Comment[ArrayExpressAccession] E-GEOD-45328 MAGE-TAB Version 1.1 Public Release Date 2013-03-21 Investigation Title Inactivation of TP53 correlates with disease progression and low miR-34a expression in previously treated chronic lymphocytic leukemia patients Comment[Submitted Name] Inactivation of TP53 correlates with disease progression and low miR-34a expression in previously treated chronic lymphocytic leukemia patients Experiment Description Micro-RNA expression data of CD19 selected B-cells from previously treated and relapsed chronic lymphocytic leukemia patients. We aimed to correlate miR-34a with TP53 mutation status and del17p status. CD19 B-cells from previously treated and relapsed chronic lymphocytic leukemia patients were selected for RNA extraction and hybridization on Affymetrix microarrays. 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 Palermo Dufour Palermo Zellmeier Mellert Duchateau-Nguyen Schneider Benthaus Kakadia Spiekermann Hiddemann Braess Truong Patten Wu Lohmann Dornan GuhaThakurta Yeh Salogub Solal-Celigny Dmoszynska Robak Montillo Catalano Geisler Weisser Bohlander Person First Name Giuseppe Annika Giuseppe Evelyn Gudrun Guillemette Stephanie Tobias Purvi Karsten Wolfgang Jan Sim Nancy Lin Sabine David Debraj Ru-Fang Galina Philippe Anna Tadeusz Marco John Christian Martin Stephan Person Mid Initials M H K Person Email giuseppe.palermo@roche.com Person Affiliation F. Hoffman-La Roche Ltd. Person Address F. Hoffman-La Roche Ltd., wettsteinallee 76, Basel, Switzerland Person Roles submitter Protocol Name P-GSE45328-1 P-GSE45328-5 P-GSE45328-4 P-GSE45328-2 P-GSE45328-3 P-GSE45328-6 Protocol Description ID_REF = VALUE = log2 RMA signal Imaging and signal extraction were performed according to Affymetrix-recommended procedures. GCOS 1.3 was used Hybridization was performed according to Affymetrix-recommended procedures, except that the 20X GeneChip Eukaryotic Hybridization Controls were omitted from the hybridization. RNA of CD19 selected B-cells was isolated using Ambion miRVANA total RNA extraction kit The 3’ ends of RNA molecules in total RNA samples (400ng total RNA per sample) were labeled with biotin according to the company’s standard protocol The probe intensities of miRNA arrays were background-subtracted, quantile normalized and summarized using the RMA method. All data were log2-transformed Protocol Type bioassay_data_transformation image_aquisition hybridization nucleic_acid_extraction labeling feature_extraction Experimental Factor Name MULTIPLE P53 MUTATION P53 MUTATION DOMINANT P53 MUTATION DEL17P Experimental Factor Type multiple p53 mutation p53 mutation dominant p53 mutation del17p Comment[SecondaryAccession] GSE45328 Comment[GEOReleaseDate] 2013-03-21 Comment[ArrayExpressSubmissionDate] 2013-03-20 Comment[GEOLastUpdateDate] 2013-03-22 Comment[AEExperimentType] transcription profiling by array SDRF File E-GEOD-45328.sdrf.txt