Comment[ArrayExpressAccession] E-GEOD-45621 MAGE-TAB Version 1.1 Public Release Date 2013-10-20 Investigation Title Mouse ILC2 cells from wild-type or Gfi1-KO animals Comment[Submitted Name] Mouse ILC2 cells from wild-type or Gfi1-KO animals Experiment Description Innate type-2 lymphocytes (ILC2s) are a newly described cell type whose biology and contribution to disease are poorly understood. We are interested in investigating the role of the transcription factor Gfi1 in ILC2s, which appear to be a prominent source of IL-5 and IL-13 during type-2 immune responses. We have compelling evidence demonstrating a critical role for Gfi1 in the development and effector state of ILC2s. We would like to elucidate the molecular role of Gfi1 in ILC2s by identifying Gfi1-regulated genes by microarray analysis. Gfi1+/+ or Gfi1GFP/GFP (a GFP cassette has been 'knocked-in' to the Gfi1 locus and thus functions both as a surrogate for Gfi1 promoter activity and as a loss-of-function allele) mice were injected with IL-25 once daily for 4 days. On day 5, ILC2s (Lin-/Sca-1+/ICOS+/CD127+/c-Kit+) were sorted from the mesenteric lymph nodes of Gfi1+/+ (3 mice/sample were pooled together) or Gfi1-/- mice (6 mice/sample were pooled together) and cultured for 6 days in RPMI 1640, 10% FBS, Gln, P/S, 2ME, IL-2 (50ng/ml), IL-7 (10ng/ml), and IL-25 (50ng/ml). Whole RNA was harvested on day 6 via the RNeasy kit (Qiagen). 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 Abbas Abbas Spooner Singh Person First Name Alex Alexander Chauncey Harinder Person Mid Initials R Person Email abbas@gene.com Person Affiliation Genentech, Inc. Person Address Bioinformatics, Genentech, Inc., 1 DNA Way, South San Francisco, CA, USA Person Roles submitter Protocol Name P-GSE45621-1 P-GSE45621-4 P-GSE45621-6 P-GSE45621-2 P-GSE45621-5 P-GSE45621-3 P-GSE45621-7 Protocol Description The data were processed with Agilent Feature Extraction software, version 10.7.3.1, using default settings, including linear and Lowess normalization. ID_REF = VALUE = Log2 ratio (ch1/ch2) representing test/reference Biotinylated cRNA were prepared according to the standard Agilent protocol. cRNA was hybridized on Agilent-026655 Whole Mouse Genome Microarray 4x44K. Cells were isolated from either wild-type or GFi1 KO mice. Purified ILC2s were cultured for 6 days in RPMI 1640, 10% FBS, Gln, P/S, 2ME, IL-2 (50ng/ml), IL-7 (10ng/ml), and IL-25 (50ng/ml). Stratagene Universal Mouse Reference RNA (catalog number 740100). RNeasy Mini Kit (Qiagen). Chips were scanned using the Agilent Surescan Microarray Scanner. Protocol Type normalization data transformation protocol labelling protocol hybridization protocol growth protocol nucleic acid extraction protocol nucleic acid extraction protocol array scanning protocol Experimental Factor Name GENOTYPE Experimental Factor Type genotype Comment[SecondaryAccession] GSE45621 Comment[GEOReleaseDate] 2013-10-20 Comment[ArrayExpressSubmissionDate] 2013-03-28 Comment[GEOLastUpdateDate] 2013-10-22 Comment[AEExperimentType] transcription profiling by array SDRF File E-GEOD-45621.sdrf.txt