Project description:The transcription factors that regulate gene expression in stimulated neutrophils are poorly characterized. Herein, we found that the genomic distribution of the myeloid lineage determining transcription factors PU.1 and C/EBPβ, as well as that of the histone modification H3K27Ac, which marks active chromatin, significantly change in human neutrophils treated with R848, a ligand of TLR8.
Project description:HL-60 is a human promyelocytic leukemia cell line and differentiated HL-60 is an alternative to human primary neutrophils. The transcriptomic profile of undifferentiated HL-60 and dimethyl sulfoxide-differentiated HL-60 were determined at 4 and 24 hours after stimulation with high and low concentrations of Staphylococcus aureus lipoteichoic acids.
Project description:We aim to characterize to effects of the absence of CD40L on neutrophil transcriptome and the effect of soluble CD40L on HL60 cells. For this purpose Total RNA of isolated neutrophils from three CD40L-deficient patients and three healthy controls as well as HL-60 cells from ATCC (HL-60 (ATCC CCL-240) were analyzed by RNAseq. Before RNA obtention, neutrophils were incubated for 2 hours in the presence or absence of 100 U/ml rhIFN- (Immukine, Boehringer Ingelheim), and HL-60 cells cultured for 6 days in the presence or absence of 500 ng/mL sCD40L and/or 1,0 % dimethyl sulfoxide (DMSO).
Project description:We report the high-throughput sequencing results in mammalian cell lines. Neutrophils were induced by HL-60 with 1umol/L ATRA(all-trans retinoid acid ) stimulation for 7days. Neutrophils were then stimulated with 0.05ug/mL AGEs,30mmol/L D-glucose, AGEs+D-glucose and 0.05ug/mL BSA (control) for 24-hours, then mRNA profiles were extracted and tested using Illumina Hiseq 4000. This study provides a prospective work for the influence of AGEs and high-glucose in human neutrophils.
Project description:The transcription factors that regulate gene expression in stimulated neutrophils are poorly characterized. Herein, we found that the genomic distribution of the myeloid lineage determining transcription factors PU.1 and C/EBPβ, as well as that of the histone modification H3K27Ac, which marks active chromatin, significantly change in human neutrophils treated with R848, a ligand of TLR8.
Project description:To investigate the changes in gene expression during the process of differentiation into neutrophils, microarray analysis was performed. HL-60 cells were cultured with all-trans retinoic acid (ATRA) for 4 days. The cells were collected at four different time points and total RNA was prepared for use as a sample for microarray analysis.
Project description:The transcription factors that regulate gene expression in stimulated neutrophils are poorly characterized. Herein, we found that the genomic distribution of the myeloid lineage determining transcription factors PU.1 and C/EBPβ, as well as that of the histone modification H3K27Ac, which marks active chromatin, significantly change in human neutrophils treated with R848, a ligand of TLR8.