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Sample GSM520525 Query DataSets for GSM520525
Status Public on Mar 01, 2011
Title GBM_differentiation_4 days_3
Sample type RNA
 
Source name glioblastoma stem cells, differentiation, 4 days
Organism Homo sapiens
Characteristics tissue: brain
disease status: glioblastoma
cell type: stem cells G63
Treatment protocol glioblastoma stem cells were differentiated in the presence of FCS for 4 days
Growth protocol Tumor cells were then resuspended in serum-free DMEM/F12 medium (Invitrogen, Carlsbad, CA) containing human recombinant EGF (20 ng/ml; Sigma, St. Louis, MO), bFGF (20 ng/ml; Sigma), B-27 (20 ml per ml of medium; Invitrogen) and heparin (2 mg/ml), and plated at a density of 3x106 live cells/60-mm plate
Extracted molecule total RNA
Extraction protocol The cells were harvested with TRIzol Reagent (Invitrogen) and the RNA was extracted according to the manufacturer's instructions. As a last step of the extraction procedure, the RNA was purified with the RNeasy Mini-kit (Qiagen, Hilden, Germany).
Label biotin
Label protocol The cDNA was prepared from 5 microg total RNA using the One –Cycle cDNA Synthesis kit from Affymetrix. This cDNA was used for synthezising the cRNA using the IVT labeling kit (Affimetrix). The synthezised cRNA was purified with the GeneChip Sample Cleanup Module (Affimetrix).
 
Hybridization protocol Following fragmentation, 15 microg of cRNA were hybridized to the Affymetrix HG-U133A 2.0 chip according to the protocols provided by the manufacturer.
Scan protocol GeneChips were scanned using the GeneChip Scanner 3000 from Affymetrix.
Description G63_DF_4d.CEL
Data processing Data analysis performed using R (2.8.1) and Bioconductor packages. The function rma of package affy (1.20.2) was used for normalization.
 
Submission date Mar 10, 2010
Last update date Mar 04, 2013
Contact name Victor Segura
E-mail(s) vsegura@unav.es
Organization name FIMA
Department Unit of Proteomics, Genomics and Bioinformatics
Street address Avda. Pío XII, 55
City Pamplona
State/province Navarra
ZIP/Postal code 31008
Country Spain
 
Platform ID GPL570
Series (1)
GSE20736 Microarray analysis of differentiation of human glioblastoma stem cells
Relations
Reanalyzed by GSM1092488

Data table header descriptions
ID_REF
VALUE RMA normalized signal intensity

Data table
ID_REF VALUE
1007_s_at 10.91193008
1053_at 9.98324664
117_at 5.743137257
121_at 7.891961621
1255_g_at 3.166586632
1294_at 7.781338792
1316_at 4.923834627
1320_at 5.277761323
1405_i_at 3.043041595
1431_at 4.280192583
1438_at 8.234143806
1487_at 8.521676213
1494_f_at 6.014948823
1552256_a_at 10.65695334
1552257_a_at 9.807356974
1552258_at 7.006066047
1552261_at 4.661256899
1552263_at 6.250672037
1552264_a_at 8.014336207
1552266_at 5.184488991

Total number of rows: 54675

Table truncated, full table size 1212 Kbytes.




Supplementary file Size Download File type/resource
GSM520525.CEL.gz 4.9 Mb (ftp)(http) CEL
Processed data included within Sample table

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