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Transcriptomal comparison between group 2 innate lymphoid cells (ILC2s) in the murine small intestine (SI-ILC2s) and those in white adipose tissue (WAT-ILC2s)

ABSTRACT: Transcriptomal comparison between group 2 innate lymphoid cells (ILC2s) in the murine small intestine (SI-ILC2s) and those in white adipose tissue (WAT-ILC2s).

ORGANISM(S): Mus musculus

PROVIDER: GSE130530 | GEO | 2019/07/02

REPOSITORIES: GEO

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Transcriptomal comparison between group 2 innate lymphoid cells (ILC2s) in the murine small intestine (SI-ILC2s) and those in white adipose tissue (WAT-ILC2s)

Project description:Transcriptomal comparison between group 2 innate lymphoid cells (ILC2s) in the murine small intestine (SI-ILC2s) and those in white adipose tissue (WAT-ILC2s)

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Proteome of group 2 innate lymphoid cells (ILC2s) stimulated with IL33 and TL1A

Project description:We analyzed the total proteome of group 2 innate lymphoid cells (ILC2s) after different stimulation with interleukin-33 (IL-33), a cytokine playing a critical role in human asthma, and TL1A, a TNF-family cytokine also known to activate ILC2s. Upon combined stimulation with IL-33 plus TL1A, we show that lung ILC2s produce high amounts of IL-9 and acquire a transient ‘ILC9’ phenotype. This phenotype is characterized by simultaneous production of large amounts of type 2 cytokines (IL-5, IL-13 and IL-9), induction of the IL-2 receptor CD25 (Il2ra), and of the transcription factors IRF4, JunB and BATF, that form immune-specific complexes known to induce IL-9 expression.

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Expression data from naive, effector and memory-like ILC2s isolated from mouse lungs and those from effector and memory-like ILC2s isolated from mediastinal lymph node

Project description:Group 2 innate lymphoid cells (ILC2s) in the lung are stimulated by inhaled allergens. ILC2s do not directly recognize allergens but they are stimulated by cytokines including interleukin (IL)-33 released by damaged epithelium.Lung ILC2s, upon stimulation, produce T helper 2 cell-type cytokines inducing T cell independent allergic lung inflammation. We now report that lung ILC2s, upon activation by an allergen or IL-33, acquire the properties of memory cells. The activated ILC2s initially proliferate and secrete cytokines, followed by a contraction phase as they stop producing cytokines. Nevertheless, some persist long after the resolution of the inflammation and acquire intrinsic capacities to react to unrelated allergens more vigorously than naÃ¯ve ILC2s, thus mediating a severe allergic lung inflammation. Gene expression profiles of the previously activated ILC2s show a gene signature of memory T cells. These antigen non-specific memory ILC2s may explain why asthma patients are often sensitized to multiple allergens. ILC2s were isolated from mouse lungs from naive and IL-33 injected mice 4 days, 14 days and 4 months after the initial treatment. RNA was extracted from those ILC2 populations and analyzed for gene expression profiles. RNA was also extracted from ILC2s isolated from lung draining mediastinal lymph node (mLN) 4 days and 14 days after IL-33 treatment.

2016-06-30 | E-GEOD-81700 | biostudies-arrayexpress

Microarray transcription of murine lung and uterine group 2 innate lymphoid cells (ILC2s) cultured in vitro with or without 17beta-estradiol (estrogen, E2)

Project description:This experiment sought to determine whether estrogen could directly activate changes in gene transcription in lung and uterine ILC2s, whether such changes differed between lung and uterine ILC2s, and compared baseline gene expression between ILC2s from those organs. ILC2s, defined as lineage (CD3e, CD14, CD16/32 and B220) negative, CD25 positive and CD44 high lymphocytes, were sorted by flow cytometry from 8-12 week old BALB/c mice and cultured overnight in RPMI 1640 with 10% charcoal/dextran treated calf serum in the absence or presence of 100 ng/ml estrogen. RNA was extracted from the cells after culture.

2017-10-17 | E-MTAB-5789 | biostudies-arrayexpress

Expression data from naive, effector and memory-like ILC2s isolated from mouse lungs and those from effector and memory-like ILC2s isolated from mediastinal lymph node

Project description:Group 2 innate lymphoid cells (ILC2s) in the lung are stimulated by inhaled allergens. ILC2s do not directly recognize allergens but they are stimulated by cytokines including interleukin (IL)-33 released by damaged epithelium.Lung ILC2s, upon stimulation, produce T helper 2 cell-type cytokines inducing T cell independent allergic lung inflammation. We now report that lung ILC2s, upon activation by an allergen or IL-33, acquire the properties of memory cells. The activated ILC2s initially proliferate and secrete cytokines, followed by a contraction phase as they stop producing cytokines. Nevertheless, some persist long after the resolution of the inflammation and acquire intrinsic capacities to react to unrelated allergens more vigorously than naïve ILC2s, thus mediating a severe allergic lung inflammation. Gene expression profiles of the previously activated ILC2s show a gene signature of memory T cells. These antigen non-specific memory ILC2s may explain why asthma patients are often sensitized to multiple allergens.

2016-06-30 | GSE81700 | GEO

RNA-Seq analysis of mouse group 2 innate lymphoid cells (ILC2s) cultured with IL-33, IFN-g, and IL-27

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2023-06-30 | GSE174495 | GEO

RNA-Sequece Analysis of si-THAP7-AS1 and SI-NC IN 468 CELLS

Project description:RNA-seq was used to analyze the differential expression of mRNAs between si-THAP7-AS1 and si-NC468 cells.

2021-10-31 | GSE160685 | GEO

Human CD127 negative ILC2s show immunological memory.

Project description:Group 2 Innate Lymphoid Cells (ILC2s) are key players in type 2 immunity and contribute to maintaining homeostasis and responding to inflammation. ILC2s are implicated in the development of type 2 inflammation-mediated chronic disorders like asthma. While memory ILC2s have been identified in mouse, it is unknown whether human ILC2s can acquire immunological memory. Here, we demonstrate the persistence of CD45RO, a marker previously linked to inflammatory ILC2s, in resting ILC2s that have undergone prior activation. A high proportion of these cells concurrently reduce the expression of the canonical ILC marker CD127 in a tissue specific manner. Through isolation and in vitro stimulation of CD127- CD45RO+ ILC2s, we observed an augmented ability to proliferate and produce cytokines. CD127- CD45RO+ ILC2s are found in both healthy and inflamed tissues and display a gene signature of cell activation. Our findings suggest that human ILC2s can acquire innate immune memory and warrants a revision of the current strategies to identify human ILC2s.

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