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The gene expression of MZ B cells and neutrophils after Staphylococcus aureus infection in B6 mice

ABSTRACT: Marginal zone B cells can quickly respond to the bacterial invasion by providing the first-line of antibodies. Neutrophil can help marginal zone B cells activation and differentiation. We investigated the specific gene expression that interacts between the MZ B cells and neutrophils at the initial stage after Staphylococcus aureus infection.

ORGANISM(S): Mus musculus

PROVIDER: GSE157176 | GEO | 2021/06/02

REPOSITORIES: GEO

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Gene expression profiles from human splenic Marginal Zone and Naive (Follicular) B cells

Project description:Splenic Marginal Zone B cells mount innate-like T cell-independent (TI) antibody responses to blood-borne antigens upon receiving activation signals from TACI-engaging factors BAFF and APRIL. The transcriptome analysis of splenic Marginal Zone (MZ) B cells was performed to verify which transcriptional programs are enhanced in the innate-like MZ B cell subset and to study the involvement of mTOR in MZ B cells activated via TACI.

2017-10-14 | GSE85289 | GEO

Gene expresion profiling of two distnict splenic marginal zone B cell subpopulations, CD80high and CD80low MZ B cells

Project description:Marginal zone (MZ) B cells are innate-like B cells that not only rapidly secrete antibodies (Abs) against blood-borne pathogens but also serve Ab-independent functions such as antigen presentation and immune regulation, which may reflect their heterogeneity. Here, we discovered a subpopulation of MZ B cells that expressed higher levels of CD80, but not CD86, in naïve mice. CD80high MZ B cells revealed higher Ab-producing, proliferative, and IL-10-secreting capacities than CD80low MZ B cells. Notably, the CD80high MZ B cells survived 2 Gy whole-body irradiation, whereas CD80low MZ B cells were preferentially depleted by the irradiation and repleted in a month after the irradiation. The CD80high MZ B cells expressed higher levels of genes involved in proliferation, plasma cell differentiation, antioxidant response, and immune regulation. The CD80high MZ B cells contained autoreactive BCRs reactive to double-stranded DNA or type II collagen. Next-generation sequencing revealed more immunoglobulin heavy chains with a shorter complementarity-determining region 3 and no N-nucleotides in the CD80high MZ B cells than in CD80low MZ B cells. In summary, MZ B cells can be divided into two populations differing in CD80 expression, Ab-productive capacity, radioresistance, and B cell receptor repertoire, which may have different homeostatic functions.

2023-12-31 | GSE242393 | GEO

Transcriptomic analyis of donor (B6:SJL.C20) and host follicular and marginal zone B cells after adoptive transfer of follicular B cells into into lymphopenic (Rag2-/-) or replete animals (C57BL6)

Project description:The generation of marginal zone (MZ) B cells is a Notch2 dependent process. We observed that transdifferentiation of follicular (FO) B cells to an MZ-like phenotype is dependent on a lymphopenic environment. We therefore adoptively transftered congenically marked SJL.C20 (CD45.1) mature naive FO B cells into either lymphopenic Rag2-/- or intact C57BL6 (CD45.2) recipient mice and recovered and double sorted intermediate phenotype (MZ-FO) donor B cells at day 4 post transfer from Rag2-/- recipients or both MZ and FO phenotype donor B cells at day 8 post transfer from both recipient groups and performed RNA sequencing.

2022-05-01 | GSE200219 | GEO

The gene expression of MZ B cells and neutrophils after Staphylococcus aureus infection in B6 mice

Project description:The gene expression of MZ B cells and neutrophils after Staphylococcus aureus infection in B6 mice

| PRJNA660401 | ENA

Programming of marginal zone B cell fate by basic krüppel-like factor (BKLF/KLF3)

Project description:Gene expression analysis of splenic follicular B cells and marginal zone B cells from B6 and CD19:KLF3 transgenic mice Comparing KLF3-transgenic and non-transgenic follicular B cells by RNA-microarray revealed that KLF3 regulates a subset of genes that was similarly up-/downregulated upon normal MZ B cell differentiation. Indeed, KLF3 expression overcame the lack of MZ B cells caused by different genetic alterations, such as CD19-deficiency or blockade of B-cell activating factor (BAFF)-receptor signaling, indicating that KLF3 may complement alternative NF-κB signaling. Thus, KLF3 is a driving force towards MZ B cell maturation. RNA of splenic follicular B cells and marginal zone B cells were obtained from 4 different mice per group (B6 and CD19:KLF3 mice). 16 samples = 8 individual mice x 2 B cell subsets.

