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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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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

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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.

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Marginal zone B cells receive robust Notch2 signals within the B cell follicle in the absense of S1pr1 signaling.

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

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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

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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

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