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Single-cell analysis of mouse plasmacytoid dendritic cells (pDCs) unravels their activation trajectory and their molecular regulation in vivo during a viral infection [FB5P-seq_C57Bl6]

ABSTRACT: The aim of the project is to understand the heterogeneity of murine plasmacytoid dendritic cells (pDC) for interferon I production. For this end we want to perform RNAseq on splenic pDC at ground state and also after infection of mice with MCMV at different time points.

ORGANISM(S): Mus musculus

PROVIDER: GSE151244 | GEO | 2020/07/07

REPOSITORIES: GEO

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Single-cell analysis of mouse plasmacytoid dendritic cells (pDCs) unravels their activation trajectory and their molecular regulation in vivo during a viral infection [Ss2_pDC1]

Project description:The aim of the project is to characterize the heterogeneity of murine plasmacytoid dendritic cells (pDCs) and to decipher their activation trajectory during a viral infection in vivo. To this end, individual splenic pDCs were transcriptionally profiled at ground state and at the time of their peak production of type I interferon (IFN-I) during mouse cytomegalovirus (MCMV) infection, with enrichment of IFN-I-producing pDCs based on the use of a reporter mouse strain.

2020-07-07 | GSE151246 | GEO

Single-cell analysis of mouse plasmacytoid dendritic cells (pDCs) unravels their activation trajectory and their molecular regulation in vivo during a viral infection [FB5P-seq_kinetic]

Project description:The aim of the project is to characterize the heterogeneity of murine plasmacytoid dendritic cells (pDCs) and to decipher their activation trajectory during a viral infection in vivo. To this end, individual splenic pDCs were transcriptionally profiled at ground state and at different times during mouse cytomegalovirus infection, with enrichment of IFN-I-producing pDCs based on the use of a reporter mouse strain and on their downregulation of LIFR.

2020-07-07 | GSE151245 | GEO

Single-cell analysis of mouse plasmacytoid dendritic cells (pDCs) unravels their activation trajectory and their molecular regulation in vivo during a viral infection [Ss2_pDC2]

Project description:The aim of the project is to characterize the heterogeneity of murine plasmacytoid dendritic cells (pDCs) and to decipher their activation trajectory during a viral infection in vivo. To this end, individual splenic pDCs were transcriptionally profiled at ground state and at the time of their peak production of type I interferon (IFN-I) during mouse cytomegalovirus infection, with enrichment of IFN-I-producing pDCs based on the use of a reporter mouse strain and on their down-regulation of LIFR.

2020-07-07 | GSE151247 | GEO

Dissecting the molecular programs governing interferon production by plasmacytoid dendritic cells during a viral infection in vivo

Project description:Plasmacytoid dendritic cells (pDC) are the major source of type I and type III interferons (IFN-I/III) during viral infections, in response to triggering of endosomal Toll Like Receptors (TLRs) 7 or 9 by viral single-stranded RNA or unmethylated CpG DNA, respectively. Interestingly, this function is restricted to a minor fraction of pDC (Zucchini et al. Int. Immunol. 2008). In this project, we aimed at identifying the molecular pathways involved in inducing IFN-I/III production in this minor faction of pDC during in vivo infection by the mouse cytomegalovirus (MCMV). To achive this goal, we infected with MCMV Ifnb1Eyfp mice, in which IFN-producing pDC can be detected by YFP expression (Scheu et al. PNAS 2008). Thanks to this model, we were able to sort three distinct subsets of pDC: CD86-YFP- (not activated, non IFN-producing), CD86+YFP- (activated, non IFN-producing) and CD86+YFP+ (activated, IFN-producing) and to perform microarray analysis. This allowed us to select genes differentially expressed among these three subsets and to mine these data in order to identify the related signaling pathways.

2020-07-07 | GSE150664 | GEO

Natural killer cell sensing of infected cells compensates deficient Toll-like receptor but not IFN-I activity for mouse resistance to cytomegalovirus

Project description:Plasmacytoid dendritic cells (pDC) are the major source of type I IFN (IFN-I) in vivo during Murine Cytomegalovirus (MCMV) infection. This response requires pDC-intrinsic MyD88-dependent signaling by Toll Like Receptors 7/9. Provided that they express appropriate recognition receptors such as Ly49H, Natural Killer (NK) cells can directly sense and kill MCMV-infected cells. While MyD88- and Ly49H-dependent responses can contribute to MCMV control, the objective is to understand the relative importance of these 3 mechanisms. In order to decipher the relative impact of MyD88- and Ly49H-dependent mechanisms during MCMV infection, we performed a genome-wide expression analysis on total spleen of Ly49H-/-MyD88+/+, Ly49H-/-MyD88-/-, Ly49H+/+MyD88+/+ and Ly49H+/+MyD88-/- BALB/c mice at different time points after MCMV infection (d0, d1,5, d2, d3 and d6). This study includes data from the spleen BALB/c mice, under steady-state or MCMV condition at different time points. 2 to 5 mice for each mouse strain for each time point were used, and were hybridized on 5 separate batches of gene chips.

2015-04-24 | E-GEOD-62729 | biostudies-arrayexpress

Single cell RNA sequencing-based comparison of mouse splenic pDC, pDC-like cells, tDC, cDC1 and cDC2 at steady state and during a viral infection

Project description:Plasmacytoid dendritic cells (pDC) are the main source of type I interferon (IFN) during viral infections. Their other functions are debated, due to a lack of tools to identify and target them in vivo without affecting pDC-like cells and transitional DC (tDC), which harbor overlapping phenotypes and transcriptomes but a higher efficacy for T cell activation. To overcome this bottleneck, we designed, generated and validated a pDC-Tomato reporter mouse. We bred pDC-Tomato with Zbtb46 GFP mice to yield the he ZeST mouse strain that enabled transcriptomic profiling of all splenic DC types, by single cell RNA sequencing, both at steady state and during the course of the infection with mouse cytomegalovirus (MCMV). Analyses of the transcriptomic dataset unraveled diverging activation of pDC-like cells vs tDC during the infection. This dataset and the associated specific gene modules will be useful to delineate the physiological functions of pDC versus other DC types.

2023-01-26 | GSE196720 | GEO

Continuous expression of the transcription factor E2-2 maintains the cell fate of mature plasmacytoid dendritic cells

Project description:This SuperSeries is composed of the following subset Series: GSE24726: Gene expression profile of mature plasmacytoid dendritic cells (PDC) after the deletion of transcription factor E2-2 GSE24740: Binding targets of transcription factor E2-2 in human plasmacytoid dendritic cells Refer to individual Series

2010-12-21 | E-GEOD-24785 | biostudies-arrayexpress

Natural killer cell sensing of infected cells compensates deficient Toll-like receptor but not IFN-I activity for mouse resistance to cytomegalovirus

2015-04-24 | GSE62729 | GEO

Common lymphoid progenitor derivation of plasmacytoid dendritic cells is mediated by Bcl11a

Project description:Plasmacytoid dendritic cells (pDC) specialize in type I interferon production to coordinate innate and adaptive immunity. We identify two pDC subsets in vivo, evaluate their genome-wide expression, and demonstrate a developmental requirement for Bcl11a to provide insight into this enigmatic cell type.

2018-07-01 | GSE105827 | GEO

Common lymphoid progenitor derivation of plasmacytoid dendritic cells is mediated by Bcl11a

2023-06-01 | GSE225768 | GEO

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