Dataset Information

Transcriptome analysis of TH2 CD4(+) T cells differentiated from wild-type and NLRP3KO mice.

ABSTRACT: The Nod-like receptor NLRP3 is involved in the formation of NLRP3. Up to now, the immunological functions of NLRP3 independently of inflammasome is unclear. In this dataset containing 6 samples (TH0, TH2 cells at day 3 and day 6 in wild type or Nlrp3 deficient cells), we show that NLRP3 expression in CD4(+) T cells supports a T helper 2 (TH2) transcriptional program in a cell-intrinsic manner (raw and normalized data are accessible on Gene Expression Omnibus database under the number GSE54561, http://www.dtd.nlm.nih.gov/geo/query/acc.cgi?acc=GSE54561). Indeed, NLRP3 positively-regulated TH2 program independently of inflammasome formation. These data indicated that TH2 specific genes such as cMaf or Il4 were not induced in Nlrp3 deficient cells. These results demonstrate the capacity of NLRP3 to act as a key transcription factor in TH2 differentiation.

SUBMITTER: Bruchard M

PROVIDER: S-EPMC4583695 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Transcriptome analysis of TH2 CD4(+) T cells differentiated from wild-type and NLRP3KO mice.

Bruchard Mélanie M Boidot Romain R Ghiringhelli François F Végran Frédérique F

Genomics data 20150709

The Nod-like receptor NLRP3 is involved in the formation of NLRP3. Up to now, the immunological functions of NLRP3 independently of inflammasome is unclear. In this dataset containing 6 samples (TH0, TH2 cells at day 3 and day 6 in wild type or Nlrp3 deficient cells), we show that NLRP3 expression in CD4(+) T cells supports a T helper 2 (TH2) transcriptional program in a cell-intrinsic manner (raw and normalized data are accessible on Gene Expression Omnibus database under the number GSE54561, h ...[more]

PMID: 26484275

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Project description:Aims/hypothesisAntigen-specific therapy aims to modify inflammatory T cell responses in type 1 diabetes and restore immune tolerance. One strategy employs GAD65 conjugated to aluminium hydroxide (GAD-alum) to take advantage of the T helper (Th)2-biasing adjuvant properties of alum and thereby regulate pathological Th1 autoimmunity. We explored the cellular and molecular mechanism of GAD-alum action in the setting of a previously reported randomised placebo-controlled clinical trial conducted by Type 1 Diabetes TrialNet.MethodsIn the clinical trial conducted by Type 1 Diabetes TrialNet, participants were immunised with 20 μg GAD-alum (twice or three times) or alum alone and peripheral blood mononuclear cell samples were banked at baseline and post treatment. In the present study, GAD-specific T cell responses were measured in these samples and GAD-specific T cell lines and clones were generated, which were then further characterised.ResultsAt day 91 post immunisation, we detected GAD-specific IL-13+ CD4 T cell responses significantly more frequently in participants immunised with GAD-alum (71% and 94% treated twice or three times, respectively) compared with those immunised with alum alone (38%; p = 0.003 and p = 0.0002, respectively) accompanied by high secreted levels of IL-13, IL-4 and IL-5, confirming a GAD-specific, GAD-alum-induced Th2 response. Of note, GAD-specific, IL-13+ CD4 T cells observed after immunisation co-secreted IFN-γ, displaying a bifunctional Th1/Th2 phenotype. Single-cell transcriptome analysis identified IL13 and IFNG expression in concert with the canonical Th2 and Th1 transcription factor genes GATA3 and TBX21, respectively. T cell receptor β-chain (TCRB) CDR3 regions of GAD-specific bifunctional T cells were identified in circulating naive and central memory CD4 T cell pools of non-immunised participants with new-onset type 1 diabetes and healthy individuals, suggesting the potential for bifunctional responses to be generated de novo by GAD-alum immunisation or via expansion from an existing public repertoire.Conclusions/interpretationGAD-alum immunisation activates and propagates GAD-specific CD4 T cells with a distinctive bifunctional phenotype, the functional analysis of which might be important in understanding therapeutic responses.

Dataset Information

Transcriptome analysis of TH2 CD4(+) T cells differentiated from wild-type and NLRP3KO mice.

Publications

Transcriptome analysis of TH2 CD4(+) T cells differentiated from wild-type and NLRP3KO mice.

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