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Characterization of microRNA signature in activated CD4+ T, polyclonal Th17 (Th17 poly), OVA-specific Th17 (Th17 Ag-sp) cell skewed cultures

ABSTRACT: Characterization of microRNA signature in activated CD4+ T, polyclonal Th17 (Th17 poly), OVA-specific Th17 (Th17 Ag-sp) cell skewed cultures

PROVIDER: PRJNA432539 | ENA |

REPOSITORIES: ENA

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Characterization of microRNA signature in activated CD4+ T, polyclonal Th17 (Th17 poly), OVA-specific Th17 (Th17 Ag-sp) cell skewed cultures

Project description:To determine specific miRNAs for Th17 cells, we performed comparative miRNA screening of activated CD4+ T, polyclonal Th17 (Th17 poly) and OVA-specific Th17 (Th17 Ag-sp) cell skewed cultures or Th17 Ag-sp sorted cells. The expression of miRNAs analyzed by microarray revealed 27 miRNAs exclusively expressed in culture or sorted Th17 Ag-sp cell subset.

2021-01-01 | GSE109992 | GEO

Differentially expressed microRNAs in antigen-specific Th17 cell cultures from WT and CD69KO mice

Project description:To explore miRNA signature in T cells during moderate (wild type BALB/c) and severe (cd69-/- in BALB/c background) EAM development, we performed microarray experiments with OVA-specific Th17 (Th17 Ag-sp) cell skewed cultures. The comparison of miRNA profiles from Th17 Ag-sp subsets of cd69-/- and wild type mice, with severe and mild EAM respectively, revealed a number of deregulated miRNAs.

2021-01-01 | GSE109993 | GEO

In vivo polarization of Ovalbumin (OVA)-specific CD4 (OTII) T cells

Project description:There remains a need for analysis of CD4 helper T cells differentiation in vivo. To this end ovalbumin (OVA)-specific CD4 (OTII) T cells transferred into congenic mice were studied. Live attenuated OVA-expressing Salmonella (SalOVA) induce T-bet and IFN-g in OTII cells, while alum-precipitated OVA (alumOVA) induces GATA-3 and IL-4. Although 70% of alumOVA-responding OTII cells express GATA-3, only 7% produce IL-4. Thus Th2-polarization defined solely by IL-4 production does not recognize the diversity of GATA-3-expressing effectors. Low-density arrays were designed to assess the expression of 384 genes by real-time RT-PCR. Extensive early diversification occurred in both responses. SalOVA selectively induced many chemokines and pro-inflammatory cytokines, while alumOVA induced few Th2-associated cytokines. Several cytokines and molecules associated with Th17 cells and follicular helper cells were also induced by both antigens. The transcription factor Helios was exclusively induced in alumOVA-responding OTII cells, and critically not in standard in vitro Th2-polarization systems. Early synchronous up-regulation of Helios and GATA-3 mRNA is paralleled at protein level with largely coincident localization in specific nuclear foci of OTII cells responding to alumOVA. This appears to be consistent with a key role for both transcription regulators in the direction of Th2 responses in vivo. Keywords: In vivo T cell polarization Ovalbumin (OVA)-specific CD4 (OTII) T cells were transferred into C57BL/6 mice that were immunized either with live attenuated OVA-expressing Salmonella (Sal) or with alum-precipitated OVA (alum), or not (Naïve). Gene expression assay was performed on FACS sorted OTII cells (Naïve, Sal, Alum). OTII cells were purified from three independent groups of ten naïve, or SalOVA-immunized or alumOVA-immunized mice.

