Microarray analysis of dithranol-treated psoriasis lesions before, during and after therapy
Dithranol targets keratinocytes, their crosstalk with neutrophils and inhibits the IL-36 inflammatory loop in psoriasis.
Time
View SamplesFasting is the process of metabolic adaption to food deprivation that is taking place in most organisms, e.g. during the daily resting phase in mammals. Furthermore, in biomedical research fasting is used in most metabolic studies to synchronize nutritional states of study subjects. Because there is a lack of standardization for this procedure, we need a deeper understanding of the dynamics and the molecular players in fasting. In this study we investigated the transcriptome signature of white adipose tissue, liver, and skeletal muscle in 24 hours fasted mice (and chow fat controls) using Affymetrix whole-genome microarrays.
Metabolite and transcriptome analysis during fasting suggest a role for the p53-Ddit4 axis in major metabolic tissues.
Sex, Specimen part
View SamplesAccute stretch and tachycardia are capable of inducing pathological excitation transcription coupling - an early invent before structural cardiac remodeling which transitions to heart failure. The sodium calcium exchanger is a key player in maintaining calcium homeostasis and is implicated in pathological signaling during heart failure.
The role of stretch, tachycardia and sodium-calcium exchanger in induction of early cardiac remodelling.
Specimen part, Treatment
View SamplesBackground: Cluster formation of hypertrophic chondrocytes is a sign of late stage osteoarthritis. In vitro chondrocytes have the ability to migrate on scaffolds. Important for motility issues in cartilage are integrines, part of the extracellular matrix, important for locomotory stimuli. The integrine Laminin4 is highly present in hypertrophic clusters of chondrocytes. We were interested if a blockade of LAMA4 is leading to less cluster formation.
No associated publication
Specimen part, Treatment, Subject
View SamplesCebpa is a gene known for its role in hematopoetic development. Though it is proven to be indispensible in myelopoesis, the details of the role played by Cebpa in dendritic cell development is fairly unknown. Steady state DC development can be modelled in vitro by treating Lin- HSPC with FLT3L.
TNFα Rescues Dendritic Cell Development in Hematopoietic Stem and Progenitor Cells Lacking C/EBPα.
Specimen part
View SamplesDuring inflammation, neutrophils are rapidly mobilized from the bone marrow storage pool into peripheral blood to subsequently enter lesional sites where most of them rapidly undergo apoptosis. Monocytes constitute a second wave of inflammatory immigrates giving rise to long-lived macrophages and dendritic cell subsets. According to descriptive immunophenotypic and cell culture studies, neutrophils may directly transdifferentiate into monocytes/macrophages. We here provide mechanistic data in human supporting the existence of this cellular pathway. Global transcriptional profiling of neutrophil-dervived monocytic cells revealed close resemblance of gene expression with monocytes and a clear separation of these cells from neutrophils.
No associated publication
Specimen part, Subject
View SamplesHere we investigated the effects of acute p53 deletion on the fasting response in mice.
No associated publication
Sex
View SamplesDefine the impact of Tyk2 and Tyk2K923E on the transcriptome of NK cells
No associated publication
Sex, Specimen part
View SamplesCholestasis may cause cholemic nephropathy that can be modelled in common bile duct ligated (CBDL) mice. We aimed to explore the therapeutic efficacy and mechanisms of norursodeoxycholic acid (norUDCA) in cholemic nephropathy. To determine whether norUrsodeoxycholic acid (norUDCA) prevents cholemic nephropathy in long-term CBDL mice, a norUDCA-enriched diet (0.125% w/v, corresponding to 200 mg/kg/day for a mouse of 25 g body weight eating about 4g daily) or a standard mouse diet (Sniff, Soest, Germany) were started 5 days prior to CBDL and were continued until harvesting 3 weeks thereafter. For transcriptional profiling using microarray technology, we compared sham-operated (SOP) mice and 3-week CBDL mice that were either fed 0.125% norUDCA-enriched or standard mouse diets.
NorUrsodeoxycholic acid ameliorates cholemic nephropathy in bile duct ligated mice.
Specimen part
View SamplesLangerhans dendritic cells represent abundantly occuring and evolutionary highly conserved DCs specifically located in the stratified epithelial tissues. LCs are unique among DC family members in that they express epithelial-type adhesion molecules, allowing them to form a tight three-dimensional network in basal and suprabasal epidermal keratinocyte layers and developmentally dependent on the cytokine TGF-1. In the present study, we identified BMP-7 as another key factor inducing LC differnetiation. Here we have performed comparative analysis of highly purified CD207+/CD1a+ in vitro generated Langerhans cells in the presence of BMP-7 and TGF-1. We have identified that both BMP-7-LCs and TGF-1-LCs are closely related to each other.
Identification of bone morphogenetic protein 7 (BMP7) as an instructive factor for human epidermal Langerhans cell differentiation.
Specimen part, Treatment, Subject
View Samples