Browse
Submit Data
Databases
API
Help

Dataset Information

404 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

IgG-independent co-aggregation of FceRI and FcgRIIB results in LYN- and SHIP1-dependent tyrosine phosphorylation of FcgRIIB

ABSTRACT: We used tyrosine phosphorylation profiling by anti-pTyr-antibody mediated enrichment and subsequent analysis by mass spectrometry in order to determine the changes in early signalling after mast cell activation. Mast cells were stimulated with varying concentrations of antigen for one minute and the differences between optimal (20 ng/ml) and supra-optimal (2000 ng/ml) antigen mast cell activation were analysed by nanoLC-MS/MS.

INSTRUMENT(S): LTQ Orbitrap Elite

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Mast Cell, Bone Marrow

SUBMITTER: Christian Preisinger

LAB HEAD: Michael Huber

PROVIDER: PXD009318 | Pride | 2018-08-17

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	OR1_2017_10_03_MG_3rd_pY_BMMC1_170316152555.raw	Raw
	OR1_2017_10_03_MG_3rd_pY_BMMC2.raw	Raw
	OR1_MG2_pY_MCtriple1.raw	Raw
	OR1_MG2_pY_MCtriple2.raw	Raw
	OR1_MG_pY_MCtriple1.raw	Raw

Items per page:

1 - 5 of 8

Publications

IgG-Independent Co-aggregation of FcεRI and FcγRIIB Results in LYN- and SHIP1-Dependent Tyrosine Phosphorylation of FcγRIIB in Murine Bone Marrow-Derived Mast Cells.

Gast Mathias M Preisinger Christian C Nimmerjahn Falk F Huber Michael M

Frontiers in immunology 20180827

Activation of the high-affinity receptor for IgE (FcεRI) follows a bell-shaped dose-response curve. Upon supra-optimal stimulation, mast cell effector responses are down-regulated by inhibitory molecules like the SH2-containing inositol-5'-phosphatase SHIP1 and the SRC-family-kinase LYN. To identify further molecules involved in a negative regulatory signalosome, we screened for proteins showing the same pattern of tyrosine phosphorylation as SHIP1, which is tyrosine-phosphorylated strongest upo ...[more]

PMID: 30210494

Similar Datasets

Gene expression profiling of IL-18 stimulated, in vitro differentiated mouse mucosal mast cells (MMC)

Project description:The aim of the present study was to clarify the role of IL-18 in mouse mast cell functions. Mouse mucosal mast cells (Balb/c) were differentiated in the presence of IL-3 (5 ng/ml), SCF (40 ng/ml), IL-9 (10 ng/ml) and human TGFbetaI (2 ng/ml) for >4 weeks. Cells were then stimulated by 100 ng/ml IL-18 for 2 hours to monitor the direct effect of IL-18. Treated samples were compared to the untreated ones in a paired experimental setting. Keywords: expression microarray, mast cell, IL-18

2008-09-26 | GSE9736 | GEO

Transcription profiling of mouse IgE/antigen-activated mast cells stimulated with TIM-3

Project description:TIM-3 is known to be expressed on dendritic cells, monocytes, melanoma cells, mast cells and on activated Th1 cells. In activated Th1 cells, stimulating TIM-3 by one of its ligands, galectin-9, leads to apoptosis and thus it plays a central role in terminating Th1-type immune responses. Interestingly, in IgE/antigen-activated mast cells TIM-3 enhances the production of IL-13 and IL-4. To get a more complete picture about the gene expression changes induced by TIM-3 in mast cells, in vitro differentiated mouse immature mast cells were stimulated by an agonist anti-TIM-3 antibody and IgE-sensitized mouse immature mast cells were activated by antigen and an agonist anti-TIM-3 antibody for 2 or 16 hours (overnight). Experiment Overall Design: Bone marrow cells were differentiated in RPMI + 10% FCS + 5 ng/ml mouse IL-3 + 40 ng/ml mouse SCF for >4 weeks. The purity of the cell cultures was >90% at this time point (FcERIa+/c-kit+ cells). These in vitro-differentiated immature mast cells were then treated by either control goat IgG or an agonist anti-mouse TIM-3 antibody (RnD Systems, 15 ug/ml for 2 or 16 hours). For the IgE/antigen-activated mouse mast cells, these in vitro-differentiated immature mast cells were sensitized by 5 ug/ml anti-DNP IgE (Sigma) for 1 hour and then treated with 100 ng/ml DNP-HSA (antigen, Sigma) and either control goat IgG or an agonist anti-mouse TIM-3 antibody (RnD Systems, 15 ug/ml) for 2 or 16 hours. The anti-TIM-3 samples were labeled by Cy5 and they were compared to the Cy3-labeled, goat IgG controls in a dual-color, paired experimental setup. The Agilent Whole Mouse Genome 4x44K expression microarray kit and Dual-Color Protocol version 5.5 were used in the experiments.

