NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM142448 Query DataSets for GSM142448
Status Public on Oct 28, 2006
Title A2780_6h_rep2
Sample type RNA
 
Source name A2780 ovarian carcinoma cell line
Organism Homo sapiens
Characteristics A2780 ovarian carcinoma cell line
Biomaterial provider ECACC (Cat no.93112519)
Treatment protocol Human Ovarian cell line A2780 was untreated or exposed to 3 micromolar of a cell cycle inhibitor for 6hrs
Growth protocol A2780 was grown in RMPI 1640 + 10% FCS +2mM Glutamine and maintained at 37C in an atmosphere of 5% CO2 and 95% room air. Cells were plated at 2 x 106 cell/ml and after 24hrs were exposed to 3 micromolar of the inhibitor for 6hrs.
Extracted molecule total RNA
Extraction protocol Total RNA extraction was performed using Qiagen RNeasy Mini kit 74106 following manufacturers instructions.
Label biotin
Label protocol 5 micrograms of each RNA samples was used for the amplification/labelling reaction. 1st and 2nd strand cDNA synthesis was performed with the Invitrogen kit (11917-020) and the IVT reaction was done with Megascript T7 from Ambion (1334). All steps were done according to manufacturers instructions and cRNA was quantitated on a spectrophotometer. 15 micrograms of cRNA was fragmented and checked by denaturing gel electrophoresis. Bacterial transcripts at the cRNA level were spiked into each sample prior to hybridisation.
 
Hybridization protocol 10 micrograms of fragmented cRNA was hybridised to a Human Genome U133 Plus 2.0 Array (900466). Hybridisations, washing and staining were performed according to Affymetrix protocols
Scan protocol Hybridised arrays were scanned with the Genechip Scanner 3000
Description Human Ovarian cell line A2780 was obtained from ECACC (Cat no.93112519) and cells were untreated or exposed to 3 micromolar of a cell cycle inhibitor for 6hrs. Three biological replicates were performed for each treatment. Only attached cells were harvested. RNA was purified using a Qiagen RNA purification kit. RNA was quantitated using a spectrophotometer and the quality of the RNA was assessed using a Bioanalyser.
Biological replicates were pooled to obtain a unique sample for each treatment, which was then divided to generate three aliquots for each condition (technical replicates).
Data processing Probe set intensities were calculated using the RMA algorithm and normalized by the quantiles method
 
Submission date Oct 26, 2006
Last update date Aug 28, 2018
Contact name Roberta Bosotti
E-mail(s) roberta.bosotti@nervianoms.com
Organization name Nerviano Medical Sciences srl
Department Biotechnology
Lab Genomics
Street address viale Pasteur,10
City Nerviano
State/province MI
ZIP/Postal code 20014
Country Italy
 
Platform ID GPL570
Series (1)
GSE6140 Cross platform microarray analysis for robust identification of differentially expressed genes
Relations
Reanalyzed by GSE64985
Reanalyzed by GSE119087

Data table header descriptions
ID_REF
VALUE CTRL2

Data table
ID_REF VALUE
1007_s_at 7.378952065
1053_at 9.054877699
117_at 6.107298294
121_at 7.654934556
1255_g_at 3.941227556
1294_at 4.945834589
1316_at 5.394676413
1320_at 4.931865558
1405_i_at 3.08366425
1431_at 4.317186906
1438_at 6.798319867
1487_at 7.414654021
1494_f_at 5.160229187
1552256_a_at 8.945998825
1552257_a_at 9.293713197
1552258_at 4.979117771
1552261_at 5.173251746
1552263_at 6.972308085
1552264_a_at 8.161176637
1552266_at 4.63375038

Total number of rows: 54675

Table truncated, full table size 1212 Kbytes.




Supplementary file Size Download File type/resource
GSM142448.CEL.gz 4.9 Mb (ftp)(http) CEL

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