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Endothelial cells present an innate resistance to glucocorticoid treatment: implications for therapy of primary vasculitis

ABSTRACT: Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium.

ORGANISM(S): Homo sapiens

PROVIDER: GSE25269 | GEO | 2011/11/10

SECONDARY ACCESSION(S): PRJNA134811

REPOSITORIES: GEO

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Endothelial cells present an innate resistance to glucocorticoid treatment: implications for therapy of primary vasculitis

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. Huvec were treated for 4h and 16h with dexamethasone. Two independent experiments.

2011-11-10 | E-GEOD-25269 | biostudies-arrayexpress

Expression data from renal collecting duct epithelial cell line

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2018-03-08 | GSE111519 | GEO

Expression data from CC10-rtta/teton-IL-13 tg mice fed with or without doxycycline

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of regulated genes during EE.

2010-07-01 | GSE21267 | GEO

Expression data from early Drosophila embryo

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Keywords: time course

2006-01-01 | GSE3955 | GEO

Expression data from CC10-rtta/teton-IL-13 tg mice fed with or without doxycycline

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of regulated genes during EE. CC10-rtta/teton-IL-13 mice were fed either with doxycycline or regular diet (Dox vs. NODOX). Esophaguses were collected and submitted to RNA extraction and hybridization on Affymetrix microarrays.

2010-07-30 | E-GEOD-21267 | biostudies-arrayexpress

Transcription profiling of mouse uteri after ovariectomy and DHT treatment.

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We study the whole genome expression profile aftre DHT treatment in the uteri of gonadectomized mouse. Experiment Overall Design: Ten 10-11 weeks old C57Bl/6 mice were gonadectomized under isoflurane-induced anesthesia and sacrified seven days after GDX. Mice were injected s.c with DHT (0.1mg/mice) or vehicle, at 0.5, 1, 3, 6, 12 or 24 h before sacrifice. Uteri was removed and pooled before total RNA extraction. Samples was hybridized to U74Av2 Genechips (Affymetrix).

2008-10-18 | E-GEOD-6237 | biostudies-arrayexpress

Gene expression data from patients with pancreatic ductal adenocarcinoma

Project description:Pancreatic ductal adenocarcinoma (PDAC) is one of the most treatment-resistant malignancies in human. To perform transcriptomic profiling on PDAC, we collected primary PDAC tissues from surgically resected PDAC patients at the Memorial-Sloan Kettering Cancer Center (NY, USA). Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We used microarrays to detail transcritomic profiling of PDACs.

2021-09-23 | GSE184585 | GEO

Transcription profiling of Drosophila melanogaster at multiple developmental stages to examine morphogenesis of epithelial tissue

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primary epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Experiment Overall Design: Drosophila embryos were selected at successive stages of early development for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain homogeneous populations of embryos at each developmental stage in order to increase the temporal resolution of expression profiles. To that end, we hand-selected embryos according to morphological criteria at five time-points: before pole cell formation, i.e. before zygotic transcription (T0), during the slow phase (T1) and the fast phase (T2) of cellularisation and at the beginning (T3) and the end (T4) of gastrulation.

2007-10-31 | E-GEOD-3955 | biostudies-arrayexpress

Apyrase-mediated amplification of secretory IgA promotes intestinal homeostasis

Project description:Morphogenesis of epithelial tissues relies on the precise developmental control of cell polarity and architecture. In the early Drosophila embryo, the primarSecretory IgA (SIgA) interaction with commensal bacteria regulates the composition and function of the microbiota, contributing to gut ecosystem homeostasis. However, mechanisms regulating the reciprocal control of microbiota and SIgA are not defined. Bacteria-derived ATP limits T follicular helper (Tfh) cells activity in the Peyer’s patches (Pps) of the small intestine via the P2X7 receptor and thereby SIgA generation. Here we show that inhibition of bacteria derived ATP signaling by delivery of the ATP-degrading enzyme apyrase to the intestine results in the amplification of the SIgA repertoire. The enhanced breadth of SIgA in mice colonized with apyrase-releasing E. Coli conditioned topographical distribution of bacteria and expression of genes involved in metabolic versus immune functions in the intestinal epithelium. SIgA mediated conditioning of bacteria and enterocyte function was also reflected by selective differences in nutrients absorption in mice colonized with apyrase expressing bacteria. Hydrolysis of bacteria derived ATP was particularly helpful in restoring intestinal homeostasis via SIgA in antibiotics induced dysbiosis. Administration of apyrase expressing bacteria attenuated intestinal barrier impairment, glucose metabolism perturbation and susceptibility to infection by enteric pathogens induced by antibiotic treatments. Therefore, microbiota derived ATP regulates SIgA, and amplification of SIgA response by apyrase can be leveraged to restore intestinal fitness in dysbiotic conditions.y epithelium forms during cellularisation, following a tightly controlled genetic programme where specific sets of genes are up-regulated. Some of them, for instance, control membrane invagination between the nuclei anchored at the apical surface of the syncytium.

2022-07-13 | GSE203433 | GEO

Reducing the Toxicity of Long-Term Glucocorticoid Treatment in Large Vessel Vasculitis.

Project description:PURPOSE:While glucocorticoids (GCs) are effective in large vessel vasculitis (LVV), they may cause serious adverse events (AEs), especially if taken for longer durations and at higher doses. Unfortunately, patients suffering from LVV often need long-term treatment with GCs; therefore, toxicity needs to be expected and countered. RECENT FINDINGS:GCs remain the mainstay of therapy for both giant cell arteritis and Takayasu arteritis. In order to minimize their toxicity, the following strategies should be considered: GC tapering, administration of conventional synthetic (e.g., methotrexate) or biologic (e.g., tocilizumab) GC-sparing agents, as well as monitoring, prophylaxis, and treatment of GC-related AEs. Several drugs are currently under investigation to expand the armamentarium for the treatment of LVV. GC treatment in LVV is effective but associated with toxicity. Strategies to minimize this toxicity should be applied when treating patients suffering from LVV.

| S-EPMC7550368 | biostudies-literature

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