Gene Set: PUIFFE_INVASION_INHIBITED_BY_ASCITES_DN

Standard name PUIFFE_INVASION_INHIBITED_BY_ASCITES_DN
Systematic name M19152
Brief description Genes down-regulated in OV-90 cells (ovarian cancer) exposed to ascites which inhibited invasion.
Full description or abstract At least one third of all cases of epithelial ovarian cancer are associated with the production of ascites, although its effect on tumor cell microenvironment remains poorly understood. This study addresses the effect of the heterologous acellular fraction of ovarian cancer-derived ascites on a cell line (OV-90) derived from the chemotherapy-na´ve ovarian cancer patient. Ascites were assayed for their effect on cell invasion, growth, and spheroid formation. When compared to either no serum or 5% serum, ascites fell into one of two categories: stimulatory or inhibitory. RNA from OV-90 cells exposed to selected ascites were arrayed on an Affymetrix HG-U133A GeneChip. A supervised analysis identified a number of differentially expressed genes and quantitative polymerase chain reaction validation based on OV-90 cells exposed to 54 independent ascites demonstrated that stimulatory ascites affected the expression of ISGF3G, TRIB1, MKP1, RGS4, PLEC1, and MOSPD1 genes. In addition, TRIB1 expression was shown to independently correlate with prognosis when its expression was ascertained in an independent set of primary cultures established from ovarian ascites. The data support the validity of the strategy to uncover molecular events that are associated with tumor cell behavior and highlight the impact of ascites on the cellular and molecular parameters of ovarian cancer.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 17971902   Authors: Puiffe ML,Le Page C,Filali-Mouhim A,Zietarska M,Ouellet V,Tonin PN,Chevrette M,Provencher DM,Mes-Masson AM
Exact source Table W1: Down
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Organism Homo sapiens
Contributed by Arthur Liberzon (MSigDB Team)
Source platform AFFY_HG_U133
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Version history 3.0: First introduced

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