Comment[ArrayExpressAccession] E-MEXP-3408 Investigation Title Transcription profiling of intramacrophage Burkholderia cenocepacia K56-2 Comment[Submitted Name] Transcription profiling of intramacrophage Burkholderia cenocepacia K56-2 Comment[AEExperimentDisplayName] Transcription profiling of intramacrophage Burkholderia cenocepacia K56-2 Comment[MIAMExpressLogin] jtolman Comment[MIAMExpressSubmissionID] 7875 Experiment Description Effect of internalization by macrophages on bacterial gene transcription in Burkholderia cenocepacia Experimental Design reference_design co-expression_design stimulus_or_stress_design replicate_design Comment[AEExperimentType] transcription profiling by array Experimental Factor Name TREATMENT Experimental Factor Type treatment Person Last Name Tolman Valvano Person First Name Jennifer Miguel Person Email jtolman2@uwo.ca Miguel.Valvano@schulich.uwo.ca Person Phone 519-661-3433 519-661-2111 Person Affiliation University of Western Ontario University of Western Ontario Person Address Microbiology and Immunology, Dental Sciences Building 3014, London, Ontario, N6A 5C1, Canada Microbiology and Immunology, Dental Sciences Building 3014, London, Ontario, N6A 5C1, Canada Person Roles submitter submitter Person Roles Term Source REF MGED Ontology MGED Ontology Quality Control Type biological_replicate Public Release Date 2011-12-07 Comment[ArrayExpressSubmissionDate] 2011-10-26 19:01 Publication Status not yet submitted Protocol Name P-MTAB-23424 P-MTAB-23426 P-MTAB-23428 P-MTAB-23423 P-MTAB-23422 Protocol Description cDNA was labelled with Cy5 using random nonamer primers and the CyScribe Array CGH Labeling Kit (GE Healthcare). B. cenocepacia J2315 genomic DNA was labelled with Cy3 using the same method. (Parameters: Amplification = none, Mass unit = Micro gram) Macrophages were infected with bacteria at a multiplicity of infection of 50:1. Infection continued for 4 hours in DMEM-10% FBS at 37C in a 95% humidified atmosphere with 5% carbon dioxide. At the conclusion of the infection, macrophage monolayers were washed and lysed with cold deionized water, and intracellular bacteria collected. Bacteria lysed in 1 mg/mL lysozyme. RNA extracted with TRIzol according to the manufacturer's instructions. RNA treated with DNase. RNA reverse-transcribed to cDNA, and microbial transcripts purified and amplified using selective capture of transcribed sequences (Daigle et al., Methods Enzymol., 2002). (Parameters: Extracted product = total_RNA, Amplification = OTHER: SCOTS) Bacteria were grown 16h, washed twice with DMEM-10% FBS, and resuspended in DMEM-10% FBS prior to determining OD600. (Parameters: start time = 16, time unit = hours, min temperature = 37, temperature unit = C, media = LB) Equivalent numbers of bacteria (to those used to infect macrophages for intracellular bacteria) were maintained in DMEM-10% FBS at 37C in a 95% humidified atmosphere with 5% carbon dioxide. After four hours, bacteria were resuspended and collected. Protocol Type labeling specified_biomaterial_action nucleic_acid_extraction grow specified_biomaterial_action Protocol Term Source REF MGED Ontology MGED Ontology MGED Ontology MGED Ontology MGED Ontology Term Source Name MGED Ontology ArrayExpress Term Source File http://mged.sourceforge.net/ontologies/MGEDontology.php http://www.ebi.ac.uk/arrayexpress/ SDRF File E-MEXP-3408.sdrf.txt PubMed ID 22321740 Publication Author List Tolman JS, Valvano MA. Publication Title Global changes in gene expression by the opportunistic pathogen Burkholderia cenocepacia in response to internalization by murine macrophages. Publication DOI 10.1186/1471-2164-13-63