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

ABSTRACT: 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.

ORGANISM(S): Homo sapiens

SUBMITTER: Nicole Baldwin

PROVIDER: E-GEOD-46917 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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IFN priming is necessary but not sufficient to turn on a migratory dendritic cell program in lupus monocytes.

Rodriguez-Pla Alicia A Patel Pinakeen P Maecker Holden T HT Rossello-Urgell Jose J Baldwin Nicole N Bennett Lynda L Cantrell Victoria V Baisch Jeanine J Punaro Marilynn M Gotte Alisa A Nassi Lorien L Wright Tracey T Palucka Anna Karolina AK Banchereau Jacques J Pascual Virginia V

Journal of immunology (Baltimore, Md. : 1950) 20140514 12

Blood monocytes from children with systemic lupus erythematosus (SLE) behave similar to dendritic cells (DCs), and SLE serum induces healthy monocytes to differentiate into DCs in a type I IFN-dependent manner. In this study, we found that these monocytes display significant transcriptional changes, including a prominent IFN signature, compared with healthy controls. Few of those changes, however, explain DC function. Exposure to allogeneic T cells in vitro reprograms SLE monocytes to acquire DC ...[more]

PMID: 24829414

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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.

2014-06-03 | GSE46917 | GEO

Transcripts differentially expressed in healthy blood mDCs compared to healthy monocytes

Project description:To directly compare the SLE monocyte transcriptional program with that of blood mDC precursors, we purified lineage HLA-DRhighCD11chigh mDCs and CD14+ monocytes from the blood of five healthy donors. Their gene expression profiles were then compared to those of blood SLE monocytes. An unsupervised clustering analysis of transcripts present in >20% of the samples classified healthy monocytes, SLE monocytes and healthy mDCs into three well defined groups. A supervised analysis was then performed to find genes: 1) differentially expressed in healthy mDCs compared to monocytes; 2) shared by healthy blood mDCs and SLE blood monocytes. To directly compare the SLE monocyte transcriptional program with that of blood mDC precursors, we purified lineage HLA-DRhighCD11chigh mDCs and CD14+ monocytes from the blood of five healthy donors. Their gene expression profiles were then compared to those of blood SLE monocytes. An unsupervised clustering analysis of transcripts present in >20% of the samples classified healthy monocytes, SLE monocytes and healthy mDCs into three well defined groups. A supervised analysis was then performed to find genes: 1) differentially expressed in healthy mDCs compared to monocytes; 2) shared by healthy blood mDCs and SLE blood monocytes.

2014-06-03 | E-GEOD-46913 | 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

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

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.

2014-06-03 | E-GEOD-46921 | biostudies-arrayexpress

Transcripts induced by recombinant IFNa in healthy blood monocytes at different time points

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 different incubation times (1, 6, 24, 48 and 72 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 one hour at 37 M-bM-^AM-0C, cells were harvested and RNA was extracted. Identical experiments were done after the following incubation time points: six hours, twenty four hours, two days, and three days.

2014-06-03 | E-GEOD-46911 | biostudies-arrayexpress

Gene profiling reveals specific molecular pathways in the pathogenesis of atherothrombosis in Antiphospholipid syndrome, Systemic Lupus Erythematosus and Lupus with Antiphospholipid Syndrome

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2014-03-12 | E-GEOD-50395 | biostudies-arrayexpress

Systemic lupus erythematosus

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2014-06-03 | E-GEOD-46923 | biostudies-arrayexpress

Longitudinal SLE study with clinical parameters

Project description:Goal of the study was to compare transcriptomes of SLE patients at various stages of the disease, as well as to evaluate the transcriptome for individual patients over time while taking a large number of clinical parameters into account. 996 samples analyzed of which 72 are Healthy controls and 924 are SLE; 24 technical replicates of healthy samples are included and were used for batch correction purposes.

2016-03-31 | E-GEOD-65391 | biostudies-arrayexpress

Transcription profiling of peripheral blood leukocyte subsets in autoimmune/autoinflammatory disease patients and healthy controls

Project description:Gene expression microarray profiling was performed on peripheral blood leukocyte subsets (CD4+ T cells, CD14+ monocytes, and CD16+ neutrophils) from healthy controls and patients with flaring autoimmune disease.

2014-08-31 | E-MTAB-2452 | biostudies-arrayexpress

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