Project description:The mechanisms in regulating the development of IL-10 producing B cells are largely unknown. To clarify which transcription factor is critical for regulation of IL-10 producing B cells, we compared the gene expression profile of IL-10 positive B cells and IL-10 negative B cells. Transcriptional repressor Prdm1/Blimp1 is known to play a key role in controlling B ells differentiation. We show a dual role for Blimp-1 in IL-10 expression in IL-10 producing B cells and plasmablasts.
Project description:Chromatin profiling of mouse splenic ex-vivo IL-10+, IL-10-CD19+CD21hiCD23hiCD24hi B cells and IL-10- follicular B cells, after antigen induced arthritis. IL-10eGFP reporter (Vert-X) mice were used to sort IL-10+ and IL-10- subsets. ATAC-seq was used in conjunction with microarray data to understand the chromatin profiles and transcriptional landscape of mouse regulatory B cells, compared to other B cell subsets.
Project description:We compared the clonotypes of IL-10+ and IL-10- B1a, marginal zone and follicular B cells from the spleen of sIgM-/-IL10GFP mouse using 10X single cell RNAseq to analyze potential differences in clonality between IL-10+ and IL-10- B cells.
Project description:B cells belong to the adaptive immune system and have multiple functions. Besides their well characterized role in the promotion of the immune response, specific B cell subsets were shown to have an anti-inflammatory function. These cells are termed regulatory B cells and they exert their function mainly through the production of interleukin 10 (IL-10). This study focuses on B cells capable of producing IL-10 after 5 hours of stimulation with LPS, PMA and ionomycin, without any distinction based on surface markers.
Project description:We stimulated freshly enriched splenic NK cells with either IL-12+IL-18 (1ng/ml each) or plate-bound anti-NK1.1. NKs from several C57Bl/6 mice were pooled. We then performed gene expression profiling analysis using data obtained from RNA-seq at two time points: 3 or 6 hours.
Project description:ChIP-seq was conducted on isolated splenic WT CD8+ T cells, TCR-activated and cultured with IL-2 using anti-Runx3 antibodies (Ab), anti-H3K4me1 Ab and non-immune serum (NIS) as control. Two biological Runx3 and two NIS IP repeats from TCR-activated and IL-2 cultured splenic CD8+ T cells isolated by positive selection on anti-CD8 magnetic beads.