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Genome-wide expression study of the responses of murine NK cells and dendritic cell subsets to MCMV infection

ABSTRACT: Murine Cytomegalovirus (MCMV) infection leads to the activation of various immune cells, including dendritic cells (DCs) and Natural Killer (NK) cells. This activation is partly driven by innate cytokines including IFN-I, which are induced early after infection. The objective was to address the role of different innate cytokines in shaping DC subsets and NK cell responses, in particular the role of cell intrinsic responses to IFN-I. In order to decipher the specific impact of cell-intrinsic IFN-I on cell subsets, we performed a genome-wide expression analysis on CD45.1 WT and CD45.2 IFNAR-/- splenic conventional DC (cDC) subsets and NK cells isolated from C57BL/6 [CD45.1 WT / CD45.2 IFNAR-KO] mixed bone marow chimera mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE39555 | GEO | 2012/10/17

SECONDARY ACCESSION(S): PRJNA171117

REPOSITORIES: GEO

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Genome-wide expression study of the responses of murine NK cells and dendritic cell subsets to MCMV infection

Project description:Murine Cytomegalovirus (MCMV) infection leads to the activation of various immune cells, including dendritic cells (DCs) and Natural Killer (NK) cells. This activation is partly driven by innate cytokines including IFN-I, which are induced early after infection. The objective was to address the role of different innate cytokines in shaping DC subsets and NK cell responses, in particular the role of cell intrinsic responses to IFN-I. In order to decipher the specific impact of cell-intrinsic IFN-I on cell subsets, we performed a genome-wide expression analysis on CD45.1 WT and CD45.2 IFNAR-/- splenic conventional DC (cDC) subsets and NK cells isolated from C57BL/6 [CD45.1 WT / CD45.2 IFNAR-KO] mixed bone marow chimera mice. This study includes data from cDC subsets (CD8a and CD11b) and NK cells purified by flow cytometry sorting from the spleen of bone marrow chimera (BMC) mice, under steady-state or MCMV condition. Two independent replicates were made for each cell type, from two independent pools of spleens from uninfected or d1.5 MCMV-infected BMC 5-8 mice, and were hybridized on 3 separate batches of gene chips.

2012-10-17 | E-GEOD-39555 | biostudies-arrayexpress

Genome-wide expression study of the early/innate responses of murine B and T cells to MCMV infection

2013-04-03 | GSE45365 | GEO

Genome-wide expression study of the early/innate responses of murine B and T cells to MCMV infection

Project description:Murine Cytomegalovirus (MCMV) infection leads to early activation of various immune cells, including B and T lymphocytes, before the actual initiation of antigen-specific adaptive immunity. This activation is partly driven by innate cytokines, including type I interferon (IFN), which are induced early after infection. The objective of this study was to address the role of type I IFN in shaping early/innate B and T cell responses to a primary acute viral infection. In order to decipher the specific impact of IFN-I on cell subsets, we performed a genome-wide expression analysis on WT splenic B and CD8 T lymphocytes isolated from C57BL/6 [CD45.1 WT / CD45.2 IFNAR-KO] mixed bone marrow chimera mice. This study complements series GSE39555, which focused on early responses of NK cells and of the two subsets of conventional dendritic cells. This study includes data from B and CD8 T lymphocytes purified by flow cytometry sorting from the spleen of bone marrow chimera (BMC) mice, under steady-state or MCMV conditions. Two independent replicates were made for each cell type, from two independent pools of spleens from uninfected or d1.5 MCMV-infected BMC 5-8 mice, and were hybridized on 3 separate batches of GeneChips.

2013-04-03 | E-GEOD-45365 | biostudies-arrayexpress

Genome-wide expression study of the responses of murine NK cells and dendritic cell subsets after poly(I:C) injection

Project description:The injection of the pathogen-associated molecular pattern Polyinosinic-polycytidylic acid (poly(I:C)) leads to the activation of various immune cells, including dendritic cells (DCs) and Natural Killer (NK) cells. This activation is due to different innate cytokines produced early after injection, in particular IFN-I. The objective of the study was to compare the pattern of expression of IFN-I stimulated genes between DC and NK cells. The project focused on a specific subset of conventional DC, CD8a DC, which responsiveness to IFN-I determines the capacity to activate CD8 T cells by cross-presentation of exogenous antigens. To identify the responses to IFN-I selectively induced in CD8a+ DC, we compared their gene expression profile to that of NK cells, using gene chips, before and after poly(I:C) stimulation. This study includes data from CD8a+ cDCs and NK cells purified by flow cytometry from the spleen of WT C57BL/6 mice, under steady-state conditions or 3 hours after administration of 100 ug poly(I:C) by intravenous injection. Two independent replicates were made for each cell type.