2009-10-15 | E-GEOD-14438 | biostudies-arrayexpress

Stem cell factor programs the mast cell activation phenotype

Project description:Mast cells, activated by antigen via the high affinity receptor for IgE (FcεRI), release an array of pro-inflammatory mediators that contribute to allergic disorders such as asthma and anaphylaxis. The KIT ligand, stem cell factor (SCF), is critical for mast cell expansion, differentiation and survival, and, under acute conditions, enhances mast cell activation. However, extended SCF exposure in vivo conversely protects against fatal antigen-mediated anaphylaxis. In investigating this dichotomy, we identified a novel mode of regulation of the mast cell activation phenotype through SCF-mediated programming. We found that mouse bone marrow-derived mast cells chronically exposed to SCF displayed a marked attenuation of FcεRI-mediated degranulation and cytokine production. The hypo-responsive phenotype was not a consequence of altered signals regulating calcium flux or protein kinase C, but of ineffective cytoskeletal reorganization, with evidence implicating a down-regulation of expression of the Src kinase Hck. Collectively, these findings demonstrate a major role for SCF in the homeostatic control of mast cell activation with potential relevance to mast cell-driven disease and the development of novel approaches for the treatment of allergic disorders. Mouse bone marrow-derived mast cells were treated with IL3, IL3+IL33, or IL3+SCF. Six replicates each.

2012-05-01 | E-GEOD-35332 | biostudies-arrayexpress

MicroRNA profiling of mouse bone marrow-derived mast cells during mucosal differentiation and IgE-mediated activation

Project description:The aim of this study was to investigate microRNA expression pattern and its functional relevance on the commitment toward mucosal differentiation and on IgE-mediated activation of mast cells. To identify microRNA genes the expression of which change during the differentiation and activation of murine primary mast cells in vitro, the putative committed progenitors (c-kit+ cells isolated on day 6 from differentiating cultures), immature mast cells (BMMC), mucosal-type mast cells (MMC), and IgE-activated mast cells were compared by Agilent microRNA array. RNA was isolated by miRNeasy (Qiagen) from: 1) c-kit+ cells, isolated from differentiating cultures (in the presence of IL3 and SCF) derived from the bone marrow using MACS column purification, 2) immature BMMCs obtained by cultivation of bone marrow cells in the presence of IL3 and SCF for 4 weeks, 3) mucosal-type mast cells by additional differentiation of immature BMMCs for 5 days by supplementation of IL9 and TGFbeta, and 4) activated mast cells by presensitization with anti-DNP IgE followed by IgE-crosslinking by DNP-antigen challenge for 2 hours. Agilent microRNA microarray was run on these experimental groups. Four biological replicates were included in every experimental group.

2011-01-01 | E-GEOD-24321 | biostudies-arrayexpress

Mediating effects of miR-155 on the FceRI signaling responses of mast cells

Project description:MicroRNA 155 (miR-155) has been shown to regulate the gene expression of important players of physiological and pathological processes, like hematopoietic lineage differentiation, immunity and inflammation, viral infections, cancer and cardiovascular diseases, among others. Degranulation is an event in which mast cells, upon activation of the FceRI, release their granule content rich in vasoactive amines, proteases and TNFa. Additionally activation of the receptor promotes de novo synthesis of cytokines, chemokines and growth factors. Analysis of bone marrow derived mast cells (BMMC) deficient in miR-155 showed a significant increase in FceRI mediated degranulation and in the release of cytokines like TNFa, IL-6 and IL-13. In addition miR 155-/- mice presented higher anaphylaxis reactions compared to WT mice. Gene expression analysis of BMMC was performed in order to identify intermediaries of FceRI mediated degranulation under the control of miR-155. The results indicate that miR-155 regulates negatively the expression of the regulatory subunits of the kinase PI3Kgamma, Pik3r5 (p101) and Pik3r6 (p84, p87PIKAP), involved in Ca+ influx and degranulation. Total RNA from 3 independent cultures of WT and miR-155-/- BMMC treated with anti-DNP IgE and 20 ng/ml DNP-HSA for 1hr were used to performed gene expression analysis using the Affymetrix GenechipM-BM-. Mouse Gene 1.0 ST

