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RNA-binding protein RBM3 negatively regulates innate lymphoid cells (ILCs) and lung inflammation

ABSTRACT: RNA-binding protein RBM3 negatively regulates innate lymphoid cells (ILCs) and lung inflammation

PROVIDER: PRJNA649420 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12343038_1.fastq.gz	Fastqsanger.gz
	SRR12343038_2.fastq.gz	Fastqsanger.gz
	SRR12343039_1.fastq.gz	Fastqsanger.gz
	SRR12343039_2.fastq.gz	Fastqsanger.gz
	SRR12343040_1.fastq.gz	Fastqsanger.gz

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RNA-binding protein RBM3 negatively regulates innate lymphoid cells (ILCs) and lung inflammation

Project description:Innate lymphoid cells (ILCs) promote lung inflammation in diseases such as asthma through cytokine production. RNA-binding proteins (RBPs) are critical post-transcriptional regulators of cellular function though the role of RBPs in innate lymphoid cells is unknown. Here, we demonstrate that RNA-binding motif 3 protein (RBM3) is one of the most highly expressed RBPs in Thy1.2+ lung ILCs after fungal allergen challenge and is further induced by epithelial cytokines TSLP and IL-33 in both human and mouse ILCs. Single (rbm3-/-) and double (rbm3-/-rag2-/-) knockout mice exposed via the airway to the asthma-associated fungal allergen Alternaria alternata displayed increases in eosinophilic lung inflammation and ILC activation compared to control mice. In addition to increased Th2 cytokine production, rbm3-/- ILCs produced elevated IL-17A. The negative regulation by RBM3 in ILC responses was direct as purified rbm3-/- ILCs were hyperinflammatory in vitro and in vivo after stimulation with IL-33. Transcriptomic analysis by RNA-sequencing of rbm3-/- lung ILCs showed increased type 2 and 17 cytokines as well as global expression differences in critical cytokines, receptors, transcription factors, and survival transcripts compared with WT ILCs. Importantly, these transcript changes were independent of the numbers of AU-rich elements (AREs) which RBM3 is known to bind. Thus, regulation of ILC responses by RNA-binding proteins offers novel mechanistic insight into lung ILC biology and ILC-driven inflammatory diseases.

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Single cell RNA-sequencing of human tonsil Innate lymphoid cells (ILCs)

Project description:Single cell RNA-sequencing of human tonsil Innate lymphoid cells (ILCs) from three independent tonsil donors. Sequencing libraries were prepared from FACS sorted individual ILCs with the Smart-Seq2 protocol (Picelli et al. Nature Methods 2013)

2016-01-27 | E-GEOD-70580 | biostudies-arrayexpress

Single cell RNA-sequencing of human tonsil Innate lymphoid cells (ILCs)

Project description:Single cell RNA-sequencing of human tonsil Innate lymphoid cells (ILCs) from three independent tonsil donors.

2016-01-27 | GSE70580 | GEO

The transcription factor GATA3 is critical for the development of all IL-7Ra-expressing innate lymphoid cells (ILCs) and maintenance of type 2 ILCs

Project description:Innate lymphoid cells (ILCs) play critical roles during innate immune responses to pathogens and lymphoid organ development. IL-7Ra+ ILC subsets, similar to T helper (Th) cell subsets, produce distinctive effector cytokines. The molecular control of IL-7Ra+ ILC development and maintenance has yet to be dissected. Here we report that GATA3 is indispensable for the development of all IL-7Ra+ ILC subsets and T cells. Gata3 conditional deficient mice have no lymph nodes and are susceptible to Citrobactor rodentium infection. Genome-wide gene analyses indicate that GATA3 regulates similar set of cytokines and receptors in ILC2s and Th2 cells and is critical for the maintenance of ILC2s. Thus, GATA3 plays parallel roles in establishing and regulating both adaptive and innate lymphocytes. To identify GATA3 regulated genes in type 2 innate lymphoid cells by tamoxifen-mediated acute deletion of Gata3 gene.

