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Expression profiling of ILC transitional populations and Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

ABSTRACT: Expression profiling of ILC transitional populations and Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

PROVIDER: PRJNA541315 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9019580.fastq.gz	Fastqsanger.gz
	SRR9019590.fastq.gz	Fastqsanger.gz
	SRR9019600.fastq.gz	Fastqsanger.gz
	SRR9019581.fastq.gz	Fastqsanger.gz
	SRR9019591.fastq.gz	Fastqsanger.gz

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Genome Wide Chromatin Mapping of Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

Project description:Innate lymphoid cells (ILCs) are tissue-resident lymphocytes subdivided into ILC1s, ILC2s and ILC3s based on core regulatory programs and signature cytokines secreted. ILCs exhibit functional plasticity: for instance, human IL-22-producing ILC3s convert into IFN-γ-producing ILC1-like in vitro. Whether this conversion occurs in vivo is unclear. Using flow cytometry, mass cytometry and scRNAseq, here we found that ILC3s and ILC1s occupy opposite ends of a spectrum including discrete subsets in human tonsils. RNA velocity suggested strong directionality toward ILC1s for one ILC3-ILC1 intermediate cluster. Clonal analysis revealed graded ability of ILC3-ILC1 subsets to convert into ILC1-like cells. When examined in humanized mice, ILC3 acquisition of ILC1 features showed tissue-dependency. In chromatin studies, Aiolos emerged as a nuclear factor that cooperates with Tbet to repress evolutionarily conserved regulatory elements active in ILC3s. The human intestine also exhibited an ILC3–ILC1 transitional population. We conclude that conversion of ILC3s to ILC1-like occurs in vivo in human tissues, and that tissue factors and Aiolos are crucial for this process.

2019-05-07 | GSE130774 | GEO

Microarray data from human ILC transitional populations

Project description:Microarray data from human ILC transitional populations

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RNA-Seq from human ILC transitional populations

Project description:RNA-Seq from human ILC transitional populations

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Expression profiling of ILC transitional populations and Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-05-07 | GSE130775 | GEO

Microarray data from human ILC transitional populations

2019-05-07 | GSE130773 | GEO

RNA-Seq from human ILC transitional populations

2019-05-07 | GSE130772 | GEO

Genome Wide Chromatin Mapping of Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

Project description:Genome Wide Chromatin Mapping of Aiolos accessability and H3K27ac histone modifications in transfected MNK3 cells

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Aiolos regulated genes in A549, lung carcinoma cells

Project description:Analysis of transcriptional profiling change comparing A549 cells expressing control empty vector and A549 cells expressing Aiolos. Results provide insight into molecular mechanisms underlying functional consequence of ectopic expression of Aiolos in solid cancer cells. Two-condition experiment, A549-empty vs. A549-Aiolos cells. Biological replicates: 3 control, 3 transfected, independently grown and harvested. One replicate per array.

2013-09-13 | E-GEOD-50812 | biostudies-arrayexpress

Transcription profiling of mouse bone marrow with Aiolos and OBF-1 deletions from 7 week old mice

Project description:The chromatin regulator Aiolos and the transcriptional coactivator OBF-1 have been implicated in regulating aspects of B cell maturation and activation. Mice lacking either of these factors have a largely normal early B cell development. However, when both factors are eliminated simultaneously a block is uncovered at the transition between pre-B and immature B cells, indicating that these proteins exert a critical function in developing B lymphocytes. In mice deficient for Aiolos and OBF-1, the numbers of immature B cells are reduced, small pre-BII cells are increased and a significant impairment in immunoglobulin light chain DNA rearrangement is observed. We identified genes whose expression is deregulated in the pre-B cell compartment of these mice. In particular, we found that components of the pre-BCR, such as the surrogate light chain genes l5l5 and VpreB, fail to be efficiently silenced in double-mutant mice. Strikingly, developmentally regulated nuclear repositioning of the l5l5 gene is impaired in pre-B cells lacking OBF-1 and Aiolos. These studies uncover a novel role for OBF-1 and Aiolos in controlling the transcription and nuclear organization of genes involved in pre-BCR function. OBF-1 or Aiolos or both were deleted and the gene expression profiles for these animals investigated using Affymetrix arrays Experiment Overall Design: Two control wildtype animals, then duplicates for each of the single Aiolos or OBF-1 mutants and further duplicates for the Aiolos/OBF-1 double mutants

2008-11-13 | E-GEOD-12356 | biostudies-arrayexpress

A Variant in Human AIOLOS Impairs Adaptive Immunity by Interfering with IKAROS

Project description:A missense mutation (G158R) in Aiolos, encoded by Ikzf3 gene, resulted in defective generation of B cells in mice. Pre-B cells were profoundly decreased in homozygous mutant mice. Heterozygous mutant mice showed milder B cell developmental defects, and B cells in the secondary lymphoid organs decreased. Genome-wide binding of Aiolos and Ikaros were altered in the thymus of homozygous Ikzf3 G158R mice. Our findings indicate that Aiolos-G158R hinders B cell development by interfering Ikaros' function via formation of heterodimers. A heterozygous missense variant (G159R) in AIOLOS, encoded by IKZF3 gene, resulted in impaired adaptive immunity, which predominantly manifested as profound B cell developmental defect. Genome-wide binding of wild-type AIOLOS and AIOLOS G159R mutant were examined in IKZF3 knock-out human pre-B cell line NALM-6, retrovirally transduced with doxycycline inducible wild-type AIOLOS or AIOLOS G159R. Changes in genome-wide binding and binding motif were observed for AIOLOS G159R mutant.

2021-05-01 | GSE167487 | GEO

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