NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Series GSE2447 Query DataSets for GSE2447
Status Public on Dec 31, 2005
Title Chemosensitivity prediction in esophageal cancer cell line using oligonucleotide array
Organism Homo sapiens
Experiment type Expression profiling by array
Summary A total of 20 KYSE human esophageal squamous cell carcinoma cell lines (KYSE-30, -140, -150, -170, -180, -200, -220, -350, -410, -450, -510, -520, -590, -770, -850, -890, -1170, -1190, -1250, and -2270) were kindly provided by Dr. Y. Shimada (Kyoto University, Kyoto, Japan). The KYSE cell lines were cultured in RPMI 1640 medium (Life Technologies, Inc., Grand Island, NY) containing 10% heat-inactivated fetal bovine serum (FBS; BioWhittaker, Verviers, Belgium) in a humidified atmosphere of 5% CO2 and maintained in continuous exponential growth by passage every 3 days. The exponentially growing cultured cells (2 x 10^6) were collected after two-washings with PBS. Total RNA was prepared from the frozen cell pellets using QIAGEN RNeasy mini kit (QIAGEN, Inc., Valencia, CA). The quality of the RNA was checked using Agilent Technologies 2100 Bioanalyzer (Agilent, Palo Alto, CA).
CodeLink Expression Bioarray System (Amersham Bioscience, Tokyo, Japan) was used according to the manufacturer’s protocol. Briefly, first-strand cDNA was generated from 1 µg of total RNA for each cell line using reverse transcriptase and a T7 primer, and then second-strand cDNA was produced using DNA polymerase mix and RNase H. cRNA was generated via an in vitro transcription reacrion using T7 RNA polymerase and biotin-11-UTP (Perkin Elmer, Boston, MA). After quantified by spectrometry and qualified using Agilent Technologies 2100 Bioanalyzer (Agilent), 10 µg of cRNA was fragmented and hybridized to a Uniset Human 20K I Bioarray containing 19,981 human probes with 108 positive and 300 negative bacterial control probes. After hybridization, the arrays were rinsed and labeled with Streptavidin-Cy5, scanned using Agilent DNA Microarray Scanner (Agilent), then analyzed with CodeLink Expression Analysis Software ver.2.3. Expression levels were normalized to the median expression value of the whole array spots except for the bacterial controls.
Keywords: parallel sample
 
Overall design To explore the genes responsible for chemosensitivity in cancer cells, expression profiles of various cancer cell lines were examined. Statistically comparing them with the chemosensitivity measured by in vitro MTT assay in each cell line, several candidate genes were selected and predicition models for anticancer efficacy were established using their expression levels.
 
Contributor(s) Nishiyama M, Shimokuni T, Tanimoto K, Hiyama E, Otani K, Ohtaki M
Citation(s) 16596231
Submission date Mar 25, 2005
Last update date Mar 16, 2012
Contact name Keiko Hiyama
E-mail(s) khiyama@hiroshima-u.ac.jp
Phone 81-82-257-5841
Fax 81-82-256-7105
Organization name Hiroshima University
Department Research Institute for Radiation Biology and Medicine
Lab Dept. Translational Cancer Research
Street address 1-2-3 Kasumi, Minami-ku
City Hiroshima
State/province Hiroshima
ZIP/Postal code 734-8553
Country Japan
 
Platforms (1)
GPL1928 CodeLink Human 20K ver4.1
Samples (20)
GSM46347 KYSE30oligo
GSM46348 KYSE140oligo
GSM46349 KYSE150oligo
Relations
BioProject PRJNA92655

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

Supplementary file Size Download File type/resource
GSE2447_RAW.tar 71.5 Mb (http)(custom) TAR (of TXT)

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap