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Neuroprotective protein ADNP-dependent histone remodeling complex promotes Th2 immune cell differentiation (scRNA-Seq)

ABSTRACT: Type-2 immune responses are critical in tissue homeostasis, anti-helminth immunity and allergy. Th2 cells produce interleukin (IL)-4, IL-5 and IL-13 from the type-2 gene cluster under regulation by transcription factors (TFs) including GATA3. To better understand this system we performed CRISPR-Cas9 screens targeting 1131 TFs during Th2 cell differentiation. We discovered that ADNP is indispensable for immune reactions to allergen. Mechanistically, ADNP performs a previously unappreciated role in gene activation forming a critical bridge in the transition from pioneer TFs to chromatin remodelling by recruiting CHD4 and BRG1. Although GATA3 and AP-1 bound the type-2 cytokine locus in the absence of ADNP, they were unable to initiate histone acetylation or DNA accessibility, resulting in highly impaired type-2 cytokine expression. Similar ADNP-dependent regulation was observed for the Maf and Il4ra genes which are known regulators of Th2 differentiation. Our results demonstrate an important role for ADNP in promoting immune cell specialization.

ORGANISM(S): Mus musculus

PROVIDER: GSE231522 | GEO | 2023/06/06

REPOSITORIES: GEO

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Neuroprotective protein ADNP-dependent histone remodeling complex promotes Th2 immune cell differentiation (RNA-Seq)

Project description:Type-2 immune responses are critical in tissue homeostasis, anti-helminth immunity and allergy. Th2 cells produce interleukin (IL)-4, IL-5 and IL-13 from the type-2 gene cluster under regulation by transcription factors (TFs) including GATA3. To better understand this system we performed CRISPR-Cas9 screens targeting 1131 TFs during Th2 cell differentiation. We discovered that ADNP is indispensable for immune reactions to allergen. Mechanistically, ADNP performs a previously unappreciated role in gene activation forming a critical bridge in the transition from pioneer TFs to chromatin remodelling by recruiting CHD4 and BRG1. Although GATA3 and AP-1 bound the type-2 cytokine locus in the absence of ADNP, they were unable to initiate histone acetylation or DNA accessibility, resulting in highly impaired type-2 cytokine expression. Similar ADNP-dependent regulation was observed for the Maf and Il4ra genes which are known regulators of Th2 differentiation. Our results demonstrate an important role for ADNP in promoting immune cell specialization.

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2008-06-12 | E-GEOD-4068 | biostudies-arrayexpress

Bcl11b- and GATA3-mediated gene regulation in Th2 cells

Project description:GATA-binding protein 3 (GATA3) acts as the master transcription factor for type 2 T helper (Th2) cell differentiation and function. However, it is still elusive how GATA3 function is precisely regulated in Th2 cells. Here, we report that the transcription factor B cell lymphoma 11b (Bcl11b), a previously unknown component of GATA3 transcriptional complex, is involved in GATA3-mediated gene regulation. Bcl11b binds to GATA3 through protein-protein interaction, and they co-localize at many important cis-regulatory elements in Th2 cells. The expression of type 2 cytokines, including IL-4, IL-5 and IL-13, is up-regulated in Bcl11b-deficient Th2 cells both in vitro and in vivo; such up-regulation is completely GATA3-dependent. Genome-wide analyses of Bcl11b- and GATA3-regulated gene (from RNA-Seq), co-binding pattern (from ChIP-Seq), and Bcl11b-mediated epigenetic changes (in H3K27ac and DHSs) suggest that GATA3/Bcl11b complex is involved in limiting Th2 gene expression, as well as in inhibiting non-Th2 gene expression. Thus, Bcl11b controls both GATA3-mediated gene activation and repression in Th2 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

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

Priming for Th2 differentiation requires IL-2-mediated induction of IL-4 receptor alpha chain expression

Project description:Th2 cells enable humoral immunity and host-defense to parasites. Whereas IL-4 drives Th2 differentiation and IL-2 is important later in this process by augmenting IL4 chromatin accessibility, we demonstrate that IL-2 serves an essential early role in regulating IL-4R? expression by inducing binding of Stat5a and Stat5b to the IL4ra locus, with sustained binding during Th2 differentiation. Although IL-4 induces IL-4R? expression, TCR-induced IL-4R? expression was unexpectedly normal in ILr-/- but profoundly diminished in IL2-/- T cells. Remarkably, enforced IL-4R? expression rescued Th2 differentiation in IL2-/- cells. These results reveal a novel function for IL-2, with IL-2 via Stat5 providing an early signal for IL4ra induction, thereby priming cells for Th2 differentiation and promoting/maintaining IL-4R? expression in Th2-committed cells. ChIP-seq experiments for Stat5a and Stat5b with an IgG control experiment for 8hr, 13hr and 2 rounds of Th2 differentiation. Keywords: ChIP-seq, Illumina, Th2 differentiation, Stat ChIP-seq experiments for Stat5a and Stat5b with an IgG control experiment for 8hr, 13hr and 2 rounds of Th2 differentiation. There are a total of 22 lanes of data for the three samples across the three time points.

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