2014-03-20 | E-GEOD-56030 | biostudies-arrayexpress

SCF -licensed induction of a mucosal mast cell-like transcriptional program by TGF-b

Project description:This study evaluates the effects of 72h stimulus with stem cell factor (SCF) (100 ng/mL) and TGF-b (1 ng/mL or 10 ng/mL), both alone and in combination, on the transcriptome of bone marrow-derived cultured mast cells (BMMCs) grown in IL-3 for 6-8 weeks. Through this approach, we find that SCF dramatically enhances TGF-b mediated upregulation of signature genes associated with mucosal mast cells, including transcripts encoding the proteases mMCP-1 (Mcpt1) and mMCP-2 (Mcpt2). Replicates indicate biologic duplicates. Samples were sequenced on an Illumina NextSeq 500.

2020-08-03 | GSE155571 | GEO

IL-33 induces a hypo-responsive human mast cell phenotype

Project description:Interleukin-33 (IL-33) is elevated in afflicted tissues of patients with mast cell-dependent chronic allergic diseases. Based on its acute effects on mouse mast cells (MCs), IL-33 is thought to play a role in the pathogenesis of allergic disease through MC activation. However, the manifestations of chronic IL-33 exposure on human MC function, which best reflect the conditions associated with chronic allergic disease, are unknown. We now find that long-term exposure of human and mouse MCs to IL-33 results in a substantial reduction of MC activation in response to antigen. This reduction required >72 h exposure to IL-33 for onset and 1-2 wk for reversion following IL-33 removal. This hypo-responsive phenotype was determined to be a consequence of MyD88-dependent attenuation of signaling processes necessary for MC activation including antigen-mediated calcium mobilization and cytoskeletal reorganization; potentially as a consequence of down-regulation of the expression of PLCg1 and Hck. These findings suggest that IL-33 may play a protective, rather than a causative role in MC activation under chronic conditions and, furthermore, reveal regulated plasticity in the MC activation phenotype. The ability to down-regulate MC activation in this manner may provide alternative approaches for treatment of MC-driven disease. Mouse bone marrow-derived mast cells treated with IL3 or IL3+IL33. 6 replicates each.

2013-02-06 | E-GEOD-39382 | biostudies-arrayexpress

Notch signaling promotes differentiation of mouse mucosal mast cells

Project description:Intestinal mucosal mast cells are critically involved in the development of food-induced allergic disorders. However, factors that induce differentiation of mucosal mast cells in the intestinal mucosa are largely unknown. To identify factors involved in mucosal mast cell differentiation, we compared the gene expression profiles between mucosal mast cells isolated from the small intestine and bone marrow-derived mast cells cultured in the presence of TGF-Î² or Notch ligand. Mucosal mast cells were isolated from the small intestine of naÃ¯ve BALB/c mice by flow cytometry. Bone marrow-derived mast cells (BMMCs) were generated by culturing BALB/c bone marrow cells with murine interleukin-3 and stem cell factor for 3-4 weeks, and then cells were cultured for 6 days in the presence or absence of TGF-Î² or Delta-like 1 (Dll1), which is a Notch ligand. Total RNAs extracted from these cells were processed and hybridized to Affymetrix GeneChips.

2016-06-15 | E-GEOD-80139 | biostudies-arrayexpress

Two functionally distinct subsets of mast cells generated through IL-2 independent CD25 activities

Project description:CD25 (IL-2R) can be expressed on the surface of immune cells in the absence of other chains of the interleukin-2 receptor (IL-2R), which are indispensable for IL-2 signaling. We identified two novel mast cell subsets, characterized by the differential expression of surface CD25, and by the ability to produce different cytokines and to proliferate, both in vitro and in vivo. We provide evidence that functional differences between the two mast cell populations were dependent on CD25 itself, which directly modulated mast cell proliferation and responses in vivo. These effects were completely independent from IL-2 or the expression of the other chains of the high-affinity IL-2R, indicating an autonomous and previously unappreciated role for CD25 in regulating cell functions. Similar results were also obtained in dendritic cells, which are known to express CD25 but to be unresponsive to IL-2. Our findings indicate a general role for CD25 in contexts where IL-2 signaling is not involved, and may have important implications for all mast cell-related diseases, including mastocytosis, where CD25 is aberrantly expressed on pathogenic mast cells. Total mRNA of FACS-sorted CD25pos and CD25neg populations of primary bone marrow-derived mast cells (BMMCs) was extracted and subjected to by multiparallel sequencing.

2014-08-03 | E-GEOD-52502 | biostudies-arrayexpress