Interleukin-17 (IL-17) is essential in host defense against extracellular bacteria and fungi, especially at mucosal sites, but it also contributes significantly to inflammatory and autoimmune disease pathologies. Binding of IL-17 to its receptor leads to recruitment of the adaptor protein CIKS/Act1 via heterotypic association of their respective SEFIR domains and to activation of the transcription factor NF-kB; it is not known whether CIKS and/or NF-kB are required for all gene induction events. Here we report that CIKS is essential for all IL-17 induced immediate-early genes in primary mouse embryo fibroblasts, while NF-kB is profoundly involved. We also identify a novel sub-domain in the N-terminus of CIKS that is essential for IL-17-mediated NF-kB activation. This domain is both necessary and sufficient for the interaction between CIKS and TRAF6, an adaptor required for NF-kB activation. The ability of decoy peptides to block this interaction may provide a new therapeutic strategy for intervention in IL-17-driven autoimmune and inflammatory diseases.
IL-17-induced NF-kappaB activation via CIKS/Act1: physiologic significance and signaling mechanisms.
Specimen part, Treatment
View SamplesMDSC (myeloid-derived suppressor cells) can be differentiated in vitro using IL-6 and GM-CSF. To identify the specific role of IL-6 in this process, we used microarray to compare MDSC differentiated with IL-6 and GM-CSF to MDSC differentiated with GM-CSF alone. We have found genes and pathways that are up- or downregulated when IL-6 is present.
IL-6 regulates CCR5 expression and immunosuppressive capacity of MDSC in murine melanoma.
Specimen part, Treatment
View SamplesWe identified genes whose expression changes between stage 8 and stage 10. We also identified genes whose expression was altered in stage 10 from temperature senstive ecdysone receptor mutant flies raised at the restrictive temperature. The experiments showed a significant number of genes that are upregulated in stage 10 depend EcR-mediated signaling. Overall design: 3 samples x 3 repeats
Steroid Signaling Establishes a Female Metabolic State and Regulates SREBP to Control Oocyte Lipid Accumulation.
Sex, Specimen part, Cell line, Subject
View SamplesAnalysis of expression changes in prelabeled laser-microdissected thoracic propriospinal neurons at different times after low-thoracic spinal cord transection in adult rats.
Intrinsic response of thoracic propriospinal neurons to axotomy.
Sex, Age, Specimen part, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Human Platelet Lysate versus Fetal Calf Serum: These Supplements Do Not Select for Different Mesenchymal Stromal Cells.
Sex, Age, Specimen part, Subject
View SamplesCulture medium of mesenchymal stromal cells (MSCs) is usually supplemented with either human platelet lysate (HPL) or fetal calf serum (FCS). Many studies have demonstrated that proliferation and cellular morphology is influenced by these additives hence they may favor outgrowth of specific subpopulations, thereby affecting the heterogeneous composition of MSCs. We have isolated and expanded human bone marrow derived MSCs in parallel with HPL or FCS for two passages. In HPL the proliferation was significantly higher and cells reflected more spindle-shaped morphology. Pairwise comparisons of gene expression profiles (Affymetrix HTA 2.0) revealed only moderate differences. When we apply a fold change >1.5 and limma-adjusted P-value of <0.05, only 69 transcripts were differentially expressed. These results indicate that there is no systematic bias for specific subpopulations of MSCs by using either HPL or FCS.
Human Platelet Lysate versus Fetal Calf Serum: These Supplements Do Not Select for Different Mesenchymal Stromal Cells.
Sex, Age, Specimen part, Subject
View SamplesIdentify genes that are differentially regulated as a consequence of restoration of full-length functional APC in a colorectal cancer cell lines. Overall design: Examine mRNA expression level changes between SW480 (APC defective) and SW480+APC (SW480 cells with restored functional APC) cells, whilst accounting for any non-specific expression changes by comparison to SW480+control vector.
Differential RNA-seq analysis comparing APC-defective and APC-restored SW480 colorectal cancer cells.
No sample metadata fields
View SamplesALTERED MERISTEM PROGRAM1 (AMP1) is a member of the M28 family of carboxypeptidases with a pivotal role in cell fate maintenance in the embryo and shoot meristem. A defect in AMP1 function results in suspensor to embryo conversion and a hypertrophic shoot meristem forming ectopic stem cell pools. However, so far the role of AMP1 in shoot development could not be assigned to a specific molecular pathway nor is its biochemical function resolved. Double mutants in CYP78A5 and CYP78A7 develop a similar set of cell fate defects. To further assess whether this phenotypic overlap is also depicted in a congruency at the global gene expression level, we analyzed the transcriptomic responses of both genotypes
AMP1 and CYP78A5/7 act through a common pathway to govern cell fate maintenance in Arabidopsis thaliana.
Age, Specimen part
View SampleshEPI-NCSC are neural crest derived multipotent somatic stem cells that persist in hair follicle stem cell niche, termed the bulge, and persist into adulthood (Clewes O et al, 2011). The purpose of this project was to generate two gene expression profiles, (1) of ex vivo expanded hEPI-NCSC (XP) and (2) of cells, whihc after expansion were grown in a culture medium (NP1), which was empirically designed to pre-differentiate the multipotent stem cells into neural stemcell like cells.
Differentiation of human epidermal neural crest stem cells (hEPI-NCSC) into virtually homogenous populations of dopaminergic neurons.
Sex, Specimen part
View SamplesWe generated primary cultures from renal cell carcinoma and matched normal primary kidney cortex tubule cell cultures from 3 patients. Early passage cultures of these two cell types were subjected to chromatin accessibility profiling (DNase-seq) and gene expression profiling (RNA-seq). Studying these paired and patient-matched controlled data sets will shed light on the epigenomic changes that underlie transformation of kidney tubules into malignant cancers. Overall design: Paired DNase-seq and RNA-seq data sets from 2 different primary human kidney cell types (normal and cancer) Note from submitter: The HIM23 samples have a more narrow consent and their raw data will be submitted to dbGaP.
Integrated epigenomic profiling reveals endogenous retrovirus reactivation in renal cell carcinoma.
Sex, Age, Cell line, Subject
View Samples