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Gene expression data from mouse conventional dendritic cells (cDC) [Batf, Batf3 DKO]

ABSTRACT: We used microarrays to understand roles of BATF proteins in the regulation of cDC-specific gene expression.

ORGANISM(S): Mus musculus

PROVIDER: GSE140452 | GEO | 2020/08/13

REPOSITORIES: GEO

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Gene expression data from mouse conventional dendritic cells (cDC) [Batf, Batf3 DKO]

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Gene expression data from mouse conventional dendritic cells (cDC) [IRF4,IRF8 DKO]

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Absence of Batf3 reveals a new dimension of phenotypic cell state plasticity within conventional dendritic cells

Project description:Conventional dendritic cells (cDCs) are traditionally subdivided into cDC1 and cDC2 lineages. Batf3 is a cDC1-required transcription factor, and we observed that Batf3-/- mice harbor a population of cDC1-like cells co-expressing cDC2-associated surface molecules. Using single cell RNA sequencing with integrated cell surface protein expression (CITE-seq), we found that Batf3-/- mitotic immature cDC1-like cells showed reduced expression of cDC1 features and increased levels of cDC2 features. In wildtype, we also observed a proportion of mature cDC1 cells expressing surface features characteristic to cDC2, and found that overall cDC cell state heterogeneity was mainly driven by developmental stage, proliferation and maturity. We detected population diversity within Sirpa+ cDC2 cells, including a Cd33+ cell state expressing high levels of Sox4 and lineage-mixed features characteristic to cDC1, cDC2, pDCs and monocytes. In conclusion, these data suggest that multiple cDC cell states can co-express lineage-overlapping features, revealing a level of previously unappreciated cDC plasticity.

2021-02-24 | GSE149544 | GEO

BATF knockout B cells

Project description:compare wild type and Batf-/- B cells activated for 0 1 or 2 days in vitro. WT or Batf deficient B cells were activated in vitro with LPS for 1 or 2 days, or left untreated. B cells were purified by MACS and activated, harvested and prepped for affymetrix gene expression profiling.

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Plasmacytoid dendritic cell precursors give rise to conventional dendritic cells via a Siglec-H+ Zbtb46+ Ly6D+ intermediary stage

Project description:Plasmacytoid and conventional dendritic cells (pDC, and cDC) are generated from distinct lymphoid and myeloid progenitor cells in murine bone marrow. Despite the early separation of pDC and cDC lineages, CD11c+ MHCII-/lo Siglec-H+ CCR9lo pDC-like precursor cells are able to differentiate into both pDC and cDC. Single-cell transcriptomics and high-dimensional flow cytometry combined with cell fate analysis revealed the heterogeneity and commitment of subsets in this compartment. While Ly6D– cells within this fraction were cDC-committed and B220hi Ly6Dhi Zbtb46– cells were immediate precursors of pDCs, B220lo Ly6Dhi Zbtb46– cells still had the potential to generate cDCs in addition to pDCs. Transition to cDCs occurred via an intermediary stage marked by coexpression of Siglec-H, Ly6D and Zbtb46. Type I IFN stimulation limited cDC and promoted pDC output from these precursors, demonstrating their plasticity in response to inflammation. Thus, flexibility to divert to cDCs is retained in the pDC lineage at later differentiation stages.

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Transcription profiling by array of mouse M1 cells expressing Batf targeting siRNA or control siRNA and treated with leukemia inhibitory factor to identify putative downstream targets of Batf

Project description:In order to identify putative downstream targets of Batf in M1 cells, a microarray analysis was performed. Briefly, M1/Neg-RNAi (expressing control siRNA with no mammalian target) and M1/Batf-RNAi cells (expressing Batf targeting siRNA) were seeded in M1 growth medium at a density of 3 X 105/ml in 100mm culture dishes. Six plates were plated for each cell type. Within each group, three were labeled as + LIF and treated with leukemia inhibitory factor (LIF) (5 ng/ml) for 6 hours the following day. After 6 hours, the cells were harvested from all plates individually and RNA prepared. 5 µg of total RNA from the three individual samples representing each subgroup (M1/Neg-RNAi + LIF, - LIF; M1/Batf-RNAi + LIF, - LIF) were combined into one pool of RNA. EJT001 represents sample "M1/Neg-RNAi, no LIF)"; EJT002 represents sample "M1/Neg-RNAi, with LIF)"; EJT003 represents sample "M1/Batf-RNAi, no LIF)"; EJT004 represents sample "M1/Batf-RNAi, with LIF)". The four pools of RNA were shipped to Genome Explorations, Inc. for analysis using Affymetrix GeneChip technology. The differentially regulated genes were identified both within each group (+ LIF compared to - LIF) and between 2 goups (M1/Neg-RNAi and M1/Batf-RNAi).

2011-03-01 | E-MEXP-2995 | biostudies-arrayexpress

Absence of Batf3 reveals a new dimension of cell state heterogeneity within conventional dendritic cells.

Project description:Conventional dendritic cells (cDCs) are traditionally subdivided into cDC1 and cDC2 lineages. Batf3 is a cDC1-required transcription factor, and we observed that Batf3-/- mice harbor a population of cDC1-like cells co-expressing cDC2-associated surface molecules. Using single-cell RNA sequencing with integrated cell surface protein expression (CITE-seq), we found that Batf3-/- mitotic immature cDC1-like cells showed reduced expression of cDC1 features and increased levels of cDC2 features. In wild type, we also observed a proportion of mature cDC1 cells expressing surface features characteristic to cDC2 and found that overall cDC cell state heterogeneity was mainly driven by developmental stage, proliferation, and maturity. We detected population diversity within Sirpa+ cDC2 cells, including a Cd33+ cell state expressing high levels of Sox4 and lineage-mixed features characteristic to cDC1, cDC2, pDCs, and monocytes. In conclusion, these data suggest that multiple cDC cell states can co-express lineage-overlapping features, revealing a level of previously unappreciated cDC plasticity.

| S-EPMC8105636 | biostudies-literature

Bulk RNA sequencing of WT (Batf fl/fl) and Batf-/- (Batf fl/fl PLZFcre+) ILC3s sorted from small intestine [bulk RNA-seq]

Project description:Group 3 innate lymphoid cells (ILC3s) are crucial for the maintenance of host-microbiota homeostasis in gastrointestinal mucosal tissues. The mechanisms that maintain lineage identity of intestinal ILC3s, and ILC3s-mediated orchestration of microbiota and mucosal T cell immunity are elusive. Here, we identified BATF as a gatekeeper of ILC3s homeostasis in the gut. Depletion of BATF in ILC3s resulted in excessive interferon-γ production, dysbiosis, aberrant T cell immune responses and spontaneous inflammatory bowel disease (IBD), which was considerably ameliorated by removal of adaptive immunity or antibiotic treatment. Mechanistically, BATF directly regulates ILC3s identity by globally shapes chromatin landscape of ILC3s. BATF directly binds to the cis-regulatory elements of type 1 effector genes, restrains their chromatin accessibility and inhibits their expression. Conversely, BATF promotes chromatin accessibility of genes involved in MHCII antigen processing and presentation pathways. Collectively, our findings reveal BATF is a promising candidate to maintain ILC3s stability and coordinate ILC3s–mediated control of intestinal homeostasis.

2022-08-31 | GSE168076 | GEO

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