2011-01-29 | E-GEOD-26948 | biostudies-arrayexpress

Transcription profiling of mouse follicular and marginal zone B-cells

Project description:Immature B cells in spleens of mouse and human differentiate into at least two subsets of mature B cells, the follicular (FO) B cells and the marginal zone (MZ) B cells, but functions, maturation and other properties of these cells are largely unknown. To solve these questions, in this study, we performed transcriptome analyses of FO and MZ B cells sorted from spleens of normal unimmunized mice using gene chips. By comparison of gene expression profiles between FO and MZ B cells, we identified 1226 genes that are expressed higher in FO B cells than in MZ B cells. On the other hand, 1734 genes were found to be expressed higher in MZ B cells than in FO B cells. We noticed that some of differentially expressed genes have been reportedly characterized in FO and MZ B cells, suggesting the reliability of the analysis. By using FACS analyses, we confirmed that CD36, CD68, and CD49e are expressed on MZ B-cells but not on FO B-cells. These results revealed new phenotypic and functional properties of FO and MZ B cells, and set a molecular basis for further studying differentiation and functions of these mature B cells. Experiment Overall Design: one follicular B cells replicate and one marginal zone B cells replicate were analyzed.

2008-06-12 | E-GEOD-3599 | biostudies-arrayexpress

Comparison of gene expression profiles between mouse follicular and marginal zone B-cells

Project description:Immature B cells in spleens of mouse and human differentiate into at least two subsets of mature B cells, the follicular (FO) B cells and the marginal zone (MZ) B cells, but functions, maturation and other properties of these cells are largely unknown. To solve these questions, in this study, we performed transcriptome analyses of FO and MZ B cells sorted from spleens of normal unimmunized mice using gene chips. By comparison of gene expression profiles between FO and MZ B cells, we identified 1226 genes that are expressed higher in FO B cells than in MZ B cells. On the other hand, 1734 genes were found to be expressed higher in MZ B cells than in FO B cells. We noticed that some of differentially expressed genes have been reportedly characterized in FO and MZ B cells, suggesting the reliability of the analysis. By using FACS analyses, we confirmed that CD36, CD68, and CD49e are expressed on MZ B-cells but not on FO B-cells. These results revealed new phenotypic and functional properties of FO and MZ B cells, and set a molecular basis for further studying differentiation and functions of these mature B cells. Keywords: Comparison of gene expression profiles between mouse follicular and marginal zone B-cells

2006-04-21 | GSE3599 | GEO

Transcriptomic analyis follicular and marginal zone B ells after in vivo Notch2 blockade.

Project description:Marginal zone B cells which make rapid mitosis-independent plasma cell responses are dependent on Notch2 signaling for their generation and maintenance. In order to determine the effect of ongoing Notch signaling on the maintenance of the MZ transcriptome, we performed RNA-seq on MZ and follicular B cells after 12, 24 and 48 hours of in vivo Notch2 antibody blockade

2021-07-22 | GSE180172 | GEO

Bulk RNA sequencing on sorted blood cells from Drosophila lymph glands [MZ IZ bulk RNA-seq]

Project description:We report the use of bulk mRNA sequencing on FACS-sorted blood cells to identify new and unique genetic markers for each major zone of the Drosophila lymph gland. We used flow cytomotery in a wild-type genetic background whihc contains two fluorescent reporters that allow for the separation of 4 distinct populations. Progenitors of the medullary zone (MZ) are marked by dome-meso-EGFP expression. Differentitating cels of the cortical zone (CZ) are marked by Hml-DsRed. These two sorted populations (MZ and CZ) are positive for the expected zone-specific markers (i.e. Tep4, dome, and shg for MZ and Hml, Pxn, vkg, Col4a1, and NimC1 for plasmatocytes of the CZ), however, the CZ population also expresses crystal cell markers (hnt, lz, ProPO), indicating that it is a mix of plasmatocytes and crystal cells. Intermediate progenitors of the intermediate zone (IZ), which are not well understood and do not have specific markers, but are characterized by simultaneous expression of EGFP and DsRed (double positives) were also sorted. In addtiion, there is a population of lymph gland cells that is double negative for both EGFP and DsRed fluorescence. This double negative population contains a mix of cell types including posterior signaling center (PSC) cells, MZ and CZ cells that have lost fluorescence, late crystal cells that do not express Hml (early CCs do express), and non-blood cells (i.e. dorsal vessel and pericardial cells). These double negatives were excluded from the analysis for these reasons. We analyzed transcript data of these 4 sorted populations in the early third instart larvae (90-96 hours after eggs lay at 25 degrees C). We identified novel markers that are differentially expressed in each of the three major blood cell populations (MZ, IZ, CZ) that have been useful to definetely identify populations in scRNA-Seq and give information about transcript isoforms in each of the distinct populations.

2021-11-03 | GSE168821 | GEO

Gene expression profiling of spleen marginal zone B cells and spleen follicular B cells in IRF8 conditional KO mice

Project description:Conditional IRF8 KO mice (mice with a conditional allele of Irf8 crossed with CD19-Cre mice) showed increased numbers of both Gene expression data spleen marginal zone (MZ) and Gene expression data spleen follicular (FO) B cells compared to control mice. To evaluate gene expression patterns that distinguished FO or MZ B cells derived from conditional KO and control mice, we used Affymetrix GeneChip® Mouse gene 1.0 ST Array.

2010-12-20 | GSE24972 | GEO

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