NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM506268 Query DataSets for GSM506268
Status Public on Jul 28, 2010
Title 3C: Letrozole, 2.5mg/day,oral, 90 days; not assessable
Sample type RNA
 
Source name 3C
Organism Homo sapiens
Characteristics subject: 3
gender: female
tissue: breast tumor
agent: Letrozol
dose: 2.5mg/day
administration: oral
time: 90 days
Treatment protocol breast biopsies were taken from subjects after 90 days Letrozol, 2.5 mg
Extracted molecule total RNA
Extraction protocol Biopsies were snap-frozen after collection and stored in liquid nitrogen. Frozen sections were taken prior to RNA extraction to confirm the presence of cancerous tissue within the specimens. Only samples in which the malignant component comprised at least 20% of the section area were used in further analyses. Immediately before RNA extraction the biopsies were pulverised using U2 micro-dismembranator U (Braun Biotech). Total RNA was extracted from the resultant frozen tissue powder using TRI-reagent (Sigma) according to the manufacturer's recommendations. Extracted RNA was additionally purified on RNeasy mini columns (Qiagen). RNA quantity and quality was verified on Bioanalyser 2100 (Agilent).
Label biotin
Label protocol Approximately 500 ng of total RNA was processed to produce biotinylated cRNA targets using protocol described in Biotechniques. 2003 Mar;34(3):546-50, 552-4, 556
 
Hybridization protocol standard Affymetrix procedures except for use of a custom 24-channel fluidics machine
Scan protocol standard Affymetrix procedures
Description breast tumor biopsy
Data processing MAS5
 
Submission date Feb 03, 2010
Last update date Oct 13, 2010
Contact name John R Walker
E-mail(s) [email protected]
Phone 858-812-1636
Organization name Genomics Institute of the Novartis Research Foundation
Lab Genetics Core
Street address 10675 John Jay Hopkins
City San Diego
State/province CA
ZIP/Postal code 92121
Country USA
 
Platform ID GPL96
Series (1)
GSE20181 Letrozole (Femara) early and late responses to treatment

Data table header descriptions
ID_REF
VALUE 'signal' a measure of the abundance of a transcript

Data table
ID_REF VALUE
1007_s_at 1517.045
1053_at 42.96267
117_at 73.38411
121_at 607.866
1255_g_at 35.88691
1294_at 340.909
1316_at 116.8256
1320_at 7.38637
1405_i_at 96.77931
1431_at 41.48261
1438_at 56.96019
1487_at 186.845
1494_f_at 169.1207
1598_g_at 1534.555
160020_at 281.2584
1729_at 295.3689
177_at 101.5038
1773_at 25.44475
179_at 341.7706
1861_at 116.174

Total number of rows: 22283

Table truncated, full table size 431 Kbytes.




Supplementary file Size Download File type/resource
GSM506268.CEL.gz 3.4 Mb (ftp)(http) CEL
Processed data included within Sample table

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