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Series GSE19992 Query DataSets for GSE19992
Status Public on Mar 01, 2014
Title Gene expression profiles of oxaliplatin resistant colorectal cancer and ovarian cancer cell lines
Organism Homo sapiens
Experiment type Expression profiling by array
Summary Oxaliplatin resistance was induced in 2 colorectal cancer cell lines (LoVo-92, wt-p53 and LoVo-Li, functionally inactive p53) and one ovarian cancer cell line (A2780, wt-p53). Resistance was induced by weekly exposure to oxaliplatin for 4 hrs or 72 hrs with increasing concentrations for a period of 7 months.
Overall design After RNA isolation, 500ng of RNA of the resistant and parental cell line were linearly amplified and fluorescently labeled with either Cy3-CTP or Cy5-CTP with the Agilent Low RNA Input Fluorescent Linear Amplification Kit (Agilent Technologies, Amstelveen, The Netherlands). Equal amounts (1µg) of Cy3-CTP and Cy5-CTP labeled samples were hybridized to Agilent 4x44K Whole Human Genome arrays (Agilent Technologies) according to the manufacturer. Equal amounts (1µg) of Cy3-CTP and Cy5-CTP labeled samples were hybridized to Agilent 44K Whole Human Genome arrays (Agilent Technologies, Part Number G4112A) according to manufacturer's instructions. Microarrays were scanned using an Agilent DNA Microarray Scanner, and scans were quantified using Agilent Feature Extraction software (version 8.5.1). Raw expression data generated by the Feature Extraction software was imported into R using the LIMMA package in Bioconductor ( As overall background levels were very low, no background correction was performed. The intensity distributions within and between arrays were normalized using the quantile scaling algorithm in LIMMA. After normalization, the separate intensity channels were extracted from the ratio measurements and combined to the intensities of the reference. The parental cell line was used as reference.
Contributor(s) Noordhuis P, Laan AC, Losekoot N, van de Born K, Eijk P, IJlstra B, Peters GJ
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Submission date Jan 21, 2010
Last update date Feb 22, 2018
Contact name Daoud Sie
Phone +31 20 4442428
Organization name Vrije Universiteit Medical Center
Department Pathology
Lab Microarray Core Facility
Street address De Boelelaan 1117
City Amsterdam
ZIP/Postal code 1081 HV
Country Netherlands
Platforms (1)
GPL4133 Agilent-014850 Whole Human Genome Microarray 4x44K G4112F (Feature Number version)
Samples (7)
GSM499089 LoVo-92/4OHP oxaliplatin resistant
GSM499090 LoVo-92/cOHP oxaliplatin resistant
GSM499091 LoVo-Li/4OHP oxaliplatin resistant
BioProject PRJNA120157

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SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE19992_RAW.tar 114.6 Mb (http)(custom) TAR (of TXT)
Processed data included within Sample table

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