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Remission in Polyarticular Juvenile Idiopathic Arthritis

ABSTRACT: Identify biomarkers to predict response to therapy in polyarticular juvenile idiopathic arthritis (JIA) using gene expression microarrays.

ORGANISM(S): Homo sapiens

PROVIDER: GSE15645 | GEO | 2009/04/13

SECONDARY ACCESSION(S): PRJNA116659

REPOSITORIES: GEO

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Remission in Polyarticular Juvenile Idiopathic Arthritis

Project description:Identify biomarkers to predict response to therapy in polyarticular juvenile idiopathic arthritis (JIA) using gene expression microarrays. 42 samples from 13 controls, 14 active patients, 9 patients in clinical remission with medication (CRM), and 6 patients in clinical remission without medication (CR). All patients had polyarticular JIA.

2009-04-13 | E-GEOD-15645 | biostudies-arrayexpress

Common Immunologic Pathways Between Oligoarticular and Polyarticular Juvenile Idiopathic Arthritis

2015-04-07 | GSE67596 | GEO

Common Immunologic Pathways Between Oligoarticular and Polyarticular Juvenile Idiopathic Arthritis

Project description:The polyarticular and oligoarticular forms of juvenile idiopathic arthritis are classified as distinct entities. At the same time, many children who present with an oligoarticular phenotype eventually evolve to a polyarticular disease pattern, suggesting that the phenotypes might share with overlapping molecular mechanisms. Using gene expression microarrays, we found that 14 genes in neutrophils and 55 genes in PBMC shows common patterns of differential expression when children with active oligoarticular and polyarticular JIA were compared with healthy controls. These results demonstrate that there are commonalities between oligoarticular and polyarticular JIA that suggest overlapping immune mechanisms. Total RNA was extracted from isolated PBMC and neutrophils from 14 patients with polyarticular JIA and 8 patients with pauciarticular JIA. Total RNA was extracted from neutrophils from 13 healthy controls and from PBMC from 15 healthy controls. Insufficient RNA for microarrays was obtained from neutrophils from two of the healthy controls.

2015-04-07 | E-GEOD-67596 | biostudies-arrayexpress

Remission in Juvenile Idiopathic Arthritis Achieved on Different Drug Regimens

Project description:Remission has become both the gold standard for clinical care and the end point for clinical trials for children with juvenile idiopathic arthritis (JIA). Using gene expression microarrays, we found that when remission induced by methotrexate (MTX) or MTX plus a TNF inhibitor (etanercept, Et) (MTX+Et) was compared with healthy controls, there were notable differences in gene expression patterns, demonstrating that remission is not a restoration of immunologic normalcy. Differences were detected in PBMC as well as in granulocytes. Total RNA was extracted from isolated PBMC and granulocytes from patients with polyarticular JIA and from healthy controls. Patients had achieved remission (clinical remission on medicine as defined by Wallace et al, Arthritis Rheum. 2005;52(11):3354-3562) using either MTX or MTX+Et.

2013-10-24 | E-GEOD-41831 | biostudies-arrayexpress

Whole Blood Gene Expression Profiling Predicts Therapeutic Response in Polyarticular Juvenile Idiopathic Arthritis at 4 Months

Project description:To determine whether gene expression profiles from peripheral whole blood could be used to determine therapeutic outcome in a cohort of children with newly diagnosed polyarticular JIA. 19 samples were obtained from healthy childhood controls and 93 samples from patients with juvenile idiopathic arthritis. For patient samples, they were collected prior to treatment (month 0) or 4 months after treatment.

2014-02-26 | E-GEOD-55319 | biostudies-arrayexpress

Gene Expression Profiles Distinguish Children with Inactive Polyarticular Juvenile Idiopathic Arthritis (JIA) with a Predilection to Flare

Project description:Gene expression profiles were obtained from 17 children with rheumatoid factor negative (RF-) polyarticular juvenile idiopathic arthritis (JIA). The disease was inactive in all patients at visit 1. Thee disease remained inactive at visit 2 for 9 patients, while the other 8 patients were experiencing a disease flare at visit 2. The goal of the study was to better understand the underlying molecular biology of flares in JIA Total RNA was obtained from PBMC at two different times in the course of disease

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Gene Expression Profiles Distinguish Children with Inactive Polyarticular Juvenile Idiopathic Arthritis (JIA) with a Predilection to Flare

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Modeling Transcriptional Rewiring in Neutrophils through the Course of Treated Juvenile Idiopathic Arthritis

Project description:Neutrophils in children with the polyarticular form of juvenile idiopathic arthritis (JIA) display abnormal transcriptional patterns linked to fundamental metabolic derangements. These abnormalities include re-ordering of miRNA-RNA expression networks. In this study, we sought to determine the effects of therapy on miRNA-RNA networks in polyarticular JIA. We studied children with active JIA disease on therapy (ADM), children with inactive disease also on therapy (ID), and children with clinical remission on medication (CRM) using exon and miRNA microarrays and compared results to findings from healthy control (HC) children. We found substantial re-ordering of miRNA-RNA networks after the initiation of therapy. Each disease state was associated with a distinct transcriptional profile.

2017-02-01 | GSE94354 | GEO

Remission in Juvenile Idiopathic Arthritis Achieved on Different Drug Regimens

2013-10-24 | GSE41831 | GEO

RNA sequencing of T helper type 1 differentiated cultures in polyarticular juvenile idiopathic arthritis and healthy controls

Project description:Biologic pathway differences in polyarticular JIA and healthy control Th1 culture cells were determined by RNA sequencing and pathway analysis. RNA from 3 JIA and 3 pediatric healthy control Th1 cultures were analyzed for differential gene expression using DESeq2.

2021-10-04 | GSE185193 | GEO

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