2014-03-13 | E-GEOD-47851 | biostudies-arrayexpress

Gene expression profiling of small intestine (SI) NKp46+RORgt+ and NKp46+RORgt- Innate Lymphoid Cells (ILCs)

Project description:The aim of this study was to analyze the global transcriptional profiles of small intestine (SI) Innate Lymphoid Cells (ILCs) expressing the NK cell marker NKp46. Based on differential expression of the RORgt transcription factor SI NKp46+ ILCs can be divided in NKp46+RORgt- and NKp46+RORgt+ cells. While NKp46+RORgt- cells produce IFN-g, like conventional Natural Killer (NK) cells, NKp46+RORgt+ cells secrete IL-22, like Lymphoid Tissue inducer (LTi) cells. We compared the global transcriptional profiles of both NKp46+RORgt- and NKp46+RORgt+ cells to conventional splenic NK cells and to SI NKp46-RORgt+ cells, which contain adult LTi cells. By following this approach, we showed that SI NKp46+RORγt- ILCs correspond to SI NK cells. We also identified a transcriptional program conserved in adult SI NKp46+RORγt+, NKp46-RORγt+ ILCs and fetal LTi. The various ILC cell populations analyzed in this study were isolated from C57BL/6 RORc(gt)+/GFP reporter mice. SI NKp46+RORγt- (NKp46+GFP-) cells, SI NKp46+RORγt+ cells (NKp46+GFPlow and NKp46+GFPhigh cells) and NKp46-RORγt+ ILCs, including adult LTi cells , were sorted by flow cytometry from CD3- lamina propria cells of small intestine (SI) of RORc(γt)+/GFP reporter mice . Splenic NKp46+RORγt- (NKp46+GFP-) cells were also sorted as the reference for conventional NK cells. Two replicates of each populations were produced and analyzed.

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Microarray of skin innate lymphoid cells (ILCs) of CCR10+/EGFP and Rag1-/-CCR10+/EGFP mice

Project description:We previously found that while CCR10+ ILCs are dominant in the healthy skin, they differentiate into CCR10- ILCs in the skin of mice with various dysregulated or inflammatory conditions, such as T/B cell-deficient Rag1-/- mice. These suggest that CCR10- ILCs are activated effector cells in response to altered skin environments. To gain clues about the functional mechanism and regulation of the ILC activation in the skin, we compared gene expression profiles of CCR10+ skin ILCs of wild-type (WT) mice versus CCR10- or CCR10low skin ILCs of WT and Rag1-/- mice using microarray analyses. Skin innate lymphoid cells were isolated by BD FACSAria sorting system. The microarry was perfomanced by Immunological Genome Project using Affymetrix arrays and used for analysis of gene expresssion of CCR10+ ILCs and CCR10- ILCs in different mice species as indicated.

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Gene expression profiling of small intestine (SI) NKp46+RORgt+ and NKp46+RORgt- Innate Lymphoid Cells (ILCs)

2011-06-20 | GSE29777 | GEO

Group 3 innate lymphoid cells continuously require the transcription factor GATA3 after commitment

Project description:GATA3 is indispensable for the development of all IL-7RÎ±-expressing innate lymphoid cells (ILCs) and maintenance of type 1 ILCs (ILC1s) and type 2 ILCs (ILC2s). However, the importance of low GATA3 expression in type 3 ILCs (ILC3s) is still elusive. Here, we report that GATA3 regulates homeostasis of ILC3s by controlling IL-7RÎ± expression. In addition, GATA3 is critical for the development of NKp46+ ILC3 subset partially through regulating the balance between T-bet and RORÎ³t. Genome-wide analyses indicate that while GATA3 positively regulates CCR6+ and NKp46+ ILC3 subset-specific genes in respective lineages, it negatively regulates CCR6+ ILC3-specific genes in NKp46+ ILC3s. Furthermore, GATA3 regulates IL-22 production in both CCR6+ and NKp46+ ILC3s. Thus, low GATA3 expression is critical for the development and function of ILC3 subsets. To identify GATA3 regulated genes in total ILC3s with RNA-Seq; To identify unique genes expressed by CCR6+ ILC3 or NKp46+ ILC3 and GATA3 regulated genes within these two ILC3 subsets with RNA-Seq; To identify GATA3 direct binding sites in ILC3s, ILC2s and Th2 cells with ChIP-Seq.

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Transcriptional profiles of human circulating innate lymphoid cells and CD4 T helper cells

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The transcription factor GATA3 is critical for the development of all IL-7Ra-expressing innate lymphoid cells (ILCs) and maintenance of type 2 ILCs

2014-03-13 | GSE47851 | GEO