DNA methylation patterns of lupus patient PBMCs, subdivided based on protein expression of ARID3a
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ABSTRACT: Methyl-seq data was obtained from total peripheral blood mononuclear cells of two patients with systemic lupus erythematosus who were characterized as having>2 standard deviations more ARID3a-expressing B lymphocytes than healthy controls. Similarly, methyl-seq data was also obtained from two SLE patient samples with normal (low) numbers of ARID3-expressing B lymphocytes. Our previous studies showed that increased ARID3a expression in B lymphocytes was associated increased disease activity. Data were generated on an Illumina Hiseq 2000 with paired-end 100bp reads and quality control metrics were assessed with Picard tools. Methylation profiles of genomic DNA from four SLE patient PBMC samples, two with high numbers of ARID3a expressing B cells (ARID3aH) versus two with normal numbers of ARID3a+ B cells (ARID3aN), were generated on an Illumina Hiseq 2000 with paired-end 100bp reads.
Project description:Methyl-seq data was obtained from total peripheral blood mononuclear cells of two patients with systemic lupus erythematosus who were characterized as having>2 standard deviations more ARID3a-expressing B lymphocytes than healthy controls. Similarly, methyl-seq data was also obtained from two SLE patient samples with normal (low) numbers of ARID3-expressing B lymphocytes. Our previous studies showed that increased ARID3a expression in B lymphocytes was associated increased disease activity. Data were generated on an Illumina Hiseq 2000 with paired-end 100bp reads and quality control metrics were assessed with Picard tools.
Project description:Percentages of ARID3a-expressing low density neutrophils in SLE patients correlate with lupus disease activity and Type I IFN production. ARID3a protein levels also correlate with interferon expression in plasmacytoid dendritic cells. Gene profiles mechanistically link ARID3a with inflammatory pathway regulation.
Project description:Mammary glands of 8 adult (10 week-old) female mice were collected. Freshly sorted basal and luminal epithelial cells were submitted to a Fluidigm C1 System machine for single cell capture and cDNA synthesis. Cells were visualized under the microscope to ensure integrity of the captured single cells prior to cDNA preparation. Libraries were prepared using the Nextera XT kit and sequencing was carried out on an Illumina Hiseq 2000 to achieve 100bp paired-end reads.
Project description:Aging results in altered gene expression patters in HSCs expressing ARID3A transcirpts, with a number of genes downregulated in aged donor ARID3a+ HSCs compared to young donor ARID3a+ HSCs
Project description:The study used two Drosophila melanogaster fly lines, Alstonville and Dahomey, which have mitochondrial DNA variants but otherwise similar genomes. Female third instar larvae from both lines were fed on two diets, one with a 1:2 protein:carbohydrate ratio and the other with a 1:16 ratio. RNA was extracted and profiled by RNA-seq. Samples were sequenced on an Illumina Hiseq 2000 sequencer at the Ramaciotti Centre for Genomics, Sydney, Australia to produce 100bp paired end reads. At least 80 million read pairs were generated per sample.
Project description:Background: Trisomy 21 causes Down syndrome (DS), but the mechanisms by which the extra chromosome leads to deficient intellectual and immune function are not well understood. Results: Here, we profile CpG methylation in DS and control cerebral and cerebellar cortex of adults and cerebrum of fetuses. We purify neuronal and non-neuronal nuclei and T-lymphocytes and find biologically relevant genes with DS-specific methylation (DS-DM) in brain cells. Some genes show brain-specific DS-DM, while others show stronger DS-DM in T cells. Both 5-methyl-cytosine and 5-hydroxy-methyl-cytosine contribute to the DS-DM. Thirty percent of genes with DS-DM in adult brain cells also show DS-DM in fetal brains, indicating early onset of these epigenetic changes, and we find early maturation of methylation patterns in DS brain and lymphocytes. Some, but not all, of the DS-DM genes show differential expression. DS-DM preferentially affected CpGs in or near specific transcription factor binding sites, implicating a mechanism involving altered transcription factor binding. Methyl-seq of brain DNA from mouse models with sub-chromosomal duplications mimicking DS reveals partial but significant overlaps with human DS-DM and shows that multiple chromosome 21 genes contribute to the downstream epigenetic effects. Conclusions: These data point to novel biological mechanisms in DS and have general implications for trans effects of chromosomal duplications and aneuploidies on epigenetic patterning. Examination of methylation changes in two mouse models of Down syndrome with sub-chromosomal duplications, Dp(10)1Yey and Dp(16)1Yey, compared to one littermate wild type mouse using whole genome bisulfite sequencing.
Project description:This SuperSeries is composed of the SubSeries listed below. Mammary glands were collected from female mice of various ages: pre puberty (2 weeks), pubescent (5 weeks), adult (10 weeks) and pregnant (12.5 days mid-pregnancy). Freshly sorted epithelial cells were submitted to a Fluidigm C1 System machine for single cell capture and cDNA synthesis. In some cases, cells were further sorted into basal and luminal subsets. Cells were visualized under a microscope to ensure integrity of the captured single cells prior to cDNA preparation. Libraries were sequencing on an Illumina HiSeq 2000 to achieve 100bp paired-end reads or on an Illumina NextSeq to achieve 75bp paired-end reads.
Project description:To understand the genetic regulation of gene expression and patterns of gene co-expression, we sequenced the transcriptome of the hippocampus of 258 Diversity Outbred (DO) mice of both sexes. DO mice (fourth and fifth generations of outcrossing) were sacrificed between 6-8 weeks of age and hippocampus dissected. Total hippocampal RNA was isolated using a TRIzol Plus RNA purification kit (Life Technologies) and mRNA sequencing library was prepared using a TruSeq kit (Illumina), both according to manufacturer's protocols. Paired-end 100bp reads were obtained using the Illumina HiSeq 2000.
Project description:Localisation of CpG methylation in yeast expressing murine DNMTS Genomic DNA was purified from a control strain and a strain expressing murine DNMTs, treated with Bisulfite and sequenced on a hiseq 2000