2008-06-27 | E-GEOD-7481 | biostudies-arrayexpress

Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor I

Project description:Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor I

| PRJNA781569 | ENA

Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor II

Project description:Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor II

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Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor III

Project description:Translational implications of Th17-skewed inflammation due to genetic deficiency of a cadherin stress sensor III

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CIP2A negatively regulates Th17 differentiation

Project description:Interleukin 17 (IL-17) producing T helper 17 (Th17) cells are critical drivers of pathogenesis in a variety of autoimmune and inflammatory diseases. Strategies to mitigate excessive Th17 response thus remain an attractive target for immunotherapies. Here we report that Cancerous Inhibitor of Protein Phosphatase 2A (CIP2A) regulates IL-17 production by Th17 cells in human and mouse. Using CIP2A knock-out (KO) mice and siRNA-mediated CIP2A silencing in human primary CD4+ T cells, we demonstrated that CIP2A silencing results in a significant increase in IL-17 production. Interestingly, CIP2A deficient Th17 cells were characterized by increased strength and duration of STAT3 (Y705) phosphorylation. Genome-wide gene expression profile as well as the p-STAT3 (Y705) interactome of CIP2A deficient Th17 cells identified that CIP2A regulates the strength of the interaction between Acylglycerol kinase (AGK) and STAT3, and thereby, modulates STAT3 phosphorylation as well as expression of IL-17 in Th17 cells. Our results uncover the physiological function of CIP2A in Th17 cells and provides new opportunities for therapeutic intervention in Th17 cell mediated diseases.

2020-05-26 | PXD010612 | Pride

miR-21 OVA Lung

Project description:Lungs from miR-21+/+ and miR-21-/- mice sensitized with OVA/Alum and challenged with either saline or OVA.

2011-08-25 | E-MEXP-3119 | biostudies-arrayexpress

Next Generation Sequencing of splenic- and CNS-infiltrating OT-1 cells in ODC-OVA mice upon LCMV-OVA and Lm-OVA infection

Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goal of this study is to compare the transcriptome of OT-1 cells during priming (3 days after infection) and during effector phase ( 7 days after infection) in ODC-OVA mice after LCMV-OVA and Lm-OVA infection

2018-05-17 | GSE93805 | GEO

Immunotherapeutic effects of intratumoral nanoplexed Poly I:C (B16-OVA cell line)

Project description:Poly I:C is a powerful immune adjuvant as a result of its agonist activities on TLR-3, MDA5 and RIG-I. Intratumoral administration is conceivably safer than systemic delivery and allows concentrate proinflammatory adjuvanticity in the tumor microenvironment and tumor-draining lymphoid tissue. BO-112 is a nanoplexed formulation of Poly I:C complexed with polyethylenimine that causes tumor cell apoptosis showing immunogenic cell death features and that upon intratumoral release results in more prominent tumor infiltration by T lymphocytes. Intratumoral treatment of subcutaneous tumors derived from MC38, 4T1 and B16F10 with BO-112 leads to remarkable local disease control mediated by CD8+ T lymphocytes, as concluded from selective depletion experiments. Some degree of control of non-injected tumor lesions upon BO-112 intratumoral treatment was found in mice bearing bilateral B16OVA melanomas, that was enhanced when co-treated with systemic anti-CD137 and anti-PD-L1 immunomodulatory mAbs. More abundant CD8+ T lymphocytes were found in tumor-draining lymph nodes and in the tumor microenvironment following intratumoral treatment with BO-112. Enhanced numbers of tumor-specific CTLs recognizing melanosomal antigens and ovalbumin were readily detected among them. Genome-wide transcriptome analyses of injected tumor lesions were consistent with a marked upregulation of the type-I interferon pathway. Intratumorally delivered BO-112 is being tested in cancer patients (NCT02828098) and our results in mice suggest prominent anti-tumor local control through its proimmune effects. To compare the in-vitro and in vivo transcriptional profile induced by BO-112, B16-OVA cell lines were incubated with BO-112 for 24h. BO-112 induces a specific transcriptional profile in B16-OVA cell cultures. Key immunoregulatory genes were found to be differentially expressed between BO-112 and Vehicle-incubated B16-OVA cells.

2019-05-15 | GSE116075 | GEO

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