Comment[ArrayExpressAccession] E-GEOD-44692 MAGE-TAB Version 1.1 Public Release Date 2014-04-29 Investigation Title MiR-155 promotes blood-brain barrier dysfunction in neuroinflammation (part 1) Comment[Submitted Name] MiR-155 promotes blood-brain barrier dysfunction in neuroinflammation (part 1) Experiment Description Here, we investigated the time-course changes in the pattern of microRNA (miRNA) expression of TNFα and IFNγ-stimulated and unstimulated hCMEC/D3 cells, an immortalized human cerebral microvascular endothelial cell line. In order to investigate pro-inflammatory cytokine-induced changes in miRNA levels in hCMEC/D3 cells, we challenged brain endothelial cells with TNFα and IFNγ (100 ng/ml) for 2 h, 6 h and 24 h and determined microRNA expression in cytokine-stimulated and unstimulated cells Term Source Name ArrayExpress EFO Term Source File http://www.ebi.ac.uk/arrayexpress/ http://www.ebi.ac.uk/efo/efo.owl Person Last Name Lopez-Ramirez Lopez-Ramirez Wu Pryce Simpson Reijerkerk King-Robson Kay de Vries Hirst Sharrack Baker Male Michael Romero Person First Name Miguel Miguel Dongsheng Gareth Julie Arie Josh Oliver Helga Mark Basil David David Gregory Ignacio Person Mid Initials Alejandro A E E C K J A Person Email m.a.lopez-ramirez@yale.edu Person Affiliation Yale University Person Address Yale Cardiovascular Research Center, Yale University, 300 George street, New Haven, USA Person Roles submitter Protocol Name P-GSE44692-1 P-GSE44692-5 P-GSE44692-6 P-GSE44692-2 P-GSE44692-3 P-GSE44692-4 P-GSE44692-7 Protocol Description standard Agilent Feature Extraction protocol ID_REF = VALUE = Normalized signal intensity Total RNA (100 ng) was labelled with pCp-Cy3 using T4 RNA ligase (GE healthcare, Amersham, UK) Total RNA including miRNA (100 ng) was first dephosphorylated with calf intestine alkaline phosphatase (GE healthcare, Amersham, UK), denatured with dimethyl sulfoxide, and labeled with pCp-Cy3 to the 3’-ends using T4 RNA ligase (GE healthcare, Amersham, UK). The labeled RNAs were hybridized to Agilent human miRNA microarray (Santa Clara, CA). Design ID(AMADID)=021827. Standard Agilent’s miRNA microarray hybridization protocol hCMEC/D3 cells were seeded onto collagen-coated tissue culture plate supplied by Greiner Bio-one (Gloucestershire, UK) and maintained for 72 h after confluence. Culture media was then changed to EGM-2 media without VEGF. Cells were left untreated or treated with TNFα and IFNγ at the concentrations and times indicated for each experiment. hCMEC/D3 cells were cultured in EGM-2 MV medium (Lonza, Slough Wokingham, UK) and supplemented with the following components obtained from the manufacturer: 0.025 % (v/v) rhEGF, 0.025 % (v/v) VEGF, 0.025 % (v/v) IGF, 0.1 % (v/v) rhFGF, 0.1 % (v/v) gentamycin, 0.1 % (v/v) ascorbic acid, 0.04 % (v/v) hydrocortisone and 2.5 % (v/v) foetal bovine serum (FBS) (hereafter referred to as EGM-2 medium). Total RNA of hCMEC/D3 cells were isolated using miRNeasy mini kit (Qiagen, Sussex, UK) according to the manufacturer’s protocols. The quantity (NanoDrop 1000 spectrophotometer) and the quality (2100 Bioanalyzer, RNA 6000 Pico LabChip; Agilent, Palo Alto, CA, USA) of the total RNA were analyzed prior to determination of mRNA levels Standard Agilent scaning protocol Protocol Type normalization data transformation protocol labelling protocol hybridization protocol sample treatment protocol growth protocol nucleic acid extraction protocol array scanning protocol Experimental Factor Name TREATMENT TIME Experimental Factor Type treatment time Comment[SecondaryAccession] GSE44692 Comment[GEOReleaseDate] 2014-04-29 Comment[ArrayExpressSubmissionDate] 2013-02-26 Comment[GEOLastUpdateDate] 2014-04-29 Comment[AEExperimentType] transcription profiling by array Comment[AdditionalFile:Data1] GSE44692_averaged_by_mirna.txt Comment[AdditionalFile:Data2] GSE44692_normalized_by_mirna.txt SDRF File E-GEOD-44692.sdrf.txt