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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of mouse lymphtoxin beta receptor-deficient thymic medullary epithelial cells vs. wild-type and Aire-deficient vs wild-type littermates

ABSTRACT: We compared gene expression profiles of lymphotoxin alpha- and lymphtoxin beta receptor-deficient thymic medullary epithelial cells with their wild-type littermates, as well as with Aire-deficient and wild-type littermates. This was done in order to determine whether there was overlap in the effects of lymphotoxin and aire. Experiment Overall Design: Individual thymi were digested with collagenase, dispase and DNAse, and meduallary epithelial cells with the phenotype CD45-G8.8+Ly51intMHCclasssIIhi were isolated by FACS.

ORGANISM(S): Mus musculus

SUBMITTER: CBDM Lab

PROVIDER: E-GEOD-8563 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Lymphotoxin pathway and Aire influences on thymic medullary epithelial cells are unconnected.

Venanzi Emily S ES Gray Daniel H D DH Benoist Christophe C Mathis Diane D

Journal of immunology (Baltimore, Md. : 1950) 20071101 9

The lymphotoxin pathway is critical for the development and maintenance of peripheral lymphoid organs. Mice with deficiencies in members of this pathway lack lymph nodes and Peyer's patches and have abnormal spleen architecture. These animals also develop autoantibodies to and lymphocytic infiltrates of multiple organs, provoking speculation that the lymphotoxin pathway may play a role in central tolerance induction. Indeed, a series of reports has claimed that lymphotoxin signals control the ex ...[more]

PMID: 17947641

Similar Datasets

Lymphtoxin pathway effects on thymic medullary epithelial cells

Project description:We compared gene expression profiles of lymphotoxin alpha- and lymphtoxin beta receptor-deficient thymic medullary epithelial cells with their wild-type littermates, as well as with Aire-deficient and wild-type littermates. This was done in order to determine whether there was overlap in the effects of lymphotoxin and aire. Keywords: genetic modification

2007-10-23 | GSE8563 | GEO

Expression data from WT and Aire deficient mTECs

Project description:Aire is an important transcription regulator that mediates a role in central tolerance via promoting the promiscuous expression of tissue-specific antigens in the thymus. Although several mouse models of Aire-deficiency have been described, none has analysed the phenotype induced by a mutation that emulates the common 13bp deletion in human APECED by disrupting the first PHD domain in exon 8. Aire-deficient mice with a corresponding mutation showed some disturbance of the medullary epithelial compartment, but at the phenotypic level their T cell compartment appeared relatively normal in the thymus and periphery. An increase in the number of activated T cells was evident, and autoantibodies against several organs were detected. At the histological level, lymphocytic infiltration of several organs indicated the development of autoimmunity, though symptoms were mild and quality of life for Aire-deficient mice appeared equivalent to wild-type littermates, with the exception of male infertility. Vbeta and CDR3 length analysis suggested that each Aire-deficient mouse developed it own polyclonal autoimmune repertoire. Finally, given the prevalence of candidiasis in APECED patients, we examined the control of infection with Candida albicans in Aire-deficient mice. No increase in disease susceptibility was found for either oral or systematic infection. These observations support the view that additional genetic and/or environmental factors contribute substantially to the overt nature of autoimmunity associated with Aire mutations, even for mutations identical to those found in humans with APECED. Keywords: Gene expression comparison between genotypes In this experiment there are 5 samples altogether which consist of two biological replicates of Aire knock-out mTECs and 3 biological replicates of wild type mTECs.

2009-03-15 | E-GEOD-14365 | biostudies-arrayexpress

Expression data from WT and Aire deficient mTECs

2009-03-15 | GSE14365 | GEO

Transcription profiling of mouse ire-deficient and wild-type littermate thymic medullary epithelial cells

Project description:We compared gene expression profiles of aire-deficient and wild-type littermate thymic medullary epithelial cells. This was done in order to determine whether Aire's effects differed among strains, and also among individuals of the same strain. Experiment Overall Design: Individual thymi were digested with collagenase, dispase and DNAse, and meduallary epithelial cells with the phenotype CD45-G8.8+Ly51intMHCclasssIIhi were isolated by FACS.

