GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
Series GSE8096 Query DataSets for GSE8096
Status Public on Jul 12, 2007
Title Transcription profiling time series of finite life span and immortal non-malignant human mammary epithelial cell lines
Organism Homo sapiens
Experiment type Expression profiling by array
Summary Nonmalignant human mammary epithelial cells (HMEC) seeded in laminin-rich extracellular matrix (lrECM) form polarized acini and, in doing so, transit from a disorganized proliferating state to an organized growth-arrested state. We hypothesized that the gene expression pattern of organized and growth-arrested HMECs would share similarities with breast tumors with good prognoses. Using Affymetrix HG-U133A microarrays, we analyzed the expression of 22,283 gene transcripts in 184 (finite life span) and HMT3522 S1 (immortal nonmalignant) HMECs on successive days after seeding in a lrECM assay. Both HMECs underwent growth arrest in G0-G1 and differentiated into polarized acini between days 5 and 7. We identified gene expression changes with the same temporal pattern in both lines and examined the expression of these genes in a previously published panel of microarray data for 295 breast cancer samples. We show that genes that are significantly lower in the organized, growth-arrested HMEC than in their proliferating counterparts can be used to classify breast cancer patients into poor and good prognosis groups with high accuracy. This study represents a novel unsupervised approach to identifying breast cancer markers that may be of use clinically.
Keywords: time course
Overall design We analyzed gene expression in 184 (finite life span) and HMT3522 S1 (immortal non-malignant) HMECs on successive days (3, 5, and 7) post-seeding in a laminin-rich extracellular matrix assay. Both HMECs underwent growth arrest in G0/G1 and differentiated into polarized acini between days 5 and 7.
Contributor(s) Fournier MV, Martin KJ, Kenny PA, Xhaja K, Bosch I, Yaswen P, Bissell MJ
Citation(s) 16849555
Submission date Jun 12, 2007
Last update date Aug 10, 2018
Contact name Katherine J Martin
Organization name Bioarray Consulting
Street address 61 Carleton Rd
City Belmont
State/province MA
ZIP/Postal code 02478
Country USA
Platforms (1)
GPL96 [HG-U133A] Affymetrix Human Genome U133A Array
Samples (12)
GSM200612 HMEC S1 day 3 sample 1
GSM200739 HMEC S1 day 3 sample 2
GSM200740 HMEC S1 day 5 sample 1
BioProject PRJNA100949

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
GSE8096_RAW.tar 40.5 Mb (http)(custom) TAR (of CEL)
Processed data included within Sample table

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