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Sample GSM5628279 Query DataSets for GSM5628279
Status Public on Oct 16, 2021
Title HT29_ORF_ARHGEF2_17
Sample type RNA
 
Source name HT-29 ARHGEF2 transduction, UniqueID 17
Organism Homo sapiens
Characteristics cell_line: HT-29
orf: ARHGEF2
uniqueid: 17
arraybatch: E1
transductiondate: 2015-02-26
Treatment protocol ORFs for IBD gene candidates were cloned into a GATEWAY® compatible polycistronic lentiviral expression vector, pLVX-EF1a-IRES-PURO/eGFP expressing an enhanced green fluorescent protein (eGFP) and puromycin N-acetyl-transferase fusion protein.
Proliferative HT-29 cells at 50% confluency in 12 well plate (Corning) were transduced in triplicate with the different ORFs (multiplicity of infection) MOI of 40-100 with 8µg/ml of polybrene (Sigma, Cat: H-9268).
Twenty-four hours post-transduction, media was changed and 3ug/ml puromycin (Millipore Sigma) was added.
The appearance and confluence of the cultures were recorded daily, and cells were grown for an average of 8 days (with a range of 5-27 days) to select successfully transduced cells and reach confluence before RNA extraction.
Transduction of the whole set of IBD gene candidate ORFs was performed in batches of about 15 ORFs, each done in triplicate, and including an empty vector control.
Growth protocol The colorectal adenocarcinoma cell line HT-29 (ATCC HTB-38) was maintained at confluence between 20% and 80% at all times in McCoy’s 5A (Wisent, 317-010CL) 10% FBS. All experiments described herein were performed in cell at passages below 25.
Extracted molecule total RNA
Extraction protocol The RNeasy Plus Mini kit (#74036, Qiagen Inc Canada) according to manufacturer’s protocol.
The RNA samples were quantified, and quality controlled using an Agilent RNA 6000 Nano kit (Agilent, Cat No./ID 5067-1511) on 2100 Bioanalyzer system.
Number (RIN) below 8 were discarded; RIN values were routinely in the range of 9.2-10
Label Cy3
Label protocol Agilent One-Color Microarray-Based Exon Analysis Low Input Quick Amp WT Labeling kit using Cyanine 3-CTP label.
 
Hybridization protocol Samples were blocked with Agilent blocking reagent and incubated for 17h at 65C in the Agilent Microarray Hybridization oven
Scan protocol Agilent SureScan Microarray scanner
Data processing We used Limma v3.26.9 and sva v3.18.0 packages (Bioconductor v3.1-3.2) to load the fluorescence intensity files and handle the data into R V3.2.0. Arrays failing Agilent quality control according to the Agilent Feature Extraction software were flagged. Manual quality control of each array was also performed.
Quality control was performed within each batch of arrays. Fluorescence signal was processed to remove local background (bakgroundCorrect, method “normexp”) and then normalized using cyclic loess algorithm.
Batch effects were then corrected using ComBat for known batches and sva for unknown systematic artefacts (both from sva library v3.18.0). Given the experiment was performed in three parts (E1-E4 & P7, E5-E11, E14-E15), the batches from each part were combined first and then combined together.
To reduce impact of residual background, noise and batch effects on very low expression values, the fluorescence intensity values were truncated at 8, and translated down by the same amount.
Duplicated probes were combined, and repeated samples removed. The truncating threshold was determined based on the distribution of negative control probes and detected vs non-detected signals. Data provided includes only samples included in the final dataset.
 
Submission date Oct 15, 2021
Last update date Oct 16, 2021
Contact name John D Rioux
Organization name Montreal Heart Institute
Department Research Center
Lab Genetics and genomic medecine of Inflammation
Street address 5000 Bélanger St.
City Montréal
State/province QC
ZIP/Postal code H1T 1C8
Country Canada
 
Platform ID GPL30867
Series (1)
GSE186001 Functional screen of Inflammatory bowel disease genes reveals key epithelial functions: Agilent Targeted Dataset

Data table header descriptions
ID_REF
VALUE background corrected,cyclic loess normalized batch effect removed (using ComBat) log2-transformed data

Data table
ID_REF VALUE
A_37_P136616 12.6121730325853
A_37_P136110 4.38009169688735
A_24_P904903 9.43303380863165
A_37_P136602 6.54988950916052
A_37_P458316 11.2795261994916
A_37_P136604 9.17186839636952
A_37_P136607 11.0548577239922
A_37_P360319 10.9238843225271
A_37_P136600 2.03529899763923
A_37_P136605 10.8610712439516
A_37_P136601 3.52904774719793
A_37_P136611 11.8623989437234
A_37_P136603 7.78157528115966
A_37_P136610 10.974197217316
A_37_P136599 4.31657045322559
A_37_P136608 10.5765355189949
A_23_P71624 3.6977682071894
A_37_P096846 4.22360900894044
A_37_P096849 5.09472248339173
A_37_P096841 3.5097026500391

Total number of rows: 27439

Table truncated, full table size 756 Kbytes.




Supplementary file Size Download File type/resource
GSM5628279_SG12024163_255950510080_S001_GE1_107_Sep09_1_3.txt.gz 3.0 Mb (ftp)(http) TXT
Raw data provided as supplementary file
Processed data included within Sample table

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