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Transcripts induced by exposure to SLE serum in healthy blood monocytes

ABSTRACT: Monocytes from 3 healthy donors were cultured for 6 hours in the presence of 20% serum from three newly diagnosed, untreated SLE patients. Microarray analysis was then performed upon normalizing the gene expression levels of samples incubated with SLE sera to those incubated with autologous serum.

ORGANISM(S): Homo sapiens

PROVIDER: GSE46920 | GEO | 2014/06/03

SECONDARY ACCESSION(S): PRJNA203036

REPOSITORIES: GEO

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Transcripts induced by exposure to SLE serum in healthy blood monocytes

Project description:Monocytes from 3 healthy donors were cultured for 6 hours in the presence of 20% serum from three newly diagnosed, untreated SLE patients. Microarray analysis was then performed upon normalizing the gene expression levels of samples incubated with SLE sera to those incubated with autologous serum. Monocytes from 3 healthy donors were cultured for 6 hours in the presence of 20% serum from three newly diagnosed, untreated SLE patients. Microarray analysis was then performed upon normalizing the gene expression levels of samples incubated with SLE sera to those incubated with autologous serum.

2014-06-03 | E-GEOD-46920 | biostudies-arrayexpress

Autoimmune antigen and serum factor antigen reactivity in a cohort of patients with systemic lupus erythematosus (SLE) and healthy controls from the ABCoN cohort.

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Transcriptional profiles of pediatric SLE neutrophils and Healthy neutrophils cultured with SLE sera or Interferon

Project description:Mature neutrophis were freshly isolated from blood of pediatric systemic lupus erythematosus (SLE) patients and healthy donors. Illumina microarray was used to assess transcriptional changes between SLE group and Control group. To uderstand further the gene expression difference between SLE and healthy neutrofils, neutrophils from healthy donors were cultured with autologous sera, SLE sera or Interferon and microarray data was used to compare with fresh SLE neutrophils. (Expt 1) Neutrophils from 21 SLE samples (19 patients) and 12 healthy donors were isolated, and extracted RNAs were used generate microarray data. (Expt 2) Neutrophils isolated from 2 healthy children (not used in the first experiment) were cultured with autologous sera (control), Interferon alpha (100U and 1000U), and 4 SLE sera and 6 SLE sera for 6 hours and RNAs were extract for microarray experiment.

2011-03-10 | E-GEOD-27427 | biostudies-arrayexpress

Autoimmune antigen and serum factor antigen reactivity in a cohort of patients with systemic lupus erythematosus (SLE) and healthy controls from the ABCoN cohort.

Project description:The aim of the study was to test the hypothesis that SLE patient sera contains IgG reactivity to serum factor antigens concomitant with prototypical autoimmne antigens. We diluted patient sera 1:250 and incubated dilutions on a nitrocellulose-platform array printed with whole protein antigens. In this study, serum from 45 individuals (subsetted into high and low interferon signature as well as healthy control categories) was profiled for IgG autoantibody reactivity to whole protein autoimmune and serum factor antigens. SLE and specifically IFN high patient sera was found using the significance analysis of microarrays (SAM) algorithm to be significantly more reactive with prototypical autoimmune antigens and select serum factor array antigens.

2013-09-24 | E-GEOD-51100 | biostudies-arrayexpress

Transcriptional profiles of pediatric SLE neutrophils and Healthy neutrophils cultured with SLE sera or Interferon

2011-03-10 | GSE27427 | GEO

SLE serum induced transcripts regulated by IFNa2b

Project description:To explore the full extent of IFN-regulated transcriptional changes, we exposed monocytes from two healthy donors to recombinant type I IFN (IFN-M-NM-12b) in vitro. RNA was extracted at 6 hrs and the expression data was normalized to that of monocytes cultured with medium. Blood monocytes isolated from healthy volunteers were incubated with 20% autologous serum alone or in the presence of 1000 U/ml of IFNM-NM-12b (Schering Plough, Kenilworth, NJ) in 6-well plates at a concentration of 106 monocytes per well in 3 ml of media. After incubation for six hours at 37 M-bM-^AM-0C, cells were harvested and RNA was extracted.

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Differentially expressed transcripts in SLE blood monocytes according to their capacity to induce mixed lymphocytic reaction

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Differentially expressed transcripts in SLE blood monocytes according to their capacity to induce mixed lymphocytic reaction

Project description:We screened SLE monocytes from 19 SLE patients and selected 4 that induced CD4+ T cell proliferation in vitro and 4 that did not. CFSE labeled CD4-T cells (105) were incubated with SLE monocytes (2 x 104). Cells were harvested at 6 hours for RNA extraction. We screened SLE monocytes from 19 SLE patients and selected 4 that induced CD4+ T cell proliferation in vitro and 4 that did not. CFSE labeled CD4-T cells (105) were incubated with SLE monocytes (2 x 104). Cells were harvested at 6 hours for RNA extraction.

2014-06-03 | E-GEOD-46917 | biostudies-arrayexpress

Differentially expressed transcripts in SLE blood monocytes

Project description:To better characterize the molecules that could potentially confer antigen presenting capacity to SLE monocytes, we assessed their gene expression profile. Blood monocytes from five healthy controls and five pediatric SLE patients were isolated using CD14+ selection. Because drugs used to treat SLE could induce considerable transcriptional changes, we selected active, newly diagnosed patients who had never received oral or intravenous (IV) medications.

2014-06-03 | E-GEOD-46907 | biostudies-arrayexpress

Histone protein and peptide reactivity within patients with systemic lupus erythematosus (SLE) from the ABCoN cohort

Project description:The aim of the study was to test the hypothesis that IFN high SLE patient sera is more reactive to whole histone proteins and post-translationally modified histone peptides than IFN low patient sera. We diluted patient sera 1:250 and incubated dilutions on a nitrocellulose-platform array printed with whole protein and peptide histone antigens.

2011-12-02 | GSE34070 | GEO

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