Human Gene Set: JECHLINGER_EPITHELIAL_TO_MESENCHYMAL_TRANSITION_UP

For the Mouse gene set with the same name, see JECHLINGER_EPITHELIAL_TO_MESENCHYMAL_TRANSITION_UP

Standard name JECHLINGER_EPITHELIAL_TO_MESENCHYMAL_TRANSITION_UP
Systematic name M1406
Brief description Genes up-regulated during epithelial to mesenchymal transition (EMT) induced by TGFB1 [GeneID=7040] in the EpH4 cells (mammary epithelium cell line transformed by HRAS [GeneID=3265]).
Full description or abstract Epithelial-to-mesenchymal transition (EMT), a switch of polarized epithelial cells to a migratory, fibroblastoid phenotype, is increasingly considered as an important event during malignant tumor progression and metastasis. To identify molecular players involved in EMT and metastasis, we performed expression profiling of a set of combined in vitro/in vivo cellular models, based on clonal, fully polarized mammary epithelial cells. Seven closely related cell pairs were used, which were modified by defined oncogenes and/or external factors and showed specific aspects of epithelial plasticity relevant to cell migration, local invasion and metastasis. Since mRNA levels do not necessarily reflect protein levels in cells, we used an improved expression profiling method based on polysome-bound RNA, suitable to analyse global gene expression on Affymetrix chips. A substantial fraction of all regulated genes was found to be exclusively controlled at the translational level. Furthermore, profiling of the above multiple cell pairs allowed one to identify small numbers of genes by cluster analysis, specifically correlating gene expression with EMT, metastasis, scattering and/or oncogene function. A small set of genes specifically regulated during EMT was identified, including key regulators and signaling pathways involved in cell proliferation, epithelial polarity, survival and trans-differentiation to mesenchymal-like cells with invasive behavior.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 14562044   Authors: Jechlinger M,Grunert S,Tamir IH,Janda E,Lüdemann S,Waerner T,Seither P,Weith A,Beug H,Kraut N
Exact source Table 2
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Source species Mus musculus
Contributed by Arthur Liberzon (MSigDB Team)
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identifier namespace		 MOUSE_SEQ_ACCESSION
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Version history 3.1: First introduced

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