Investigation Title Transcription profiling of peripheral blood monocytes from patients with systemic juvenile idiopathic arthritis during active and inactive disease Comment[Submitted Name] Specific gene expression profiles in systemic juvenile idiopathic arthritis Experimental Design co-expression_design disease_state_design transcription profiling by array Experimental Design Term Source REF mo mo EFO Comment[ArrayExpressReleaseDate] 2007-03-31 Comment[AEMIAMESCORE] 5 Comment[ArrayExpressAccession] E-MEXP-987 Comment[MAGETAB TimeStamp_Version] 2011-06-28 21:50:47 Last Changed Rev: 14857 Experimental Factor Name clinical_information Experimental Factor Type clinical_information Experimental Factor Term Source REF Person Last Name Ogilvie Person First Name Emma Mary Person Mid Initials Person Email emma.ogilvie@ucl.ac.uk Person Phone 4.42077E+11 Person Fax Person Address "45 Cleveland Street, London, London, W1T 4JF, UK" Person Affiliation Immunology and Molecular Pathology Person Roles submitter Person Roles Term Source REF Quality Control Type biological_replicate Quality Control Term Source REF The MGED Ontology Replicate Type Replicate Term Source REF Normalization Type Normalization Term Source REF Date of Experiment Public Release Date 2007-03-31 PubMed ID Publication DOI Publication Author List "Emma Mary Ogilvie, Arshad Khan, Mike Hubank, Paul Kellam, and Patricia Woo" Publication Title Specific gene expression profiles in systemic juvenile idiopathic arthritis. Publication Status Publication Status Term Source REF Experiment Description Comaprison of PBMCs from patients with systemic juvenile idiopathic arthritis during active and inactive disease Protocol Name P-MEXP-43833 P-MEXP-43832 P-MEXP-43877 Affymetrix:Protocol:Hybridization-Unknown P-AFFY-6 Affymetrix:Protocol:MAS4:ExpressionCall Protocol Type specified_biomaterial_action nucleic_acid_extraction labeling hybridization feature_extraction bioassay_data_transformation Protocol Description "PBMCs were obtained by density gradient centrifugation of blood over Lymphoprep® (Axis Shield), using endotoxin-free reagents. The PBMCs were resuspended in TRIZOL® (Invitrogen) at frozen at -80 °C." "1.Thaw frozen TRIzol lysate vial in 37°C water bath
2.Transfer to new eppendorf (autoclaved) and spin 12,000g, 10min, 4°C to remove insoluble material.
3.Transfer supernatant to new tube and leave at RT for 5min.
4.Add 0.2ml chloroform (per ml TRIzol) and shake by hand 15secs. Leave at RT 2-3mins.
5.Spin 12,000g, 15min, 4°C.
6.Transfer top aqueous phase to new tube. Keep lower phenol phase (contains DNA and protein) – freeze this at –80°C.
7.Add 0.5ml chloroform (per ml TRIzol) and shake 15secs. Leave at RT 2-3mins.
8.Spin 12,000g, 15min, 4°C.
9.Transfer aqueous phase to new tube and add 1 ul of glycogen and then add 0.5ml isopropanol (per ml TRIzol). Vortex and leave at RT for 10mins.
10.Spin 12,000g, 15min, 4°C.
11.Remove supernatant (keep) and add 1ml 75% ethanol (RT). Vortex to dislodge pellet.
12.Spin 7500g, 5min, 5°C.
13.Remove supernatant and spin in bench-top centrifuge 13,000rpm,1min.
14.Remove last traces of ethanol and air dry pellet 5min on bench.
15.Resuspend in 100μl DEPC-treated dH2O.
16.Quantitate RNA by spectrophotometry (A260/A280 programme)

2μl RNA in 498μl DEPC-dH2O.
Concentration (μg/μl) = A260 x 10

17.DNase treatment.

100μg RNA" 150μg RNA 200μg RNA Protocol Parameters Amplification;Extracted product; Amount of nucleic acid labeled;Amplification;Label used; Protocol Hardware Protocol Software MicroArraySuite 5.0 MicroArraySuite 5.0 MicroArraySuite 4.0 Protocol Contact Protocol Term Source REF mo mo mo mo SDRF File E-MEXP-987.sdrf.txt Term Source Name mo ArrayExpress The MGED Ontology mo EFO Term Source File http://mged.sourceforge.net/ontologies/MGEDontology.php http://www.ebi.ac.uk/arrayexpress http://mged.sourceforge.net/ontologies/MGEDontology.php http://mged.sourceforge.net/ontologies/MGEDontology.php http://www.ebi.ac.uk/efo/ Term Source Version