Dataset Information


Organotpyic Human Epithelial Neoplasia

ABSTRACT: Refined cancer models are required to assess the burgeoning number of potential targets for cancer therapeutics within a rapid and clinically relevant context. Here we utilize tumor-associated genetic pathways to transform primary human epithelial cells from epidermis, oropharynx, esophagus, and cervix into genetically defined tumors within an entirely human 3-dimensional (3-D) tissue environment incorporating cell-populated stroma and intact basement membrane (BM). These engineered organotypic tissues recapitulated natural features of tumor progression, including epithelial invasion through the BM, a complex process critically required for biologic malignancy in 90% of human cancers. Invasion was rapid, and potentiated by stromal cells. Oncogenic signals in 3-D tissue, but not 2-D culture, resembled gene expression profiles from spontaneous human cancers. Screening well-characterized signaling pathway inhibitors in 3-D organotypic neoplasia helped distil a clinically faithful cancer gene signature. Multi-tissue 3-D human tissue cancer models may provide an efficient and relevant complement to current approaches to characterize cancer progression. Overall design: Organotypic human epidermal epithium expressing LacZ, cdk4 and Hras, or cdk and Ras with U0126 mediated MEK inhibition were harvested for RNA extraction and hybridization on Affymetrix microarrays. There are 8 biologic replicates for the LacZ, and cdk4 Ras groups, and 2 biologic replicates for the U0126 treated samples.

INSTRUMENT(S): [HG-U133A_2] Affymetrix Human Genome U133A 2.0 Array

ORGANISM(S): Homo sapiens  

SUBMITTER: Todd W. Ridky 

PROVIDER: GSE22573 | GEO | 2010-10-15



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