2012-10-17 | E-GEOD-39556 | biostudies-arrayexpress

Real-time quantitative PCR analysis reveals high expression of activin A during NK-DC interactions

Project description:The interaction of natural killer (NK) cells with dendritic cells (DC) results in reciprocal cell activation through the interaction of membrane proteins and the release of soluble factors. Here we report that in NK-DC cocultures, among a set of 84 cytokines investigated, activin A was the second highest induced gene, with CXCL8 being the most upregulated one. Activin A is a member of the TGF-M-NM-2 superfamily and was previously shown to possess both pro- and antiinflammatory activities. In NK-DC cocultures, the induction of activin A required cell contact and was dependent on the presence of proinflammatory cytokines (i.e. IFN-M-NM-3, TNF-M-NM-1 and GM-CSF) as well as on NK cell-mediated DC killing. CD1+ DC were the main activin A producer cells among myeloid blood DC subsets. In NK-DC cocultures, inhibition of acitivn A by follistatin, a natural inhibitory protein, or by a specific blocking antibody, resulted in the upregulation of proinflammatory cytokine release (i.e. IL-6, IL-8, TNF-M-NM-1) by DC and in the increase of DC maturation. In conclusion, our study reports that activin A, produced during NK-DC interactions, represents a relevant negative feedback mechanism that might function to prevent excessive immune activation by DC. Human CD14 positive monocytes were differentiated to DC in vitro in the presence of IL-4 (20 ng/ml) and GM-CSF (50 ng/ml) for 6 days. Immature DC were then cocultured with allogeneic IL-15-activated NK cells (at 1:1 NK:DC ratio) for 0, 2 and 6 hrs. RNA was obtained from three independent coculture experiments. Equal amount of total RNA from each experiment was pooled prior to gene expression analysis. The gene expression of common cytokines was quantified using an RT2 Profiler PCR Array (Qiagen).

2013-11-13 | E-GEOD-52306 | biostudies-arrayexpress

Genome-wide expression study of the responses of murine NK cells and dendritic cell subsets after poly(I:C) injection

2012-10-17 | GSE39556 | GEO

Real-time quantitative PCR analysis reveals high expression of activin A during NK-DC interactions

Project description:The interaction of natural killer (NK) cells with dendritic cells (DC) results in reciprocal cell activation through the interaction of membrane proteins and the release of soluble factors. Here we report that in NK-DC cocultures, among a set of 84 cytokines investigated, activin A was the second highest induced gene, with CXCL8 being the most upregulated one. Activin A is a member of the TGF-β superfamily and was previously shown to possess both pro- and antiinflammatory activities. In NK-DC cocultures, the induction of activin A required cell contact and was dependent on the presence of proinflammatory cytokines (i.e. IFN-γ, TNF-α and GM-CSF) as well as on NK cell-mediated DC killing. CD1+ DC were the main activin A producer cells among myeloid blood DC subsets. In NK-DC cocultures, inhibition of acitivn A by follistatin, a natural inhibitory protein, or by a specific blocking antibody, resulted in the upregulation of proinflammatory cytokine release (i.e. IL-6, IL-8, TNF-α) by DC and in the increase of DC maturation. In conclusion, our study reports that activin A, produced during NK-DC interactions, represents a relevant negative feedback mechanism that might function to prevent excessive immune activation by DC.

2013-11-13 | GSE52306 | GEO

Langerhans cell RNAseq

Project description:CD45.1 bone marrow cells were transplanted into irradiated CD45.2 host to generate bone marrow chimera mice. Skin langerhans cells and other dendritic cell subsets were sorted from chimera mice and sequenced.

2021-03-22 | GSE139877 | GEO

B cell-intrinsic STAT6 controls the germinal center response in type 2 immunity

Project description:By investigating the germinal center (GC) formation in STAT6ko/WT bone marrow-mixed chimera we found that GC formation in type 2 immune responses is dependent on B cell intrinsic expression of IL-4/IL-13-induced genes. We therefore used microarrays to find Stat6 dependent genes that are important for germinal center formation and/or organization after infection with the nematode Nippostrongylus brasiliensis (N. brasiliensis). Bone marrow of STAT6ko (CD45.2+) and WT (CD45.1+) were mixed and injected in lethaly irradiated WT (CD45.1+) mice. After 8 weeks, 5 Bone marrow-mixed chimera were infected with N. brasiliensis and draining lymph nodes were collected at day 14 after the infection and pooled. RNA was isolated from sort-purified CD45.1+ or CD45.2+ GC B cells (B220+CD38loGL-7hi).

2014-05-26 | E-GEOD-47679 | biostudies-arrayexpress

Gene expression analysis of CD4+ and CD4- ILC1 subsets by RNAseq

Project description:Innate lymphoid cell (ILC) subsets that mirror helper T cells in their effector cytokine profiles have recently emerged as central players in both homeostatic and inflammatory conditions. Like their Th1, Th2 and Th17/Th22 helper T cell counterparts, ILC subsets are categorized based on their expression of specific transcription factors and effector cytokines: group 1 ILC (ILC1) express T-bet and IFN-Î³; group 2 ILC (ILC2) express GATA-3 and type 2 effector cytokines such as IL-13 and IL-5; and group 3 ILC (ILC3) express RORgt and the cytokines IL-22 and/or IL-17. Under this nomenclature, natural killer (NK) cells and lymphoid tissue inducers (LTi) are considered ILC1 and ILC3, respectively. ILC1 contain both CD4+ and CD4- populations, but whether this phenotypic characteristic reflects functional differences between these two populations is unknown. These studies examine the gene expression profiles of CD4+ vs CD4- ILC1 in a cohort of healthy control subjects. ILC subsets were isolated from the peripheral blood of healthy control subjects. cDNA was isolated and amplified from sorted populations, and gene expression was analyzed by RNAseq

2015-12-31 | E-GEOD-69596 | biostudies-arrayexpress

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