
Specimen part
View SamplesCo-stimulatory molecules of the CD28 family on T lymphocytes integrate cues from innate immune system sensors, and modulate activation responses in conventional CD4+ T cells (Tconv) and their FoxP3+ regulatory counterparts (Treg). To better understand how costimulatory and co-inhibitory signals might be integrated, we profiled the changes in gene expression elicited in the hours and days after engagement of Treg and Tconv by anti-CD3 and either anti-CD28, -CTLA4, -ICOS, -PD1, -BTLA or -CD80.
Convergent and divergent effects of costimulatory molecules in conventional and regulatory CD4+ T cells.
Sex, Age, Specimen part
View SamplesWe report transcriptional characterization of skeletal muscle macrophage subsets in normal and injured muscle after intramuscular injection with cardiotoxin. We profiled transcriptional differences in macrophage subsets from mice depleted of Treg cells using Foxp3-DTR mice. We uncovered an IFN-g-centered regulatory loop, in which Treg cells inhibit NK and T cells to control macrophage accumulation and phenotype during muscle regeneration.
T<sub>reg</sub> cells limit IFN-γ production to control macrophage accrual and phenotype during skeletal muscle regeneration.
Sex, Age, Specimen part
View SamplesThis study was performed to understand what controls the aggressivity of the pancreatic infiltrate during type-I diabetes development. We used the BDC2.5 transgenic mouse model. Samples were obtained at the age of onset of insultis. Depending on their genetic background, mice transgenic for the BDC2.5 T cell receptor present very different forms of insulitis. The NOD genetic background leads to a benign insulitis whereas the C57Bl/6-H2g7/g7 leads to an aggressive insulitis. We first studied how antigen-specific T cells are affected by these differences by obtaining the transcriptional profiles of BDC2.5 T cells from pancreas and pancreatic lymph nodes. We also compared the gene expression profiles of the entire leukocyte population present in the pancreatic lesion.
Natural killer cells distinguish innocuous and destructive forms of pancreatic islet autoimmunity.
Age, Specimen part
View SamplesThree innate (B1-B, NKT, CD8aaT cells) and adaptive (B2-B, CD4T, CD8abT cells) cell-types were sorted by FACS. Three biological replicates for NKT, CD4T, CD8aaT, CD8abT cells and two biological replicates for B1 and B2 cells were generated and the expression profiles were determined using Affymetrix Mu74Av2 chip. Comparisons between the sample groups allow the identification of genes differentially expressed between the innate and adaptive cell-types.
A shared gene-expression signature in innate-like lymphocytes.
No sample metadata fields
View SamplesThe aim of this study was to determine the effect of transgenic Aire expression on the transcriptional profile of a tissue that normally does not express Aire: pancreatic islets. The transcriptional profile of transgenic RIP-Aire27 islets was compared to non-transgenic littermate islets as well as to archival NOD thymic medullary epithelial cells (MEC) data. All data were from non-obese diabetic (NOD) mice
Transcriptional impact of Aire varies with cell type.
No sample metadata fields
View SamplesFour independent chip hybridization with RNAs from four independent RTOC cultures.
Self-reactivity in thymic double-positive cells commits cells to a CD8 alpha alpha lineage with characteristics of innate immune cells.
No sample metadata fields
View SamplesAdult neural tissue was treated with an HDAC inhibitor, TSA to assess changes in gene expression, which was then correlated with control adult tissue as well as early postnatal controls to determine effects of increased histone acetylation on gene expression in various neural cell populations
Transcriptomics of critical period of visual cortical plasticity in mice.
No sample metadata fields
View SamplesThe first T cells to arrive in the liver were mostly T regulatory (Treg) cells and metabolically active, highly proliferative T conventional (Tconv) cells. The Tconv cells had unusually high expression of PD-1 and the IL-33 receptor, ST2. As these PD-1+ Tconv cells accumulated in the tissue, they gradually lost their expression of ST2, ceased to proliferate and acquired an anergic phenotype. Overall design: Gene expression profiles of flow cytometry sorted DAPI negative CD45 positive TCRb positive CD4 positive Foxp3 negative cells from liver of 5- and 10-day-old B6.Aire-KO mice
T cell anergy in perinatal mice is promoted by T reg cells and prevented by IL-33.
Age, Specimen part, Cell line, Subject
View Samples