2008-10-18 | E-GEOD-8564 | biostudies-arrayexpress

RNA-sequencing of Aire-ILC3 cells from wild-type and Aire-deficient mice

Project description:RNA-sequencing of Aire-ILC3 cells from wild-type and Aire-deficient mice

| PRJEB27961 | ENA

wild type and aire -/- murine meduallary thymic epithelial cells

Project description:Mice used were B6/129 F2's, 3-5 weeks of age, either wild type or with both copies of the autoimmune regulator gene (aire, GenBank #AF079536) disrupted. Thymi from five of these mice of both sexes were removed and pooled. After collagenase/dispase digestion, density gradient fractionation, and fluorescent antibody staining, cells with the phenotype CD45-, G8.8+, CDR1int and B7.1hi were FACS-sorted and total RNA was made from them. RNA was twice-amplified using a T7 polymerase-based method. Keywords: ordered

2002-09-19 | GSE85 | GEO

RNA-sequencing of Aire-ILC3 cells from wild-type and Aire-deficient mice

Project description:Autoimmune regulator (Aire) plays an indispensable role in the induction of central immune tolerance. We identify a novel subset of Rorγt-dependent innate lymphoid cell-type in secondary lymphoid organs, which presents endogenously generated antigens and contributes to peripheral T cell tolerance. In this experiment, transcriptomes of these Aire-ILC3 cells are characterized in wild-type Balb/C and Aire-/- Balb/C mice [Ramsey, C. et al. (2002) Hum Mol Genet 11:397-409] using RNA-seq method. To obtain the cells, peripheral lymph nodes were minced, enzymatically digested, and Aire-ILC3 cells were FACS-sorted as Lin-, MHCII+, CD80+, IL7Ra+ cells.

2019-03-14 | E-MTAB-7088 | biostudies-arrayexpress

AIRE-deficient CD8+CD28low regulatory T lymphocytes fail to control experimental colitis

Project description:Mutations in the gene encoding the transcription factor AutoImmune REgulator (AIRE) are responsible for the ‘Autoimmune PolyEndocrinopathy Candidiasis Ecodermal Dystrophy’ syndrome. AIRE directs expression of tissue restricted antigens in the thymic medulla and in lymph node stromal cells and thereby substantially contributes to induction of immunological tolerance to self-antigens. Data from experimental mouse models showed that AIRE-deficiency leads to impaired deletion of autospecific T cell precursors. However, a potential role for AIRE in the function of regulatory T cell populations, which are known to play a central role in prevention of immunopathology, has remained elusive. Regulatory T cells of CD8+CD28low phenotype efficiently control immune responses in experimental autoimmune and colitis models in mice. We here show that CD8+CD28low Treg from AIRE-deficient mice are transcriptionally and phenotypically normal, exert efficient suppression of in vitro immune responses, but completely fail to prevent experimental colitis in vivo. Our data therefore demonstrate that AIRE plays an important role in the in vivo function of a naturally occurring regulatory T cell population. Total RNA was extracted from CD8+CD28low regulatory T lymphocytes isolated from wildtype and Aire-deficient C57BL/6 mice for comparison of gene expression profiles.

2011-06-22 | E-GEOD-30129 | biostudies-arrayexpress

Transcription profiling of wild type and aire -/- murine meduallary thymic epithelial cells to study the immunological roles of aire protein in thymus.

2007-12-15 | E-GEOD-85 | biostudies-arrayexpress

Transcription profiling of mouse transgenic for Aire expressing pancreatic islets

Project description:The 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 Experiment Overall Design: 3-wk-old individual male RIP-Aire27 or non-transgenic littermates islets were isolated by gradient purification followed by hanpicking under a microscope for subsequent RNA purification, labeling and hybridization to Affymetrix arrays.

2008-10-25 | E-GEOD-12073 | biostudies-arrayexpress

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